Home Value
$114,300
59% lower than US avg
Violent Crime
0/100K
100% lower than US avg
Bachelor's+
18.4%
45% lower than US avg
Obesity Rate
45.8%
43% higher than US avg
Unemployment
0.0%
100% lower than US avg
Poverty Rate
40.0%
223% higher than US avg
How Interior Compares to the U.S. Average (100% = U.S. avg)
People
Population53
Median Age54.6 yrs
Density40/mi²
Male / Female55% / 45%
Largest GroupWhite 85%
Veterans53.0%
Economy
Per Capita$24,862
Unemployment0.0%
Poverty40.0%
County GDP$107M
Housing
Home Value$114,300
Ownership84.6%
Zillow$321,470
Housing Units34
Rent Burden24.5%
Crime
C+
Violent0/100K
Property395/100K
Health
Obesity45.8%
Smoking36.4%
Depression21.7%
Heart Disease10.8%
Climate
Avg Temp50°F (10°C)
AQI35 (Good)
Rain19.6 in/yr
Sunny Days302/yr
Elevation2,382 ft (726 m)
Education
C
Bachelor's+18.4%
High School+95.9%
Graduate+10.6%
School Score4.05
Community
2024 VoteR 67% / D 32%
Broadband26.0%
EV Stations2
Libraries2
Is Interior a Good Place to Live?
Based on current data, Interior receives an overall livability score of 2.5 out of 5.0, earning a grade of C+. Key strengths include low unemployment, low crime rates, affordable housing, abundant sunshine. Areas to be aware of include an elevated poverty rate, high obesity rates. Interior has some notable strengths but also faces challenges that prospective residents should consider.
Economy & Jobs
The job market is very strong with unemployment at just 0.0%. The poverty rate of 40.0% exceeds the national average of 12.4%, indicating economic hardship for a significant portion of the population.
Cost of Living & Housing
The median home value in Interior is $114,300, 59% below the national median / offering relatively affordable homeownership.
Safety & Crime
Interior is a very safe community with a violent crime rate of 0 per 100,000 residents / well below the national average of 380. Property crime occurs at a rate of 395 per 100,000, 80% below the national average.
Education
18.4% of residents hold a bachelor's degree, below the national average of 33.7%. 95.9% have completed high school. School test scores average 4/10, below typical benchmarks.
Climate & Weather
Interior experiences four distinct seasons with an average temperature of 50°F. Winters average 26°F in January while summers reach 77°F in July. With 302 sunny days per year, residents enjoy well above the national average of sunshine. Annual precipitation totals 19.6 inches, including 38.0 inches of snow. Air quality is rated Good with a median AQI of 35.
Interior has a population of 53 with a density of 40 people per square mile, spread across 1.3 square miles. The median age is 54.6 years, 40% older than the national median of 38.9. The gender split is 45.3% female and 54.7% male. The city is predominantly White (84.9%), with 15.1% Hispanic. English is the primary language spoken at home by 100% of residents. 53.0% of the population are veterans, above the national rate of 6.0%. 13.5% of residents have a disability. 67.3% have health insurance coverage.
Population
54.6yrs
Median Age
40% above US avg
Language Spoken at Home
English Only
100.0%
27% above US avg
Spanish
0.0%
100% below US avg
Per capita income is $24,862 (below the $39,052 national figure). The average weekly wage is $794, 45% lower than the U.S. average. The unemployment rate is 0.0% (below the 3.6% US average). 40.0% of residents live below the poverty line, higher than the national rate of 12.4%. The area has 83 business establishments, including 10 restaurants. The cost of living index is 88.6, below the national baseline of 100 / offering relatively affordable living. 0.0% of workers work from home (below the 15.2% national rate).
