Hunt & Live

St. Clair County, IL

252,671 residents · 658 sq mi · 384.2/sq mi · 14% rural

Climate
56.3°F
42.5" rain/yr
Water
humid
Aridity index 1.55
Hardiness
Zone 8a
Winter low ~13.3°F

About St. Clair County

St. Clair County is the ninth most populous county in Illinois. Located directly east of St. Louis, the county is part of the Metro East region of the Greater St. Louis metropolitan area in southern Illinois. As of the 2020 United States census, St. Clair County had a population of 257,400, making it the second most populous county in Illinois outside the Northern Third. Belleville is the county seat and largest city.

7
Prepper Suitability
worsebetter
National rank: #3066 of 3,109
Locator map
Location within the continental US

Prepper Assessment

Living in this area involves a mix of suburban and rural environments, with a population density of 384.2 people per square mile. The climate is classified as humid, with an annual mean temperature of 56.3°F and an average annual rainfall of 42.5 inches, suggesting a decent growing season for a variety of crops. However, the high humidity may pose challenges for certain crops. The county's USDA zone 8a indicates that it can support a range of gardening and farming activities, but land availability may be limited due to its proximity to St. Louis.

This area faces significant risks, particularly from natural hazards including heat waves and earthquakes, both ranked at 98 by FEMA. The county also experiences a high violence percentile at 88, which may raise concerns for safety. Additionally, the effective property tax rate is 2.17%, which could impact long-term affordability for potential homesteaders. With a prepper suitability score of only 9/100, the region's overall resilience to disasters is low, making it a less favorable location for those seeking self-sufficiency.

This county may be suitable for individuals who prioritize proximity to urban amenities while still wanting some rural lifestyle. Those who thrive here might have established careers in nearby cities and seek a suburban homestead. Conversely, individuals looking for a remote, low-density environment may find the population density and associated risks unappealing. The hidden gem for some could be the relatively affordable housing market, with a median home price of $158,500, but the high risks and lower suitability for self-sufficiency could be dealbreakers for serious preppers.

AI-generated analysis based on county data (climate, hazards, density, housing, economy). For general orientation only.

Key Facts

Ranked #3,074 nationally
Out of 3,109 CONUS counties for composite prepper suitability.
#102 of 102 in IL
Ranked #102 of 102 counties statewide for prepper suitability.
Dominant hazard: heat wave
FEMA ranks heat wave risk at 98/100 here — the leading natural threat.
Urban: 384/sqmi
Densely populated at 384 people per square mile.
Climate profile
Classified as humid with a 56.3°F annual mean and 42.5" of annual precipitation. USDA hardiness zone 8a.
Housing & taxes
Median home value $158,500.

Score Breakdown

Violence
97
percentile (lower = safer)
Disasters
95
percentile (lower = safer)
Density
89
percentile (lower = emptier)
Overall FEMA Risk
94.9
NRI composite (0-100)

Natural Hazard Profile (FEMA NRI)

Cold Wave 96
Drought 61
Earthquake 98
Hail 98
Hurricane 35
Heat Wave 98
Riverine Flood 95
Ice Storm 91
Landslide 84
Lightning 94
Strong Wind 54
Tornado 96
Wildfire 15
Winter Weather 87

Monthly Climate (1991–2020 normals)

Average temperature
JFMAMJ JASOND
Monthly precipitation (inches)
JFMAMJ JASOND
Summer high
88.6°F
Winter low
23.3°F
Heating degree days
4,574
Cooling degree days
1,452

Housing & Economy

Median home value
$158,500
Median HH income
$68,915
Price to income
2.3×
Property tax rate
2.17%
~$3,444/yr median

Community Profile

Median age
39.4
Homeownership
67.9%
Poverty rate
13.8%
Unemployment
5.5%

Connectivity

Broadband households
68.9%
No internet access
10.4%

Explore St. Clair County Further

Similar Counties

Data sources. Prepper scores are national percentile ranks of firearm fatalities (County Health Rankings 2024 / CDC WONDER), FEMA National Risk Index 2023 composite disaster score, and population density (ACS 2022 + TIGER 2022 land area). Climate from NOAA nClimDiv 1991–2020 normals. Hardiness zone is estimated from climate data and may differ from the official USDA PHZM. Demographics and housing from Census ACS 5-year 2022. All scores are for comparison purposes only and do not constitute advice about where to live.