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St. Clair County

MI · Pop. 160,089 · Mixed County

51/100Homestead Score

St. Clair County sits in Michigan across 721 square miles, home to 160,089 people at 222 per square mile, a more developed setting where truly rural parcels are scarcer. The agricultural economy is rated strong, built on soybeans, corn, hay. A median home price of $214,000 and an effective property tax rate of 1.17% set the cost of entry. The climate sits in USDA hardiness zone 6a with a 189-day growing season, average summer highs of 79.4°F and average winter lows of 17.2°F. Annual rainfall averages 35.3 inches, generally adequate for the region's crops and pasture. Lake Huron Medical Center is 12.1 miles away and includes an emergency room. Broadband reaches 93.1% of homes. On the hazard side, flood risk is very high, tornado risk is very high, so plan infrastructure and insurance accordingly.

Property Tax: 1.17%
Growing Season: 189 days
Broadband: 93.1%
Density: 222/sq mi

Pros

  • A long 189-day growing season in USDA zone 6a supports a wide range of crops and multiple plantings.
  • Broadband reaches 93.1% of homes, making remote work and online farm sales realistic.
  • A strong agricultural economy built on soybeans, corn, hay means local markets, equipment, and know-how are in place.
  • A low poverty rate of 11% signals a relatively stable local economy.

Cons

  • Tornado risk is very high, so a storm shelter and wind-resistant structures are practical necessities.
  • Flood risk is very high, so careful parcel siting and flood insurance are essential.
  • At 222 people per square mile, this is a developed area where finding truly rural acreage is harder and pricier.

At a glance

St. Clair County, MI is a mixed homesteading prospect — weigh the tradeoffs.

Homestead score
51/100
Median home price
$214k
Property tax
1.17%
Growing season
189 days (zone 6a)
Annual rainfall
35.3"
Broadband
93.1%
Nearest hospital
Lake Huron Medical Center, 12.1 mi

Taxes & Cost of Living

Property Tax Rate1.17%
Median Household Income$69,349
Poverty Rate11%

Land & Building

Median Home Price$214K

Climate & Growing

USDA Zone6a
Growing Season189 days
Annual Rainfall35.3 inches
Avg Summer High79.4°F
Avg Winter Low17.2°F
Top CropsSoybeans, Corn, Hay

Natural Disaster Risk

Drought1/10
Wildfire4/10
Tornado9/10
Flood9/10

Healthcare

Nearest HospitalLake Huron Medical Center (12.1 mi)
Emergency RoomYes
Healthcare Facilities4

Infrastructure & Community

Broadband Coverage93.1%

Business & Employment

Unemployment Rate5%
Ag EconomyStrong

Homesteading in St. Clair County: FAQ

What is the growing season like in St. Clair County?
St. Clair County is in USDA hardiness zone 6a with a 189-day growing season, average summer highs of 79.4°F, and average winter lows of 17.2°F. The established crops are soybeans, corn, hay.
How affordable is land and property here?
The median home price is $214,000 and the effective property tax rate is 1.17%. Per-acre raw-land prices vary widely by parcel here, so check active listings for current rates.
Is broadband internet available?
Broadband reaches 93.1% of homes, strong coverage that supports remote work for most parcels.
How close is healthcare?
Lake Huron Medical Center is 12.1 miles away and includes an emergency room; there are 4 hospitals in the county.

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Nearby counties

The closest counties to St. Clair County by distance, including across state lines.

Data sources

Verified

Figures are sourced from public datasets: U.S. Census Bureau — ACS 5-year & Gazetteer, USDA NASS Census of Agriculture, USDA Plant Hardiness Zone Map, NOAA NCEI U.S. Climate Normals (1991–2020), FEMA National Risk Index, FCC Broadband Data Collection, BLS Local Area Unemployment Statistics, HIFLD Hospitals. Always confirm specifics locally before relying on them. See our methodology for how the homestead score is calculated.