Income
| |
| Per Capita Income | $24,862 |
| Avg Weekly Wage | $794 |
| IRS Avg AGI | $48,767 |
| Gini Index | 0.512 (0=equal, 1=unequal) |
Employment & Poverty
| Unemployment | 0.0% |
| 100% below US avg |
| Poverty Rate | 40.0% |
| 223% above US avg |
| Establishments (County) | 83 |
| County GDP | $107M |
Business (County)
| Restaurants | 10 |
| Healthcare | 3 |
| Retail | 13 |
| Manufacturing | 3 |
Tax & Cost of Living
| |
| Cost of Living | 88.60 (100=avg) |
Commute & Transportation
| Drive Alone | 69.2% |
| Public Transit | 0.0% |
| Work from Home | 0.0% |
The median home value in Interior is $114,300, 59% below the national median of $281,900. Zillow estimates the typical home value at $321,470, higher than the Census estimate. Fair market rent ranges from $784 for a one-bedroom to $990 for a two-bedroom apartment. 84.6% of housing units are owner-occupied (above the 65.4% national rate). There are 34 total housing units in the city. The median year a home was built is 1954. 24.5% of renters spend 30% or more of their income on housing.
Home Values
| Census Median | $114,300 |
| 59% below US avg |
| Zillow ZHVI | $321,470 |
Real Estate Market (Redfin)
Rental Costs
HUD Fair Market Rent
| Studio | $691 |
| 1 Bedroom | $784 |
| 2 Bedrooms | $990 |
| 3 Bedrooms | $1,295 |
| 4 Bedrooms | $1,540 |
Ownership & Property
| Homeownership | 84.6% |
| Owner-Occupied | 84.6% |
| Renter-Occupied | 15.4% |
| Housing Units | 34 |
| Median Year Built | 1954 |
Property Tax
In Interior, 45.8% of adults are obese, above the national rate of 32.1%. 22.4% have diabetes (above the 10.5% national rate). Heart disease affects 10.8% of residents, above the national average. 41.5% have high blood pressure. 36.4% are current smokers (above the 14.0% national rate). 15.5% report binge drinking. 39.4% are physically inactive, above the national average. 21.7% report depression. 23.0% experience frequent mental distress. The dentist ratio is 1:1,410. 23.0% of residents have access to exercise opportunities. The food environment index is 2.0 out of 10.
Health Metrics: Interior vs U.S. Average (%)
Chronic Conditions
| Obesity | 45.8% |
| 43% above US avg |
| Diabetes | 22.4% |
| Heart Disease | 10.8% |
| High Blood Pressure | 41.5% |
| Asthma | 14.4% |
| COPD | 12.5% |
| Cancer | 6.0% |
| Stroke | 6.8% |
Behaviors & Mental Health
| Smoking | 36.4% |
| 160% above US avg |
| Binge Drinking | 15.5% |
| Physical Inactivity | 39.4% |
| Depression | 21.7% |
| Mental Distress | 23.0% |
| Physical Distress | 21.9% |
| Short Sleep | 39.9% |
Healthcare Access
| Insurance Rate | 67.3% |
| |
| Dentists | 1:1,410 |
| Mental Health | 1:1,388 |
| Checkup Rate | 73.2% |
| Dental Visits | 43.4% |
| Premature Death | 24,380/100K |
Food & Exercise
| Food Environment | 2.0/10 |
| Exercise Access | 23.0% |
| Healthcare Facilities | 3 |
Interior has a violent crime rate of 0 per 100,000 residents, 100% below the national average of 380. Property crime stands at 395 per 100,000, 80% below the U.S. average. The county recorded 1 fatal traffic crashes. Overall, Interior receives a safety grade of C+.
Crime Rates: Interior vs U.S. Average (per 100,000)
Violent Crime
| Total Violent | 0.0/100K |
| 100% below US avg |
| |
Property Crime
| Total Property | 395.3/100K |
| 80% below US avg |
Traffic Safety
| Fatal Crashes (County/yr) | 1 |
| Avg Accident Severity | 0.0 / 4.0 |
Safety Score
| Safety Grade | C+ |
| Safety Score | 2.5 / 5.0 |
Interior experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 26°F in January while summers reach 77°F in July. The area gets 302 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 19.6 inches (drier than the 38-inch national average). The area receives 38.0 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 35. The city sits at an elevation of 2,382 feet.
