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Seneca, IL

Illinois · Grundy County · Chicago-Naperville-Elgin Metro

Seneca is a small town in Illinois with a population of 2,525. Residents earn $91,065 per year, which is 21% above the national average.

3.1 /5.0
B Good
2,525 Population 407/sq mi density
$91,065 Median Income $42,714 per capita
$206,400 Home Value $246,823 Zillow
$988 Median Rent 21.3% income on rent
50°F Avg Temperature 275 sunny days/yr
649 Violent Crime/100K 2,509 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.5 / 5.0
$91,065 median income, 2.5% unemployment
A+
Affordability
5.0 / 5.0
$206,400 home value, $988/mo rent
F
Safety
1.0 / 5.0
649 violent crimes/100K (71% above avg)
C
Education
2.0 / 5.0
12.9% bachelor's degree or higher

Discover Seneca, IL

Explore over 40 sections covering people, economy, housing, health, crime, climate, community, costs, trends, schools, colleges, hospitals, treatment centers, industries, museums, libraries, breweries, farmers markets, grocery stores, pharmacies, campgrounds, parks, trails, stadiums, ski resorts, daycare centers, nursing homes, churches, fire stations, cell towers, bridges, power plants, EV stations, prisons, radio stations, airports, police stations, post offices, Amtrak stations, superfund sites, UNESCO sites, and more.
Use the tabs and dropdown menus below to navigate every data point we track for this city.

Full City Profile
Median Income $91,065
21% higher than US avg
Home Value $206,400
27% lower than US avg
Violent Crime 649/100K
71% higher than US avg
Bachelor's+ 12.9%
62% lower than US avg
Median Rent $988
15% lower than US avg
Obesity Rate 37.5%
17% higher than US avg
Unemployment 2.5%
31% lower than US avg
Poverty Rate 11.1%
10% lower than US avg

How Seneca Compares to the U.S. Average (100% = U.S. avg)

People

Population2,525
Median Age35.2 yrs
Density407/mi²
Male / Female53% / 47%
Largest GroupWhite 90%
Veterans11.1%

Economy

A+
Median Income$91,065
Per Capita$42,714
Unemployment2.5%
Poverty11.1%
County GDP$6,044M
Commute30 min

Housing

A+
Home Value$206,400
Rent$988
Ownership76.6%
Zillow$246,823
Housing Units1,002
Rent Burden21.3%

Crime

F
Violent649/100K
Property2,509/100K
Murder0.0/100K
Assault649/100K
Burglary649/100K

Health

Obesity37.5%
Uninsured8.1%
Smoking15.8%
Depression24.4%
Heart Disease5.6%

Climate

Avg Temp50°F (10°C)
AQI43 (Good)
Rain39.0 in/yr
Sunny Days275/yr
Elevation508 ft (155 m)

Education

C
Bachelor's+12.9%
High School+94.7%
Graduate+2.2%
School Score6.08

Community

2024 VoteR 64% / D 34%
Commute30 min
Broadband92.2%
EV Stations1
Libraries3

Is Seneca a Good Place to Live?

Based on current data, Seneca receives an overall livability score of 3.1 out of 5.0, earning a grade of B. Key strengths include above-average household incomes, low unemployment, affordable housing, abundant sunshine. Areas to be aware of include elevated crime rates. Seneca offers a solid quality of life with a good balance of affordability, safety, and opportunity.

Economy & Jobs

The median household income in Seneca is $91,065, 21% above the national average of $75,149. Residents generally enjoy above-average earning potential. The job market is very strong with unemployment at just 2.5%. 11.1% of residents live in poverty, near the national average of 12.4%. Workers commute an average of 30 minutes.

Cost of Living & Housing

The median home value in Seneca is $206,400, 27% below the national median / offering relatively affordable homeownership. Renters pay a median of $988 per month, below the national average / a plus for affordability. At just 2.3x median income, home prices are very affordable relative to local earnings.

Safety & Crime

With 649 violent crimes per 100,000 residents, public safety is a notable concern / this is significantly above the national average of 380. Property crime occurs at a rate of 2,509 per 100,000, 28% above the national average.

Education

12.9% of residents hold a bachelor's degree, below the national average of 33.7%. 94.7% have completed high school. Local schools score 6.1/10 in standardized testing, reflecting strong academic performance.

Climate & Weather

Seneca experiences four distinct seasons with an average temperature of 50°F. Winters average 23°F in January while summers reach 73°F in July. With 275 sunny days per year, residents enjoy well above the national average of sunshine. Annual precipitation totals 39.0 inches, including 25.0 inches of snow. Air quality is rated Good with a median AQI of 43.

Seneca has a population of 2,525 with a density of 407 people per square mile, spread across 2.7 square miles. The median age is 35.2 years, 10% younger than the national median of 38.9. The gender split is 46.9% female and 53.1% male. The city is predominantly White (89.9%), with 1.1% Black. English is the primary language spoken at home by 98.1% of residents. 11.1% of the population are veterans, above the national rate of 6.0%. 10.9% of residents have a disability. 95.8% have health insurance coverage.

