Can you live off-grid in St. Clair County, Missouri?
96
of 100
Strong
Yes. We found no major drawback on the land. Rain is plentiful, about 44 inches a year. The ground is mostly flat and drains well, which keeps building simple.
What the land says
Rain
Rain can supply much of a household's water with a large tank. A garden mostly waters itself in normal years.
About 44 inches a year (PRISM, 1991 to 2020 average)
Wells
Typical well depth. Budget for a mid-range well.
The typical well here is about 220 feet deep; a well typically runs $9,000 to $21,000
Growing season
A full season for most vegetables.
About 199 frost-free days, USDA zone 6b; last frost about April 10, first about October 27
Sun
Good sun. Size the array and battery bank for winter.
About 5.0 hours of full sun a day, averaged over the year
Flood
Flood zones are rare here. Still, look up the parcel on FEMA's flood map.
FEMA maps no flood zones nearby
Wildfire
Low wildfire risk.
U.S. Forest Service wildfire hazard map: Very Low to Low here
Storms
Hurricanes and strong tornadoes are rare here.
NOAA: no hurricane-strength storm within 50 miles since 1975; about 1 strong (EF2 or stronger) tornado a decade within 25 miles
Terrain
Flat to gentle, easy to build on.
Slopes average about 4%, about 840 feet above sea level
Soil
Good ground for a standard septic system. The county's soil test decides.
Loam, moderately well drained (USDA soil survey). A standard system typically runs $5,000 to $10,000
Road
Paved roads are close by.
Nearest paved road usually within about 0.9 miles (OpenStreetMap)
Check a Missouri parcel, or plan the one you own
Get a free 0-100 off-grid score.
A step-by-step build plan, sizing your solar, water, garden, septic, heat, and buildings.
Is it legal here?
Zoning
Rural land here is often unzoned. Confirm with the county before you build.
Building code
No statewide building code. Counties and municipalities adopt their own or none.
Rainwater
Collecting it is allowed.
Composting toilets
Allowed.
Water rights
Owners of land along a creek or lake can make reasonable use of its water.
Drilled to about 220 feet, with pump and pressure tank
Septic
$5,000 to $10,000
Standard system
Solar and batteries
$18,000 to $34,000
Sized for a modest household
Road or driveway
$3,000 to $8,000
From the nearest road to a house site
Clearing
$1,000 to $4,000
A house site, solar, and garden
Total
$37,000 to $77,000
Before the house
Before you make an offer on land here
Zoning
Confirm with the county whether the parcel is zoned.
Rural land in Missouri is often unzoned.
Soil test
Get a soil test before you count on septic.
The county has to approve the ground before it issues a septic permit.
Road access
Confirm the parcel fronts a public road or has a recorded easement.
Without one, you may not have a legal way in.
Nearby counties
9,752 people live in St. Clair County, about 14.4 per square mile. It ranks tied for 2nd of the 114 Missouri counties we scored, and Missouri ranks 12th of 50 states.