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Colorado County, TX · off-grid fact sheet

Can you live off-grid in Colorado County, Texas?

89
of 100
Good with caveats

Yes, with two things to plan around. The growing season runs about 288 frost-free days, long enough for a spring and a fall garden. We found no public well records here, so price a test well early. Flood zones cover parts of the county, so look up any parcel on FEMA's flood map before you offer.

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 44 inches a year (PRISM, 1991 to 2020 average)
Wells
Well depth is unknown here. Ask the seller for the well log, or price a test well, before you offer.
No well depths in the public records for this area
Growing season
Long enough for a spring and a fall garden.
About 288 frost-free days, USDA zone 9a; last frost about February 19, first about November 29
Sun
Good sun. Size the array and battery bank for winter.
About 5.3 hours of full sun a day, averaged over the year
Flood
Flood zones cover parts of the county. Look up any parcel on FEMA's flood map before you offer.
FEMA maps flood zones in parts of the county
Wildfire
Low wildfire risk.
U.S. Forest Service wildfire hazard map: Very Low here
Storms
Hurricanes and strong tornadoes are rare here.
NOAA: one hurricane-strength storm within 50 miles since 1975; about 0.8 strong (EF2 or stronger) tornadoes a decade within 25 miles
Terrain
Flat to gentle, easy to build on.
Slopes average about 3%, about 220 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 0.6 miles (OpenStreetMap)

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Is it legal here?

Zoning
None. Texas counties cannot zone rural land, though septic, well, and floodplain rules still apply.
Building code
Texas state law applies the International Residential Code only inside city limits, so a house on unincorporated county land usually has no building code or permit. A county may opt in to require it, checked by an inspector the builder hires, but it cannot require approval before you build or charge a fee.
Rainwater
Collecting it is allowed.
Composting toilets
Allowed.
Water rights
A mix of two systems. Ask the state water office before you drill a well or dam a creek.

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

What it costs to set up a homestead here

Well
Not priced
No well records nearby. Price a test well.
Septic
$5,000 to $10,000
Standard system
Solar and batteries
$20,000 to $35,000
Sized for a modest household
Road or driveway
$2,000 to $7,000
From the nearest road to a house site
Clearing
$1,000 to $3,000
A house site, solar, and garden
Total
$28,000 to $54,000
Before the house, plus the well

Before you make an offer on land here

Well log
Ask the seller for the well log, or look in the state's well records.
We found no public well records for this area.
Flood map
Look up the parcel on FEMA's flood map.
Flood zones cover parts of the county. 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.

Nearby counties

21,117 people live in Colorado County, about 22 per square mile. It ranks tied for 64th of the 254 Texas counties we scored, and Texas ranks 34th of 50 states.

Austin County, TX · Lavaca County, TX · Fayette County, TX · Wharton County, TX · Washington County, TX · Waller County, TX · All scored Texas 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.