Population

2,525
Total Population
407
People / sq mi
35.2yrs
Median Age
10% below US avg
2.7mi²
Land Area

Gender Distribution

Male 53.1%
Female 46.9%

Race & Ethnicity

Seneca vs U.S. Average

Language Spoken at Home

English Only 98.1%
25% above US avg
Spanish 1.9%
86% below US avg

Social Characteristics

Seneca vs U.S. Average

The median household income in Seneca is $91,065, which is 21% above the national average of $75,149. Per capita income is $42,714. The average weekly wage is $1,344. The unemployment rate is 2.5% (below the 3.6% US average). 11.1% of residents live below the poverty line. The area has 1,204 business establishments, including 130 restaurants. The cost of living index is 100, roughly in line with the national average. Workers commute an average of 30 minutes. 6.3% of workers work from home (below the 15.2% national rate).

Income: Seneca vs U.S.

Commute Mode

Income

Median HH Income$91,065
21% above US avg
Per Capita Income$42,714
Avg Weekly Wage$1,344
IRS Avg AGI$81,890
Gini Index0.396 (0=equal, 1=unequal)

Employment & Poverty

Unemployment2.5%
31% below US avg
Poverty Rate11.1%
10% below US avg
Establishments (County)1,204
County GDP$6,044M

Business (County)

Restaurants130
Healthcare145
Retail162
Manufacturing43

Tax & Cost of Living

Property Tax (IRS)$6,618
89% above US avg
Cost of Living100.00 (100=avg)
Effective Tax Rate3.21%

Commute & Transportation

Commute Time29.9 min
Drive Alone77.5%
Public Transit0.0%
Work from Home6.3%

Walkability

The median home value in Seneca is $206,400, 27% below the national median of $281,900. Zillow estimates the typical home value at $246,823, higher than the Census estimate. Monthly rent averages $988 (15% below the national average of $1,163). Fair market rent ranges from $854 for a one-bedroom to $1,063 for a two-bedroom apartment. 76.6% of housing units are owner-occupied (above the 65.4% national rate). There are 1,002 total housing units in the city. The median year a home was built is 1976. The average annual property tax is $6,618 (higher than the $3,500 national average). 21.3% of renters spend 30% or more of their income on housing. The home price-to-income ratio is 2.3x, well within the affordable range.

Home Value Sources

Ownership Split

Home Values

Census Median$206,400
27% below US avg
Zillow ZHVI$246,823

Real Estate Market (Redfin)

Rental Costs

Census Median Rent$988
15% below US avg
Rent Burden21.3%

HUD Fair Market Rent

Studio$774
1 Bedroom$854
2 Bedrooms$1,063
3 Bedrooms$1,370
4 Bedrooms$1,561

Ownership & Property

Homeownership76.6%
Owner-Occupied76.6%
Renter-Occupied23.4%
Housing Units1,002
Median Year Built1976

Property Tax

Avg Tax (IRS)$6,618
89% above US avg
Effective Rate3.21%
In Seneca, 37.5% of adults are obese, above the national rate of 32.1%. 9.7% have diabetes. Heart disease affects 5.6% of residents. 31.1% have high blood pressure. 15.8% are current smokers. 21.3% report binge drinking. 22.8% are physically inactive. 24.4% report depression (above the 20.0% national average). 19.0% experience frequent mental distress. 8.1% of residents lack health insurance. The primary care physician ratio is 1:3,117. The dentist ratio is 1:2,792. 78.7% of residents have access to exercise opportunities. The food environment index is 8.8 out of 10.

Health Metrics: Seneca vs U.S. Average (%)

Chronic Conditions

Obesity37.5%
17% above US avg
Diabetes9.7%
Heart Disease5.6%
High Blood Pressure31.1%
Asthma10.6%
COPD6.9%
Cancer7.4%
Stroke3.0%

Behaviors & Mental Health

Smoking15.8%
13% above US avg
Binge Drinking21.3%
Physical Inactivity22.8%
Depression24.4%
Mental Distress19.0%
Physical Distress13.0%
Short Sleep36.4%

Healthcare Access

Insurance Rate95.8%
Uninsured8.1%
6% below US avg
Primary Care1:3,117
Dentists1:2,792
Mental Health1:530
Checkup Rate75.3%
Dental Visits61.9%
Premature Death7,576/100K

Food & Exercise

Food Environment8.8/10
Exercise Access78.7%
Healthcare Facilities145
Seneca has a violent crime rate of 649 per 100,000 residents, 71% above the national average of 380. This breaks down to aggravated assault at 648.8 per 100,000, robbery at 0.0, rape at 0.0. The murder rate is 0.0 per 100,000 (below the national rate of 6.3). Property crime stands at 2,509 per 100,000, 28% above the U.S. average. This includes larceny/theft at 1,860, burglary at 649, vehicle theft at 0 per 100,000 residents. The county recorded 5 fatal traffic crashes. Overall, Seneca receives a safety grade of F.

