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Preble County, OH · off-grid fact sheet

Can you live off-grid in Preble County, Ohio?

91
of 100
Good with caveats

Yes, with one thing to plan around. Water is easy here, with about 43 inches of rain a year and wells near 80 feet. Septic will likely cost more, because rock or a hard layer sits about 36 inches down.

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 43 inches a year (PRISM, 1991 to 2020 average)
Wells
Shallow wells, so drilling should be one of the cheaper costs.
The typical well here is about 80 feet deep; a well typically runs $5,000 to $10,000
Growing season
Enough for most vegetables. Start tomatoes and peppers indoors.
About 172 frost-free days, USDA zone 6a; last frost about April 27, first about October 17
Sun
Good sun. Size the array and battery bank for winter.
About 4.6 hours of full sun a day, averaged over the year
Flood
Flood zones run along creeks and rivers here. Look up the parcel on FEMA's flood map.
FEMA maps flood zones within a quarter mile in parts of the county
Wildfire
Low wildfire risk.
U.S. Forest Service wildfire hazard map: Very Low here
Storms
Strong tornadoes pass through now and then. A safe room is worth pricing.
NOAA: no hurricane-strength storm within 50 miles since 1975; about 2 strong (EF2 or stronger) tornadoes a decade within 25 miles
Terrain
Flat, but the ground stays wet. Build on the higher, drier spot.
Slopes average about 1%, about 1,090 feet above sea level
Soil
Expect a costlier septic system, because rock or a hard layer sits about 36 inches down. The county's soil test decides.
Silt loam, well drained (USDA soil survey). A mound, sand filter, or treatment unit typically runs $10,000 to $20,000
Road
Paved roads are close by.
Nearest paved road usually within about 0.4 miles (OpenStreetMap)

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Is it legal here?

Zoning
Set by the township. County zoning applies only in a township whose voters approved it, so ask the township office which rules cover the parcel.
Building code
The Residential Code of Ohio covers every one- to three-family home statewide, but only certified city, township, or county building departments enforce it. Where none covers the parcel, there are no plans to submit or inspections to request, though the house must still meet the code.
Rainwater
Collecting it is allowed.
Composting toilets
Allowed with a permit and an approved unit.
Water rights
Owners of land along a creek or lake can make reasonable use of its water.

Look up a parcel's zoning free, or read Is it legal to live off-grid in Ohio? for permits, septic, wells, and the counties that opt out.

What it costs to set up a homestead here

Well
$5,000 to $10,000
Drilled to about 80 feet, with pump and pressure tank
Septic
$10,000 to $20,000
Mound, sand filter, or treatment unit
Solar and batteries
$18,000 to $34,000
Sized for a modest household
Road or driveway
$3,000 to $7,000
From the nearest road to a house site
Clearing
$1,000 to $4,000
A house site, solar, and garden
Total
$36,000 to $75,000
Before the house

Before you make an offer on land here

Soil test
Get a soil test before you count on septic.
Rock or a hard layer sits about 36 inches down, which can rule out a standard system.
Flood map
Look up the parcel on FEMA's flood map.
Flood zones run along creeks and rivers here. Building in one means flood insurance and extra permits.
Zoning
Call the town or township office with the parcel's address.
Set by the township. County zoning applies only in a township whose voters approved it, so ask the township office which rules cover the parcel.

Nearby counties

40,556 people live in Preble County, about 95.6 per square mile. It ranks tied for 22nd of the 88 Ohio counties we scored, and Ohio ranks 18th of 50 states.

Union County, IN · Montgomery County, OH · Wayne County, IN · Butler County, OH · Darke County, OH · Fayette County, IN · All scored Ohio counties

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Sources: FEMA flood maps, USGS and state driller well records, USGS brackish groundwater study, USDA soil survey, USGS 3DEP elevation, U.S. Forest Service wildfire hazard, USGS seismic hazard, USGS PAD-US public land, U.S. Census housing counts, USDA county land values, FCC broadband map, CMS hospital list. Rainfall: PRISM Group, Oregon State University, prism.oregonstate.edu (1991-2020 normals, 4 km grid; accessed 2026-09-17). Temperatures: PRISM Group, Oregon State University, prism.oregonstate.edu (1991-2020 temperature normals, 4 km grid; accessed 2026-09-26). Storms: NOAA hurricane tracks (HURDAT2, 1975-2025) and Storm Prediction Center tornado paths (EF2+, 1990-2025). Roads: © OpenStreetMap contributors. Data updated September 2026.