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Davis County, UT · off-grid fact sheet

Can you live off-grid in Davis County, Utah?

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of 100
Major concerns

Possible, but hard and costly. Only about 19 inches of rain falls a year, so you will rely on a well (near 490 feet here) or hauled water. The U.S. Geological Survey maps strong earthquake shaking here, so build to the seismic code.

What the land says

Rain
Too dry to live on rain. Plan on a well, and on irrigating anything you grow.
About 19 inches a year (PRISM, 1991 to 2020 average)
Wells
Deep wells. Get a driller's quote before you offer.
The typical well here is about 490 feet deep; a well typically runs $20,000 to $44,000
Growing season
A full season for most vegetables.
About 182 frost-free days, USDA zone 6b; last frost about April 23, first about October 23
Sun
Good sun. Size the array and battery bank for winter.
About 5.4 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
Wildfire risk is high in places. Check the risk for the parcel you want.
U.S. Forest Service wildfire hazard map: Very Low to Very High here
Storms
Hurricanes and strong tornadoes are rare here.
NOAA: no hurricane-strength storm within 50 miles since 1975; no strong (EF2 or stronger) tornado within 25 miles since 1990
Earthquakes
Strong shaking is possible. Build to the seismic code and brace the water tank.
USGS seismic hazard map: very high
Terrain
Flat, but the ground stays wet. Build on the higher, drier spot.
Slopes average about 1%, about 4,240 feet above sea level
Soil
Expect a costlier septic system, because the soil stays wet for long stretches. The county's soil test decides.
Loam, somewhat poorly 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 0.5 miles (OpenStreetMap)

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Is it legal here?

Zoning
Davis County zones land outside its towns and publishes its zoning map. Our free lookup shows the district for any address.
Building code
Utah has a mandatory statewide building code: new homes must meet the 2021 International Residential Code with Utah's amendments, and no county can opt out. Your county or city building department issues the permit and does the inspections; the state does not.
Rainwater
Allowed with limits. Check the state's rules before you size a tank.
Composting toilets
Allowed with a permit and an approved unit.
Water rights
Water belongs to whoever claimed it first. A new well or pond may need a state permit, and a creek may already be claimed.

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

What it costs to set up a homestead here

Well
$20,000 to $44,000
Drilled to about 490 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 $9,000
From the nearest road to a house site
Clearing
$1,000 to $4,000
A house site, solar, and garden
Total
$53,000 to $111,000
Before the house

Before you make an offer on land here

Well cost
Get a driller's quote.
Wells here run near 490 feet, so the well is a large cost.
Soil test
Get a soil test before you count on septic.
The soil stays wet, 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.

Nearby counties

373,207 people live in Davis County, about 1149.3 per square mile. It ranks tied for 23rd of the 29 Utah counties we scored, and Utah ranks 47th of 50 states.

Weber County, UT · Salt Lake County, UT · Morgan County, UT · Cache County, UT · Summit County, UT · Box Elder County, UT · All scored Utah 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.