Crime Rates: Seneca vs U.S. Average (per 100,000)

Violent Crime

Total Violent648.8/100K
71% above US avg
Murder0.0/100K
100% below US avg
Rape0.0/100K
Robbery0.0/100K
Assault648.8/100K

Property Crime

Total Property2,508.7/100K
28% above US avg
Burglary648.8/100K
Theft1,859.9/100K
Vehicle Theft0.0/100K
Arson0.0/100K

Traffic Safety

Fatal Crashes (County/yr)5
Traffic Accidents17
Avg Accident Severity2.6 / 4.0

Safety Score

Safety GradeF
Safety Score1.0 / 5.0
View full crime details →
Seneca experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 23°F in January while summers reach 73°F in July. The area gets 275 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 39.0 inches. The area receives 25.0 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 508 feet.

Temperature

23°F Jan (-5°C) 73°F Jul (23°C)
Annual Average49.7°F
8% below US avg
January Average23°F (-5°C)
July Average73°F (23°C)
Sunny Days275 days/yr

Geography

Elevation508 ft (155 m)
Area2.7 sq mi (7.0 km²)
Population Density407/sq mi
Coordinates41.3026°N, 88.6147°W
TimezoneAmerica/Chicago
CountyGrundy County County
Nearest AirportJoliet Regional (JOT)
27 miles away

Precipitation & Snow

Annual Rainfall 39.0"
3% above US avg
Snowfall 25.0"
Wettest Month (Jun) 3.94"
Driest Month (Feb) 1.38"

Air Quality

AQI Median43.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score66.5 / 100
Social Vulnerability10.6 / 100
Community Resilience99.5 / 100

Hazard Breakdown

Tornado Relatively Moderate
Hurricane Very Low
Earthquake Very Low
Wildfire Very Low
Flood Relatively Low
Hail Very Low
Strong Wind Relatively Moderate
Heat Wave Relatively Low
Winter Weather Relatively Low
Lightning Very Low
Ice Storm Very Low
Drought Relatively Low
Cold Wave Relatively High
Landslide Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

8 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.2. Most recent: M2.6 on Mar 15, 2025.

Jun 28, 2004 12 km NW of Dayton, Illinois M4.2 30 km
Feb 10, 2010 2 km NW of Lily Lake, Illinois M3.8 75 km
Sep 2, 1999 8 km W of Amboy, Illinois M3.5 83 km
Nov 4, 2013 1 km SSW of Lyons, Illinois M3.2 86 km
Jul 15, 2024 2 km WNW of Somonauk, Illinois M3.1 39 km
Mar 25, 2015 3 km WNW of Lake in the Hills, Illinois M2.9 101 km
Jun 10, 2013 4 km NNE of Virgil, Illinois M2.6 77 km
Mar 15, 2025 6 km W of Dwight, Illinois M2.6 26 km
Source: USGS (M2.5+, 1990–2025)

Tornado History

734 tornadoes (EF0+) within 100 km since 1950. Strongest: EF5. Total: 90 fatalities, 1,570 injuries.

Date Rating Distance Fatalities
Aug 28, 1990 EF5 47 km 29
Apr 9, 2015 EF4 83 km 2
Jul 13, 2004 EF4 82 km 0
Jun 29, 1979 EF4 40 km 0
Jun 13, 1976 EF4 66 km 2
Apr 21, 1967 EF4 99 km 1
Apr 21, 1967 EF4 77 km 33
Apr 17, 1963 EF4 45 km 1
Jun 20, 2021 EF3 60 km 0
Feb 28, 2017 EF3 76 km 0
Feb 28, 2017 EF3 28 km 2
Jun 22, 2015 EF3 19 km 0
Jun 5, 2010 EF3 77 km 0
Jun 5, 2010 EF3 25 km 0
Apr 20, 2004 EF3 56 km 8
May 9, 1995 EF3 99 km 0
Mar 27, 1991 EF3 53 km 0
Apr 27, 1984 EF3 36 km 1
Apr 2, 1982 EF3 60 km 0
Jun 30, 1977 EF3 45 km 0
Source: NOAA SPC (EF0+, 1950–2024)

Wildfire History

9 wildfires (100+ acres) within 100 km. Largest: UNNAMED (1,741 ac, 2019).

Year Name Acres Distance
2019 UNNAMED 1,741 38 km
2019 UNNAMED 1,664 43 km
2000 UNNAMED 1,602 94 km
2021 NORTHEAST PRAIRIE UNIT 3 978 49 km
2024 NORTHEAST PRAIRIE 3 RX 938 49 km
2021 UNNAMED 738 48 km
2021 MIDDLE GRANT CREEK 700 39 km
2019 UNNAMED 698 49 km
2017 UNNAMED 549 39 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 23°F (-5°C) 1.5 in Coldest
February 27°F (-3°C) 1.4 in Driest
March 38°F (3°C) 2.7 in
April 50°F (10°C) 3.7 in
May 61°F (16°C) 3.9 in
June 70°F (21°C) 3.9 in Wettest
July 73°F (23°C) 3.9 in Warmest
August 72°F (22°C) 3.5 in
September 65°F (18°C) 3.6 in
October 53°F (12°C) 2.6 in
November 40°F (5°C) 2.9 in
December 28°F (-2°C) 2.4 in

Seneca has a seasonal temperature swing of 50°F / from 23°F in January to 73°F in July. Total annual precipitation is 36.0 inches, with June being the wettest month (3.9") and February the driest (1.4").

