Best States / Utah / Carbon County

Carbon County, UT · off-grid fact sheet

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

60
of 100
Major concerns

Possible, but hard and costly. The growing season is only about 101 frost-free days, so plan on cold-hardy crops and a greenhouse. The sun is strong, about 5.8 hours of full sun a day, so a smaller solar array covers a household. Typical well depths here range from 30 feet to 1,660 feet, so get a local driller's quote.

What the land says

Rain
Too dry to live on rain. Plan on a well, and on irrigating anything you grow.
About 20 inches a year (PRISM, 1991 to 2020 average)
Wells
Well depth varies a lot here. Get a local driller's quote before you offer.
Typical well depths here range from 30 feet to 1,660 feet
Growing season
Very short. A greenhouse makes the difference.
About 101 frost-free days, USDA zone 6a; last frost about June 24, first about September 30
Sun
Strong sun. A modest solar array covers a household.
About 5.8 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 to Moderate 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
Terrain
Steep. A flat house site and a driveway route will drive the cost.
Slopes average about 42%, about 7,710 feet above sea level
Soil
Expect a costlier septic system, because the ground is steep. The county's soil test decides.
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 1 mile (OpenStreetMap)

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Is it legal here?

Zoning
Carbon 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
Not priced
Depends on depth, which varies here. Get a driller's quote.
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
$32,000 to $67,000
Before the house, plus the well

Before you make an offer on land here

Well depth
Get a local driller's depth estimate.
Typical well depths here range from 30 feet to 1,660 feet.
Soil test
Get a soil test before you count on septic.
Steep ground 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

20,609 people live in Carbon County, about 13.9 per square mile. It ranks 27th of the 29 Utah counties we scored, and Utah ranks 47th of 50 states.

Emery County, UT · Duchesne County, UT · Sanpete County, UT · Wasatch County, UT · Utah County, UT · Uintah 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.