St. Clair County, Illinois
Among the top 5% of US counties for getting around.
AffordabilityAffordability: grade F, better than 5% of US counties
WeatherWeather: grade F, better than 4% of US counties
Safety & WellbeingSafety & Wellbeing: grade C, better than 43% of US counties
Getting AroundGetting Around: grade A, better than 95% of US counties
Lifestyle & ConnectivityLifestyle & Connectivity: grade B, better than 60% of US counties
- top 7% for walkability
- top 9% for airport distance
- bottom 2% for property tax rate
St. Clair County is a county in Illinois with about 257,000 residents. It grades A for getting around and F for weather. Standout strengths include walkability, airport distance, and school quality. It rates lower on natural disaster risk and property tax rate.
Official websiteco.st-clair.il.us (opens in new tab)
Climate
Hot, humid summers · Cold winters · Moderate rain · Light snow
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73%48%clearovercast
Precipitation 4.5 in2.6 in
muggy 97%dry
Livability factors
Affordability
Median Household Income$69k72nd percentile — neutral, not ranked
Cost of Living$47kbetter than 36% of US counties
Home Value$159k49th percentile — neutral, not ranked
Monthly Rent$1kbetter than 23% of US counties
Monthly Owner Costs$2kbetter than 24% of US counties
Property Tax Rate2.17%better than 2% of US counties
Income Tax5.00%better than 46% of US counties
Sales Tax8.86%better than 15% of US counties
Estimated total tax burden12.92%better than 14% of US counties
Unemployment5.7%better than 32% of US counties
Weather
Winter Temp (Jan)33°F46th percentile — neutral, not ranked
Summer Temp (Jul)79°F62nd percentile — neutral, not ranked
Annual Precipitation44.1 in52nd percentile — neutral, not ranked
Annual Snowfall11.4 inbetter than 52% of US counties
Sunny Days217 daysbetter than 29% of US counties
Summer Humidity69°Fbetter than 28% of US counties
Comfortable Days67 daysbetter than 22% of US counties
Safety & Wellbeing
Natural Disaster Risk94.9better than 5% of US counties
School Quality68.0better than 72% of US counties
Violent Crime613/100kbetter than 62% of US counties
Property Crime992/100kbetter than 46% of US counties
Community
Population256,79191st percentile — neutral, not ranked
Median Age39.431st percentile — neutral, not ranked
Racial Diversity0.5386th percentile — neutral, not ranked
Male/Female Ratio0.9514th percentile — neutral, not ranked
Political LeaningEven13th percentile — neutral, not ranked
White (%)60.1%24th percentile — neutral, not ranked
Black (%)28.1%90th percentile — neutral, not ranked
Hispanic (%)4.5%47th percentile — neutral, not ranked
Asian (%)1.6%79th percentile — neutral, not ranked
Other / Multiracial (%)5.8%84th percentile — neutral, not ranked
Getting Around
Commute Time25 minbetter than 47% of US counties
Walkability10.2/20better than 93% of US counties
Airport Distance30 mibetter than 91% of US counties
Lifestyle & Connectivity
Broadband Access86.3%better than 69% of US counties
Amenities Nearby0.74better than 33% of US counties
Park & Nature AccessGoodbetter than 68% of US counties
Frequently asked questions
- Is St. Clair County an affordable place to live?
- St. Clair County is relatively expensive. Its cost-of-living index is $47k, better than 36% of comparable areas.
- What is the median home value in St. Clair County?
- The median home value in St. Clair County is $159k, per the U.S. Census ACS (5-Year).
- What is the median household income in St. Clair County?
- Median household income in St. Clair County is $69k, per the U.S. Census ACS (5-Year).
- How much is rent in St. Clair County?
- Median gross rent in St. Clair County is $1k a month, per the U.S. Census ACS (5-Year).
- Is St. Clair County safe?
- St. Clair County is safer than most comparable areas, with a violent crime rate of 613/100k (better than 62%). Property crime is 992/100k.
- What is the weather like in St. Clair County?
- St. Clair County averages 79°F in July and 33°F in January, with 44.1 in of annual precipitation and about 217 sunny days a year.
- How are the schools in St. Clair County?
- Public-school quality in St. Clair County is above average, scoring better than 72% of comparable areas on a composite of graduation rates, spending, and student-teacher ratio.
- How long is the commute in St. Clair County?
- The average one-way commute in St. Clair County is 25 min.
Other counties in Illinois
Explore Illinois
Data sources
- EPA Smart Location Database
- EPI Family Budget Calculator
- FAA airport enplanements
- FBI Uniform Crime Reports
- FEMA National Risk Index
- MIT Election Data Lab (2020)
- NCES School Finance Survey
- NOAA Climate Normals (1991–2020)
- NOAA nClimGrid
- OpenStreetMap
- Tax Foundation + state revenue depts
- U.S. Census ACS (5-Year)
- USGS Protected Areas (PAD-US)