View full weather details →
Seneca is located in Grundy County. It is classified as Metro / 1 million+, part of a metropolitan area. 12.9% of adults hold a bachelor's degree or higher, 62% below the national average of 33.7%. 94.7% have completed high school. 2.2% hold a graduate or professional degree (below the 13.1% national rate). Area schools have an average test score of 6.1 out of 10. In the 2024 presidential election, the county voted Republican with 64.1% of the vote, a 29.6-point margin. 92.2% of households have broadband internet access. The area has 1 EV charging stations. There are 3 public libraries serving the community. 145 healthcare facilities operate in the area. 77.5% of workers drive alone to work.

2024 Presidential Election (County)

R 64.1%
D 34.5%

Winner: Republican by 29.6 points

Safety & Disasters

Fatal Crashes (County/yr)5
Traffic Accidents17
Avg Accident Severity2.6 / 4.0
F Safety Grade (1.0/5.0)

Education

Bachelor's Degree+12.9%
62% below US avg
High School+94.7%
Graduate Degree+2.2%
School Test Score6.08
C Education Grade (2.0/5.0)

Area & Infrastructure

RUCC Code 1Metro / 1 million+
Population Density407/sq mi
Total Area2.7 sq mi
CountyGrundy County County

Services

Broadband Access92.2%
Avg Download Speed62.7 Mbps
Avg Upload Speed5.8 Mbps
Max Download Speed1,000 Mbps
EV Charging Stations1
Alt Fuel Stations3
Public Libraries3
Healthcare Facilities145
Restaurants130
Retail Stores162

Commute & Transportation

Avg Commute29.9 min
Drive Alone77.5%
Public Transit0.0%
Work from Home6.3%
Average costs for common services in Seneca. Prices are estimated based on regional cost of living data and may vary by provider.

Healthcare

Doctor Visit (Primary Care) $250 ($150–$400)
Specialist Visit $350 ($200–$550)
Urgent Care Visit $200 ($100–$350)
Emergency Room Visit $2,200 ($800–$5,000)
Dental Cleaning $130 ($75–$200)
Dental Filling $250 ($150–$400)
View all 40 services

Auto Repair

Oil Change (Conventional) $45 ($25–$75)
Oil Change (Synthetic) $75 ($50–$120)
Brake Pad Replacement $300 ($150–$500)
Tire Rotation $40 ($20–$75)
New Tires (Set of 4) $600 ($400–$1,000)
Battery Replacement $200 ($100–$350)
View all 18 services

Home Services

Plumber (Per Hour) $100 ($60–$150)
Electrician (Per Hour) $90 ($50–$140)
HVAC Repair $400 ($150–$800)
HVAC System Install $7,000 ($4,000–$12,000)
Roof Repair $1,000 ($400–$2,000)
Roof Replacement $9,000 ($5,500–$15,000)
View all 25 services

Legal

Divorce (Uncontested) $1,500 ($500–$3,500)
Divorce (Contested) $15,000 ($5,000–$30,000)
DUI Defense $5,000 ($2,000–$10,000)
Bankruptcy (Chapter 7) $1,500 ($800–$3,000)
Will Preparation $500 ($200–$1,000)
Trust Preparation $2,500 ($1,000–$5,000)
View all 12 services

Personal Care

Men's Haircut $25 ($15–$45)
Women's Haircut $55 ($30–$100)
Hair Coloring (Full) $150 ($75–$250)
Manicure $25 ($15–$45)
Pedicure $40 ($25–$65)
Massage (1 Hour) $80 ($50–$130)
View all 12 services

Food & Grocery

Gallon of Milk (per gallon) $4.10 ($3.00–$5.50)
Dozen Eggs (per dozen) $3.50 ($2.50–$5.00)
Loaf of Bread $3.80 ($2.50–$5.50)
Chicken Breast (per lb) $4.50 ($3.00–$6.50)
Ground Beef (per lb) $5.50 ($4.00–$7.50)
Rice (per lb) $1.00 ($0.60–$1.80)
View all 20 services

Utilities

Electricity (Monthly) $140 ($80–$250)
Natural Gas (Monthly) $70 ($30–$150)
Water/Sewer (Monthly) $70 ($40–$120)
Internet (Monthly) $70 ($40–$100)
Cell Phone Plan (Monthly) $65 ($30–$100)
Cable TV (Monthly) $85 ($50–$150)
View all 8 services

Transportation

Monthly Parking (Downtown) $200 ($75–$500)
Car Insurance (Annual) $2,000 ($1,200–$3,500)
Bus Pass (Monthly) $70 ($30–$130)
Taxi/Uber (5-Mile Ride) $15 ($8.00–$25)
Car Registration (Annual) $100 ($30–$250)
Driver's License Renewal $30 ($15–$75)
View all 8 services