Temperature
26°F Jan (-4°C)
77°F Jul (25°C)
| Annual Average | 50.4°F |
| 7% below US avg |
| January Average | 26°F (-4°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 302 days/yr |
Geography
| Elevation | 2,382 ft (726 m) |
| Area | 1.3 sq mi (3.5 km²) |
| Population Density | 40/sq mi |
| Coordinates | 43.7273°N, 101.9833°W |
| Timezone | America/Chicago |
| County | Jackson County County |
| Nearest Airport | Rapid City Regional (RAP)
58 miles away |
Precipitation & Snow
Annual Rainfall
19.6"
48% below US avg
Wettest Month (Jun)
3.03"
Air Quality
| AQI Median | 35.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0479 ppm |
| PM2.5 (Fine Particles) | 7.6 μg/m³ |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 10.2 / 100 |
| Social Vulnerability | 99.7 / 100 |
| Community Resilience | 0.4 / 100 |
Hazard Breakdown
| Tornado |
Very Low |
| Earthquake |
Very Low |
| Wildfire |
Relatively Low |
| Flood |
Very Low |
| Hail |
Relatively Low |
| Strong Wind |
Relatively Low |
| Heat Wave |
Very Low |
| Winter Weather |
Relatively Moderate |
| Lightning |
Very Low |
| Ice Storm |
Relatively Moderate |
| Drought |
Relatively Low |
| Cold Wave |
Relatively Low |
| Landslide |
Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
23 earthquakes (M2.5+) within 150 km since 1990.
Strongest: M4.0. Most recent: M2.6 on Jun 8, 2025.
| May 25, 2003 |
10 km SSW of Martin, South Dakota |
M4.0 |
73 km |
| Jan 28, 1990 |
8 km N of Manderson-White Horse Creek, South Dakota |
M4.0 |
62 km |
| Feb 6, 1996 |
13 km WNW of Hill City, South Dakota |
M3.7 |
143 km |
| Mar 9, 2025 |
7 km W of Fairburn, South Dakota |
M3.6 |
106 km |
| Dec 12, 2013 |
10 km WSW of Hermosa, South Dakota |
M3.5 |
108 km |
| Mar 26, 2021 |
10 km E of Edgemont, South Dakota |
M3.4 |
146 km |
| Aug 9, 2011 |
2 km S of Fort Pierre, South Dakota |
M3.3 |
145 km |
| Aug 5, 2022 |
4 km ENE of Draper, South Dakota |
M3.2 |
122 km |
| Mar 2, 1990 |
7 km N of Manderson-White Horse Creek, South Dakota |
M3.2 |
63 km |
| Jul 12, 1998 |
7 km E of Corn Creek, South Dakota |
M3.1 |
73 km |
| Feb 20, 1993 |
21 km WSW of Cody, Nebraska |
M3.1 |
108 km |
| Feb 7, 2007 |
11 km WSW of Wasta, South Dakota |
M3.1 |
59 km |
| Jun 18, 1998 |
23 km S of Chadron, Nebraska |
M3.1 |
148 km |
| Jan 16, 2012 |
25 km E of Buffalo Gap, South Dakota |
M3.0 |
86 km |
| Jun 16, 2024 |
7 km NNE of Buffalo Gap, South Dakota |
M2.9 |
105 km |
| Apr 4, 2024 |
19 km SW of Interior, South Dakota |
M2.8 |
19 km |
| Jul 17, 2016 |
15 km NNE of Oelrichs, South Dakota |
M2.8 |
106 km |
| Mar 18, 1994 |
4 km SSW of Hot Springs, South Dakota |
M2.8 |
128 km |
| Apr 24, 2007 |
23 km WSW of Hay Springs, Nebraska |
M2.7 |
149 km |
| Jun 8, 2025 |
19 km NW of Wasta, South Dakota |
M2.6 |
72 km |
Source: USGS (M2.5+, 1990–2025)
Tornado History
173 tornadoes (EF0+) within 100 km since 1950.
