Seneca, IL

Full City Profile · Illinois · Grundy County County

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 $257,585 Zillow
$988 Median Rent 21.3% income on rent
50°F Avg Temperature
130 Violent Crime/100K 565 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.2 / 5.0
$91,065 median income, 4.2% unemployment
A+
Affordability
5.0 / 5.0
$206,400 home value, $988/mo rent
F
Safety
1.0 / 5.0
130 violent crimes/100K
C
Education
2.0 / 5.0
12.9% bachelor's degree or higher

Seneca, IL

At a Glance

Median Income
$91,065
21% above
$42,714 per capita
Home Value
$206,400
27% below
Zillow: $257,585
Median Rent
$988/mo
15% below
21.3% of income on rent
Violent Crime
130/100K
66% below
565/100K property
Bachelor's Degree+
12.9%
62% below
94.7% high school+
Unemployment
4.2%
17% above
11.1% poverty rate
Obesity Rate
37.5%
17% above
15.8% smoking rate
Avg Temperature
50°F

How Seneca Compares to the U.S. Average

Each bar shows Seneca's value as a percentage of the national average (100% = U.S. avg)

Income
121%
Home Value
73%
Rent
85%
Poverty
90%
Bachelor's
38%
Unemployment
117%
Crime
34%
Thin vertical line = U.S. national average (100%)

Is Seneca a Good Place to Live?

B
3.1 / 5.0 - Good
Based on economy, affordability, safety, and education metrics compared to national averages.

Economy & Jobs

Seneca residents earn a median household income of $91,065 , which is 21% above the national average of $75,149. Per capita income is $42,714. The unemployment rate stands at 4.2% (17% above the U.S. rate of 3.6%). 11.1% of residents live below the poverty line. The area is home to 1,204 business establishments, including 130 restaurants.

Housing & Cost of Living

The median home value in Seneca is $206,400 , 27% below the national median of $281,900. Zillow estimates the typical home at $257,585. Median rent is $988/month, with 21.3% of renters spending more than 30% of income on housing. The cost of living index is 100.0 (100 = national average). The median home was built in 1976.

Safety & Crime

Seneca reports 130 violent crimes per 100,000 residents , which is 66% below the national average of 380/100K. Property crime is 565/100K.

Education

12.9% of adults in Seneca hold a bachelor's degree or higher (62% below the national average). 94.7% have completed high school. Local schools score 6.1/10 in standardized testing.

Climate & Weather

Seneca has an average annual temperature of 50°F (10°C). Winters average 23°F in January while summers reach 73°F in July. Annual precipitation totals 39.0 inches.

Data Overview

People

Population2,525
Median Age35.2 yrs
Density407/mi²
Male / Female53% / 47%
Foreign Born1.9%
Veterans11.1%

Economy

A
Median Income$91,065
Per Capita$42,714
Unemployment4.2%
Poverty11.1%
County GDP$6,044M
Avg Weekly Wage$1,344

Housing

A+
Home Value$206,400
Rent$988
Ownership76.6%
Zillow$257,585
Housing Units1,002
Rent Burden21.3%

Crime

F
Violent130/100K
Property565/100K

Health

Obesity37.5%
Diabetes9.7%
Smoking15.8%
Heart Disease5.6%
Premature Death7,576/100K

Climate

Avg Temp50°F
Rain39.0 in/yr
Elevation508 ft

Education

C
Bachelor's+12.9%
High School+94.7%
Graduate+2.2%
School Score6.1/10

Community

2024 VoteR 64% / D 34%
Commute30 min
Broadband92.2%
Internet Speed63 Mbps
EV Stations1
Libraries3

Did You Know?

Seneca was founded in 1854.
The median home in Seneca was built in 1976.
The nearest airport is Joliet Regional (27 miles).
The Gini coefficient (income inequality) is 0.396 (U.S. avg: 0.490).
Natural hazard risk is rated "Relatively Low" by FEMA.
9.0% of the population has a disability.
There are 130 restaurants in the area.
The county recorded 5 fatal vehicle crashes.