Education & Childcare

Daycare (Infant, Monthly) $1,200 ($600–$2,500)
Daycare (Toddler, Monthly) $1,000 ($500–$2,000)
After-School Care (Monthly) $400 ($200–$700)
Tutoring (Per Hour) $50 ($25–$100)
SAT/ACT Prep Course $1,000 ($400–$2,500)
Private School (K-12, Annual) $12,500 ($5,000–$30,000)
View all 8 services

Pets

Vet Visit (Routine Checkup) $60 ($30–$100)
Dog Vaccination (Annual) $100 ($50–$200)
Dog Grooming $60 ($30–$100)
Pet Boarding (Per Night) $40 ($20–$75)
Dog Spay/Neuter $300 ($150–$500)
Cat Spay/Neuter $200 ($100–$400)
View all 9 services

Childcare

Center-Based (monthly)
Infant$1,144
Toddler$888
Preschool$820
Family Childcare (monthly)
Source: DOL Women's Bureau (2022)

Top Industries in Grundy County

Largest private-sector industries by employment (BLS QCEW 2024 data, county level).

Industry Jobs Establishments Avg Annual Pay Location Quotient
Retail Trade 4,490 140 $46,812 2.01
Health Care & Social Assistance 2,505 116 $58,899 0.78
Transportation & Warehousing 2,134 68 $70,904 2.26
Construction 2,087 153 $110,934 1.78
Accommodation & Food Services 1,632 125 $20,709 0.80
Manufacturing 1,190 47 $99,484 0.65
Administrative & Waste Services 698 61 $70,279 0.53
Other Services 584 115 $48,693 0.87
Finance & Insurance 321 53 $68,679 0.35
Educational Services 307 14 $37,076 0.66
Real Estate 285 47 $68,372 0.82
Mining & Oil/Gas 209 5 $141,621 2.47
Arts & Entertainment 208 19 $21,120 0.55
Information & Technology 95 14 $58,521 0.23
Agriculture & Forestry 53 15 $29,034 0.29
Unclassified 2 4 $25,645 0.06

Schools in Seneca

3 public schools (NCES 2022-23 data).

School Level Enrollment Teachers Student/Teacher
Seneca High School High 385 38 10.1:1
Seneca Grade School North Campus Elementary 290 28 10.4:1
Seneca Elem School South Campus Middle 197 19 10.4:1
View full schools details →

Radio Stations near Seneca

1 stations within ~55 km.

Station Genre Quality
WCCQ 98.3 FM - Crest Hill, IL country MP3 64 kbps

National Parks Near Seneca

13 national parks and monuments found near Seneca.

ParkTypeFee
Buffalo Rock State Park State Park Free
Castle Rock State Park State Park Free
Channahon State Park State Park Free
Fox River State Park Free
Gebhard Woods State Park State Park Free
Illini State Park State Park Free
Lake Park Expansion State Park Free
Lowden State Park State Park Free
Matthiessen State Park State Park Free
Presidential Park State Park Free
Silver Springs State Park Free
Whitewater State Park State Park Free
William G. Stratton State Park State Park Free

Trails Near Seneca

8 trails found near Seneca.

TrailMilesSurfaceHikeBikeHorse
HENSLOW TRAIL 5.0 IMPORTED COMPACTED MATERIAL — — Yes
BLODGETT MARSH TRAIL 4.7 NAT - NATIVE MATERIAL Yes — —
ROUTE 53 TRAIL 2.7 IMPORTED COMPACTED MATERIAL — — Yes
PRAIRIE CREEK WOODS TRAIL 0.6 NAT - NATIVE MATERIAL Yes — —
PRAIRIE CREEK WOODS TRAIL 0.4 NAT - NATIVE MATERIAL Yes — —
PRAIRIE CREEK WOODS TRAIL 0.3 NAT - NATIVE MATERIAL Yes — —
HENSLOW TRAIL 0.2 IMPORTED COMPACTED MATERIAL — — Yes
PRAIRIE CREEK WOODS TRAIL 0.2 NAT - NATIVE MATERIAL Yes — —

Museums in Seneca

NameTypeAddressPhoneAnnual Revenue
REDDICK MANSION ASSOCIATIONHISTORIC PRESERVATION8154336100$91,701
FERN DELL HISTORICAL SOCIETY NFPHISTORIC PRESERVATION9 EAST FRONT STREET8156955240$31,819
GRUNDY COUNTY HISTORICAL SOCIETYHISTORIC PRESERVATION8159424880$30,411
OTTAWA HISTORICAL AND SCOUTING HERITAGE MUSEUMHISTORIC PRESERVATION1100 CANAL STREET8154319353$22,743
OTTAWA SCOUTING MUSEUMGENERAL MUSEUM8154319353$22,743
STREATORLAND HISTORICAL SOCIETY AND MUSEUMHISTORIC PRESERVATION8156722443$22,396
LASALLE COUNTY GENEALOGY GUILDHISTORIC PRESERVATION8154335261$5,691
DWIGHT HISTORICAL SOCIETYHISTORIC PRESERVATION8155841865
NORWEGIAN CENTERGENERAL MUSEUM8154347478
OLD BARN MUSEUMHISTORY MUSEUM6022849998
OTTAWA CANAL ASSOCIATIONHISTORIC PRESERVATION
SENECA HISTORICAL GUILDHISTORIC PRESERVATION
STEWARDSON HISTORICAL MUSEUMHISTORIC PRESERVATION