Strongest: EF3. Total: 14 injuries.
| Date |
Rating |
Distance |
Fatalities |
| Jun 6, 1963 |
EF3 |
67 km |
0 |
| Aug 6, 1956 |
EF3 |
38 km |
0 |
| Jun 12, 2022 |
EF2 |
95 km |
0 |
| Jun 12, 2022 |
EF2 |
86 km |
0 |
| May 24, 2010 |
EF2 |
90 km |
0 |
| Jul 3, 2003 |
EF2 |
65 km |
0 |
| Jun 4, 1999 |
EF2 |
89 km |
0 |
| Jun 7, 1994 |
EF2 |
58 km |
0 |
| Jun 15, 1992 |
EF2 |
42 km |
0 |
| Mar 29, 1982 |
EF2 |
62 km |
0 |
| Jun 25, 1978 |
EF2 |
91 km |
0 |
| Jul 10, 1977 |
EF2 |
95 km |
0 |
| May 19, 1974 |
EF2 |
80 km |
0 |
| Jul 26, 1964 |
EF2 |
47 km |
0 |
| May 2, 1964 |
EF2 |
25 km |
0 |
| Aug 31, 1959 |
EF2 |
77 km |
0 |
| Jun 14, 1953 |
EF2 |
48 km |
0 |
| Jun 29, 2019 |
EF1 |
54 km |
0 |
| Jul 6, 2016 |
EF1 |
92 km |
0 |
| May 28, 2013 |
EF1 |
51 km |
0 |
Source: NOAA SPC (EF0+, 1950–2024)
Wildfire History
20 wildfires (100+ acres) within 100 km.
Largest: WELLNITZ (77,277 ac, 2012).
| Year |
Name |
Acres |
Distance |
| 2012 |
WELLNITZ |
77,277 |
100 km |
| 2016 |
COTTONWOOD CA |
41,775 |
22 km |
| 2012 |
LONGHORN COMPLEX |
41,443 |
95 km |
| 2007 |
STAMPEDE |
22,848 |
90 km |
| 2006 |
WHITE OWL |
20,022 |
100 km |
| 1985 |
YELLOWBEAR |
19,212 |
45 km |
| 2016 |
FREEMAN |
19,121 |
89 km |
| 1988 |
LIGHTNING |
18,426 |
94 km |
| 1985 |
4TH OFJULY |
18,177 |
90 km |
| 2012 |
HAY CANYON |
17,815 |
94 km |
| 2024 |
POWER DAM ROAD |
15,047 |
94 km |
| 2000 |
HASNOHORSE |
13,420 |
82 km |
| 2022 |
CASINO |
11,583 |
99 km |
| 1987 |
GRASS CK3 |
11,125 |
71 km |
| 2000 |
DECKER |
10,883 |
50 km |
| 2000 |
PEPPER CREEK |
8,915 |
76 km |
| 2021 |
DRY CREEK CA |
8,123 |
92 km |
| 2002 |
WANNA |
7,699 |
83 km |
| 2002 |
COTTONWOOD |
6,696 |
51 km |
| 1985 |
CALICO |
6,475 |
83 km |
Source: NIFC/IRWIN (100+ acres)
Monthly Weather
| Month |
Avg Temperature |
Precipitation |
Summary |
| January |
26°F (-4°C) |
0.3 in |
Driest |
| February |
28°F (-2°C) |
0.4 in |
|
| March |
36°F (2°C) |
1.1 in |
|
| April |
47°F (8°C) |
1.8 in |
|
| May |
58°F (15°C) |
2.8 in |
|
| June |
68°F (20°C) |
3.0 in |
Wettest |
| July |
77°F (25°C) |
2.4 in |
Warmest |
| August |
74°F (23°C) |
1.6 in |
|
| September |
63°F (17°C) |
1.2 in |
|
| October |
50°F (10°C) |
1.3 in |
|
| November |
34°F (1°C) |
0.6 in |
|
| December |
25°F (-4°C) |
0.4 in |
Coldest |
Interior has a seasonal temperature swing of 52°F / from 25°F in December to 77°F in July. Total annual precipitation is 16.9 inches, with June being the wettest month (3.0") and January the driest (0.3").
