Can you live off-grid in Modoc County, California?
75
of 100
Significant challenges
Possible, but water will be hard. Only about 16 inches of rain falls a year, so you will rely on a well or hauled water. The sun is strong, about 5.6 hours of full sun a day, so a smaller solar array covers a household. The growing season is only about 103 frost-free days, so plan on cold-hardy crops and a greenhouse.
What the land says
Rain
Too dry to live on rain. Plan on a well, and on irrigating anything you grow.
About 16 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 50 feet to 330 feet
Growing season
Very short. A greenhouse makes the difference.
About 103 frost-free days, USDA zone 6b; last frost about June 14, first about September 20
Sun
Strong sun. A modest solar array covers a household.
About 5.6 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
Wildfire risk is high in places. Check the risk for the parcel you want.
U.S. Forest Service wildfire hazard map: Moderate to 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
Terrain
Flat to gentle, easy to build on.
Slopes average about 6%, about 4,660 feet above sea level
Soil
Good ground for a standard septic system. The county's soil test decides.
Loam, 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 1.5 miles (OpenStreetMap)
Check a California 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
We found no public zoning map for Modoc County, so call the county planning office with the parcel number to ask whether the land is zoned.
Building code
The California Building Standards Code (Title 24) applies statewide and every city and county must enforce it, so a new house needs a permit however remote. A county may adopt the state's optional rules for owner-built rural homes, which relax some standards but still require a permit.
Rainwater
Collecting it is allowed.
Composting toilets
Allowed with a permit and an approved unit.
Water rights
A mix of two systems. Ask the state water office before you drill a well or dam a creek.
Depends on depth, which varies here. Get a driller's quote.
Septic
$5,000 to $10,000
Standard system
Solar and batteries
$18,000 to $32,000
Sized for a modest household
Road or driveway
$10,000 to $25,000
From the nearest road to a house site
Clearing
$1,000 to $5,000
A house site, solar, and garden
Total
$34,000 to $72,000
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 50 feet to 330 feet.
Zoning
Call the county planning office with the parcel number.
There is no public zoning map, so we cannot tell whether the land is zoned.
Wildfire
Ask an insurance agent whether they will write a policy.
The U.S. Forest Service rates wildfire risk high in places.
Nearby counties
8,500 people live in Modoc County, about 2.2 per square mile. It ranks tied for 16th of the 58 California counties we scored, and California ranks 45th of 50 states.