Libraries in Seneca

NameAddressStaffAnnual VisitsCirculationCollectionPrograms
MORRIS AREA PUBLIC LIBRARY DISTRICT604 LIBERTY STREET0.0225,801
REDDICK PUBLIC LIBRARY DISTRICT1010 CANAL STREET0.0111,212
STREATOR PUBLIC LIBRARY130 SOUTH PARK STREET0.061,556
SENECA PUBLIC LIBRARY DISTRICT210 NORTH MAIN STREET0.033,360
MARSEILLES PUBLIC LIBRARY155 EAST BLUFF STREET0.015,821
ROBERT W. ROWE PUBLIC LIBRARY DISTRICT120 EAST SI JOHNSON AVENUE0.015,644
CHARLES B. PHILLIPS PUBLIC LIBRARY DISTRICT6 NORTH JACKSON STREET0.09,120
PRAIRIE CREEK PUBLIC LIBRARY DISTRICT501 CARRIAGE HOUSE LANE0.03,582

Farmers Markets in Seneca

NameAddressSeasonHoursOrganicWebsite
3 French Hens French Country Market123 W. Illinois ave. 05/12/2018 to 10/13/2018Sat: 8:00 AM-2:00 PM;YesVisit
Main Street Farmers Market132 E Main St05/17/2014 to 10/04/2014Sat: 8:00 AM-11:00 AM;
Marseilles Farmers MarketKnudson Park on Lincoln St
North Bloomington Street Farmers Market1215 North Bloomington(Route 23)
Ottawa Area Chamber of Commerce Farmers Market100 Jackson StreetVisit
Streator Downtown Farmers Market200 North Park St06/03/2017 to 10/28/2017Sat: 9:00 AM-1:00 PM;Visit

Gas Stations in Seneca

2 gas stations within city radius — OpenStreetMap data

BP
Marathon

Breweries in Seneca

NameTypeAddressPhoneWebsite
Clayton's TapBars, Restaurant, Caterers, Restaurants, Brewery, Bar & Grills, Taverns122 W Washington St8159423811Visit
Goodfellas BarBars & Clubs, Breweries & Brew Pubs, Barbecue, Food & Entertainment, Bar & Grill Restaurants107 N Bloomington St8156726072Visit
Omars TapCocktail Lounges, Bars & Clubs, Breweries & Brew Pubs, Pub Food, Cocktail Lounge Restaurants, Food &1115 Johnson St8156734144Visit

Cell Towers in Seneca

AddressStructure TypeHeight (ft)
3025 NORTH ILLINOIS HIGHWAY 47 (70252)GTOWER97
3025 NORTH ILLINOIS HIGHWAY 47 (70252)GTOWER97
8783 Chicago Road (13569)GTOWER79
8783 Chicago Road (13569)GTOWER79
615 WEST MAZON AVENUE (113089)MTOWER60
615 WEST MAZON AVENUE (113089)MTOWER60
615 WEST MAZON AVENUE (113089)MTOWER60
615 WEST MAZON AVENUE (113089)MTOWER60
4535 WEST AIRPORT ROAD (70255)LTOWER60
4535 WEST AIRPORT ROAD (70255)LTOWER60
3005 SOUTH 2800 EAST ROAD (72540)LTOWER59
3005 SOUTH 2800 EAST ROAD (72540)LTOWER59
2753 EAST 29TH ROAD (79657)MTOWER49
2753 EAST 29TH ROAD (79657)MTOWER49

Fire Stations in Seneca

NameAddressTypeActive FirefightersVolunteersPhone
Seneca Volunteer Fire Department121 W Armour STVolunteer815-357-1600