Average costs for common services in Interior. Prices are estimated based on regional cost of living data and may vary by provider.
Healthcare
| Doctor Visit (Primary Care) |
$222 ($133–$354) |
| Specialist Visit |
$310 ($177–$487) |
| Urgent Care Visit |
$177 ($89–$310) |
| Emergency Room Visit |
$1,949 ($709–$4,430) |
| Dental Cleaning |
$115 ($66–$177) |
| Dental Filling |
$222 ($133–$354) |
View all 40 services
Auto Repair
| Oil Change (Conventional) |
$40 ($22–$66) |
| Oil Change (Synthetic) |
$66 ($44–$106) |
| Brake Pad Replacement |
$266 ($133–$443) |
| Tire Rotation |
$35 ($18–$66) |
| New Tires (Set of 4) |
$532 ($354–$886) |
| Battery Replacement |
$177 ($89–$310) |
View all 18 services
Home Services
| Plumber (Per Hour) |
$89 ($53–$133) |
| Electrician (Per Hour) |
$80 ($44–$124) |
| HVAC Repair |
$354 ($133–$709) |
| HVAC System Install |
$6,202 ($3,544–$10,632) |
| Roof Repair |
$886 ($354–$1,772) |
| Roof Replacement |
$7,974 ($4,873–$13,290) |
View all 25 services
Legal
| Divorce (Uncontested) |
$1,329 ($443–$3,101) |
| Divorce (Contested) |
$13,290 ($4,430–$26,580) |
| DUI Defense |
$4,430 ($1,772–$8,860) |
| Bankruptcy (Chapter 7) |
$1,329 ($709–$2,658) |
| Will Preparation |
$443 ($177–$886) |
| Trust Preparation |
$2,215 ($886–$4,430) |
View all 12 services
Personal Care
| Men's Haircut |
$22 ($13–$40) |
| Women's Haircut |
$49 ($27–$89) |
| Hair Coloring (Full) |
$133 ($66–$222) |
| Manicure |
$22 ($13–$40) |
| Pedicure |
$35 ($22–$58) |
| Massage (1 Hour) |
$71 ($44–$115) |
View all 12 services
Food & Grocery
| Gallon of Milk (per gallon) |
$3.63 ($2.66–$4.87) |
| Dozen Eggs (per dozen) |
$3.10 ($2.22–$4.43) |
| Loaf of Bread |
$3.37 ($2.22–$4.87) |
| Chicken Breast (per lb) |
$3.99 ($2.66–$5.76) |
| Ground Beef (per lb) |
$4.87 ($3.54–$6.65) |
| Rice (per lb) |
$0.89 ($0.53–$1.59) |
View all 20 services
Utilities
| Electricity (Monthly) |
$124 ($71–$222) |
| Natural Gas (Monthly) |
$62 ($27–$133) |
| Water/Sewer (Monthly) |
$62 ($35–$106) |
| Internet (Monthly) |
$62 ($35–$89) |
| Cell Phone Plan (Monthly) |
$58 ($27–$89) |
| Cable TV (Monthly) |
$75 ($44–$133) |
View all 8 services
Transportation
| Monthly Parking (Downtown) |
$177 ($66–$443) |
| Car Insurance (Annual) |
$1,772 ($1,063–$3,101) |
| Bus Pass (Monthly) |
$62 ($27–$115) |
| Taxi/Uber (5-Mile Ride) |
$13 ($7.09–$22) |
| Car Registration (Annual) |
$89 ($27–$222) |
| Driver's License Renewal |
$27 ($13–$66) |
View all 8 services
Education & Childcare
| Daycare (Infant, Monthly) |
$1,063 ($532–$2,215) |
| Daycare (Toddler, Monthly) |
$886 ($443–$1,772) |
| After-School Care (Monthly) |
$354 ($177–$620) |
| Tutoring (Per Hour) |
$44 ($22–$89) |
| SAT/ACT Prep Course |
$886 ($354–$2,215) |
| Private School (K-12, Annual) |
$11,075 ($4,430–$26,580) |
View all 8 services
Pets
| Vet Visit (Routine Checkup) |
$53 ($27–$89) |
| Dog Vaccination (Annual) |
$89 ($44–$177) |
| Dog Grooming |
$53 ($27–$89) |
| Pet Boarding (Per Night) |
$35 ($18–$66) |
| Dog Spay/Neuter |
$266 ($133–$443) |
