Can you live off-grid in Horry County, South Carolina?
83
of 100
Good with caveats
Yes, but hurricanes will be the challenge. NOAA counts six hurricane-strength storms within 50 miles since 1975, so build to the wind code and plan for long outages. Rain is plentiful, about 54 inches a year. The U.S. Forest Service rates wildfire risk high in parts of the county, so plan cleared ground around the house.
What the land says
Rain
Rain can supply much of a household's water with a large tank. The sandy soil dries fast, so plan to water the garden.
About 54 inches a year (PRISM, 1991 to 2020 average)
Wells
Typical well depth. Budget for a mid-range well.
The typical well here is about 280 feet deep; a well typically runs $11,000 to $24,000
Growing season
A full season for most vegetables.
About 236 frost-free days, USDA zone 8b; last frost about March 22, first about November 11
Sun
Good sun. Size the array and battery bank for winter.
About 5.2 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 in places
Wildfire
Wildfire risk is high in parts of the county. Check the risk for the parcel you want.
U.S. Forest Service wildfire hazard map: Very Low to High here
Storms
Expect about four hurricanes within 50 miles over 30 years. Build to the wind code and keep a week of fuel and water.
NOAA: six hurricane-strength storms within 50 miles since 1975; about 1.0 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 40 feet above sea level
Soil
Sandy and fast-draining. Septic may need an extra treatment step, and garden beds need compost to hold water. The county's soil test decides.
Sand, 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 0.7 miles (OpenStreetMap)
Check a South Carolina 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
Horry County zones land outside its towns and publishes its zoning map. Our free lookup shows the district for any address.
Building code
South Carolina requires every county and city to enforce the statewide building codes (the International Residential Code with state changes for houses), so a new house needs a permit and inspections. A county may be exempt for up to five years at a time by declaring it cannot afford the service.
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 280 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 $7,000
From the nearest road to a house site
Clearing
$1,000 to $4,000
A house site, solar, and garden
Total
$38,000 to $78,000
Before the house
Before you make an offer on land here
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.
Soil test
Get a soil test before you count on septic.
Sandy ground drains fast, and some counties require an extra treatment step.
Wildfire
Ask an insurance agent whether they will write a policy.
The U.S. Forest Service rates wildfire risk high in parts of the county.
Nearby counties
397,478 people live in Horry County, about 350.8 per square mile. It ranks tied for 40th of the 46 South Carolina counties we scored, and South Carolina ranks 10th of 50 states.