Bridges in Seneca

LocationTypeKindYear BuiltLength (ft)Daily TrafficCondition
SlabConcrete1940245,550P
Stringer/Multi-beamSteel continuous20091,7044,750F
Box Beam (Multiple)Prestressed concrete1980673,200F
CulvertConcrete2011273,200G
Stringer/Multi-beamSteel continuous20062053,050F
Box Beam (Multiple)Prestressed concrete1980882,850P
CulvertConcrete2013252,850G
CulvertConcrete2004282,050F
Box Beam (Multiple)Prestressed concrete1965481,600P
Stringer/Multi-beamPrestressed concrete2011621,150G
Stringer/Multi-beamPrestressed concrete19601961,150F
Box Beam (Multiple)Prestressed concrete1980471,050F
Arch (Thru)Wood or Timber1995130900F
Channel BeamConcrete197537775P
Channel BeamConcrete200695250F
Channel BeamConcrete197662175P
Box Beam (Multiple)Prestressed concrete201659175F
SlabConcrete198892150G
Box Beam (Multiple)Prestressed concrete198655150G
Box Beam (Multiple)Prestressed concrete201470125G
Stringer/Multi-beamPrestressed concrete1960196100P
Channel BeamConcrete197754100P
Box Beam (Multiple)Prestressed concrete196426100F
SlabConcrete19946875G
Stringer/Multi-beamPrestressed concrete196019975F
Stringer/Multi-beamPrestressed concrete196020275F
Box Beam (Multiple)Prestressed concrete19733175F
Stringer/Multi-beamPrestressed concrete196019975F
Box Beam (Multiple)Prestressed concrete20065675F
Channel BeamConcrete19833875G
Channel BeamConcrete19755450F
CulvertConcrete continuous19933650G
Channel BeamConcrete19908050F
Channel BeamConcrete19655750F
Box Beam (Multiple)Prestressed concrete19964250F
Stringer/Multi-beamPrestressed concrete196020150F
Box Beam (Multiple)Prestressed concrete19876825G
Channel BeamConcrete19762825P

Amtrak Stations in Seneca

1 Amtrak stations.

StationAddressType
Dwight, IL401 South Columbia StreetTRAIN

Superfund Sites Near Seneca

1 EPA Superfund sites (hazardous waste cleanup locations).

SiteAddressCounty
SABIC INNOVATIVE PLASTICS US LLC2148 NORTH 2753RD ROADLA SALLE

Airports Near Seneca

50 airports within the area.

AirportIATAType
Chicago O'Hare International AirportORDLarge Airport
Dupage AirportDPAMedium Airport
7th Heaven Airport—Small Airport
Adams Restricted Landing Area Number 1—Small Airport
Adams Restricted Landing Area Number 2—Small Airport
Aero Acres Airport—Small Airport
Aeroview Airport—Small Airport
Antique Aerodrome—Small Airport
Aurora Municipal AirportAUZSmall Airport
B & C Airport—Small Airport
Barnstorm Field—Small Airport
Berns Airport—Small Airport
Bolingbrook's Clow International Airport—Small Airport
Bresson Airport—Small Airport
Brookeridge Air Park—Small Airport
Bushby RLA Restricted Landing Area—Small Airport
Chicago Glider Club Gliderport—Small Airport
Clarence C Johnson Airport—Small Airport
Classic Landings Airport—Small Airport
Cody Port RLA Restricted Landing Area—Small Airport
Colman Airport—Small Airport
Colonial Acres Airport—Small Airport
Corn Alley 2 Airport—Small Airport
Corn Alley Airport—Small Airport
Corn Field—Small Airport
Curanda Airport—Small Airport
Cushing Field Ltd Airport—Small Airport
Cwian Field—Small Airport
David Gillespie Airport—Small Airport
DeKalb Taylor Municipal Airport—Small Airport
Delhotal Airport—Small Airport
Dick Burns Farm Airport—Small Airport
Dunn Airport—Small Airport
Durin RLA Airport—Small Airport
Dwight Airport—Small Airport
Earl Barnickel Airport—Small Airport
Earlville Airport—Small Airport
Ebert Field—Small Airport
Enjoy Field—Small Airport
Ficklin-Airtech Airport—Small Airport
Flaherty Field—Small Airport
Foley Airport—Small Airport
Foote Airport—Small Airport
Friends Field—Small Airport
Frings Airport—Small Airport
Gehant Airport—Small Airport
George Airport—Small Airport
Gittleson Farms Airport—Small Airport
Gord Airport—Small Airport
Grandpas' Farm Mendota Airport—Small Airport

Police Stations in Seneca

5 police stations.

StationAddressPhone
Dwight Police DepartmentWest Chippewa Street
Grundy County Sheriff's Office
Morris City Police Department
Sheridan Police Department115 North Robinson Street
Streator Police Department204 South Bloomington Street

Grocery Stores in Seneca

5 grocery stores.

StoreTypeAddress
Casey's General Store 1665Convenience Store222 N Main St
Dollar General Store 17461Other484 N Main St
Express Lane Gas & Food Mart 66Convenience Store114 W Jackson St
Seneca Food MartGrocery Store271 S Main St
Seneca MarathonConvenience Store391 S Main St

Treatment Centers in Seneca

6 treatment centers.

CenterTypePhone
7th Fire Alcohol and Drug CounselingSubstance Abuse815-433-4924
Brightside Recovery LtdSubstance Abuse224-205-7866
Great Heights OTP - OttawaSubstance Abuse708-434-0228
Grundy County Health DepartmentBoth815-941-3404
North Central Behav Health SystemsSubstance Abuse815-223-1610
North Central Behav Health Systems - Ottawa Area OfficeBoth815-223-1610

DOL Wage Violations in Seneca

1 employers with DOL wage violations totaling $2,679 in back wages owed to 8 employees.