| Cat Spay/Neuter |
$177 ($89–$354) |
View all 9 services
Childcare
| Center-Based (monthly) |
| Infant | $520 |
| Toddler | $520 |
| Preschool | $494 |
| Family Childcare (monthly) |
| Infant | $433 |
| Toddler | $433 |
| Preschool | $433 |
Source: DOL Women's Bureau (2022)
Frequently Asked Questions About Interior
What is the population of Interior?
Interior has a population of 53 residents and is located in South Dakota. The population density is 40 people per square mile, spread across 1.3 square miles. The median age of residents is 54.6 years, which is older than the national median of 38.9 years. The population is 45.3% female and 54.7% male.
Is Interior expensive to live in?
Interior is more affordable than the national average, with a cost of living index of 88.6 / below the baseline of 100. The median home value is $114,300 (59% below the U.S. median).
Is Interior safe?
Interior is considered a very safe city with a violent crime rate of 0 per 100,000 residents, well below the national average of 380. Property crime occurs at a rate of 395 per 100,000 (below the national average). Overall, Interior receives a safety grade of C+ based on combined crime data.
What is the weather like in Interior?
Interior has a four-season climate with an average annual temperature of 50°F (10°C). Winter temperatures average 26°F in January, while summers reach an average of 77°F in July. The area receives 302 sunny days per year, well above the national average of 205. Annual rainfall totals 19.6 inches, with 38.0 inches of snow. Air quality is rated Good with a median Air Quality Index (AQI) of 35.
How is the job market in Interior?
The job market in Interior is very strong, with unemployment at just 0.0% / well below the national rate of 3.6%. The average weekly wage is $794. There are 83 business establishments in the area, including 10 restaurants and food service locations.
How much does housing cost in Interior?
The median home value in Interior is $114,300. Zillow estimates the typical home value at $321,470. The homeownership rate is 84.6%.
How are the schools in Interior?
Schools in Interior have an average test score of 4 out of 10, below typical national benchmarks. Families may want to research individual school ratings. 18.4% of adults in Interior hold a bachelor's degree or higher, below the national average of 33.7%. 95.9% have completed high school. 10.6% hold a graduate or professional degree.
How healthy is Interior?
The obesity rate in Interior is 45.8% (above the national rate of 32.1%). 36.4% of adults are smokers. 39.4% are physically inactive. 21.7% of residents report depression. 23.0% of residents have access to exercise opportunities.
What are the demographics of Interior?
The racial and ethnic makeup of Interior is 84.9% White, 15.1% Hispanic or Latino. 100% of residents speak only English at home. 53.0% of the population are military veterans. 13.5% of residents have a disability. 67.3% have health insurance coverage.
All Countries