1
Violations
$2,679
Back Wages Owed
8
Employees Owed
Data from the U.S. Department of Labor Wage and Hour Division (WHD) enforcement actions since FY 2005.
Employer Severity Parent Company ZIP Industry Cases Back Wages Per Employee Employees
Webber's Home Improvement — — 61360 — 1 $2,679 $335 8

Churches & Religious Organizations in Seneca

5 religious organizations (IRS tax-exempt data).

NameAddress
FIRST UNITED METHODIST CHURCH OF SENECA ILLINOIS121 W LINCOLN ST
OUR SAVIORS LUTHERAN CHURCH300 E UNION ST
ROCK RUN CHURCH OF CHRIST103 VISTA DR
SENECA ASSEMBLY OF GODPO BOX 739
SENECA EVANGELICAL CHURCHPO BOX 111

Explore Near Seneca

Bigfoot Sightings
6
Eyewitness reports filed with the Bigfoot Field Researchers Organization
View all →
UFO Sightings
1
Reported UFO sightings from the National UFO Reporting Center database
View all →
Mines
1
Active and inactive mining sites tracked by the Mine Safety and Health Administration
View all →

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Get a comprehensive, print-ready PDF with all data for Seneca.

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Frequently Asked Questions About Seneca

What is the population of Seneca?

Seneca has a population of 2,525 residents and is located in Illinois. The population density is 407 people per square mile, spread across 2.7 square miles. The median age of residents is 35.2 years, which is younger than the national median of 38.9 years. The population is 46.9% female and 53.1% male.

Is Seneca expensive to live in?

Seneca has a cost of living roughly in line with the national average, with an index of 100 (baseline: 100). The median household income is $91,065, 21% above the national average of $75,149. The median home value is $206,400 (27% below the U.S. median). Renters pay a median of $988 per month, below the national average of $1,163. The home price-to-income ratio is 2.3x, indicating housing is reasonably affordable relative to local income levels.

Is Seneca safe?

Public safety is a concern in Seneca, with a violent crime rate of 649 per 100,000 / significantly above the national average of 380. However, crime tends to concentrate in certain areas, and many neighborhoods remain relatively safe. Property crime occurs at a rate of 2,509 per 100,000 (above the national average). Overall, Seneca receives a safety grade of F based on combined crime data.

What is the weather like in Seneca?

Seneca has a four-season climate with an average annual temperature of 50°F (10°C). Winter temperatures average 23°F in January, while summers reach an average of 73°F in July. The area receives 275 sunny days per year, well above the national average of 205. Annual rainfall totals 39.0 inches, with 25.0 inches of snow. Air quality is rated Good with a median Air Quality Index (AQI) of 43.

How is the job market in Seneca?

The job market in Seneca is very strong, with unemployment at just 2.5% / well below the national rate of 3.6%. The average weekly wage is $1,344. There are 1,204 business establishments in the area, including 130 restaurants and food service locations. The average commute time is 30 minutes, and 6.3% of workers work from home.

How much does housing cost in Seneca?

The median home value in Seneca is $206,400. Zillow estimates the typical home value at $246,823. For renters, the median monthly rent is $988. Fair market rent is $854 for a 1-bedroom and $1,063 for a 2-bedroom apartment. The homeownership rate is 76.6%. The average annual property tax is $6,618.

How are the schools in Seneca?

Schools in Seneca score 6.1 out of 10 on standardized testing, near the national average. 12.9% of adults in Seneca hold a bachelor's degree or higher, below the national average of 33.7%. 94.7% have completed high school. 2.2% hold a graduate or professional degree.

How healthy is Seneca?

The obesity rate in Seneca is 37.5% (above the national rate of 32.1%). 15.8% of adults are smokers. 22.8% are physically inactive. 24.4% of residents report depression. 8.1% lack health insurance. 78.7% of residents have access to exercise opportunities. The primary care physician ratio is 1:3,117.

What is transportation like in Seneca?

The average commute in Seneca is 30 minutes. 77.5% of workers drive alone to work, and 6.3% work from home.

What are the demographics of Seneca?

The racial and ethnic makeup of Seneca is 89.9% White, 1.1% Black or African American, 0.6% Hispanic or Latino. 98.1% of residents speak only English at home. 11.1% of the population are military veterans. 10.9% of residents have a disability. 95.8% have health insurance coverage.

Nearby Cities

Marseilles, IL 4,071 pop · 3.7 mi Mazon, IL 1,424 pop · 10.8 mi Morris, IL 14,775 pop · 11.2 mi Ottawa, IL 18,714 pop · 11.4 mi Sheridan, IL 2,610 pop · 16.0 mi Newark, IL 1,152 pop · 16.3 mi Streator, IL 12,274 pop · 16.6 mi Dwight, IL 3,794 pop · 17.3 mi Gardner, IL 1,319 pop · 17.4 mi Coal City, IL 5,145 pop · 17.4 mi Diamond, IL 2,900 pop · 18.9 mi Minooka, IL 12,632 pop · 19.9 mi Channahon, IL 13,854 pop · 19.9 mi Braidwood, IL 6,175 pop · 20.4 mi
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