
Short-term kit![]()
RA400 short-term liquid scintillation radon test kit, lab fee included
- Lab fee included
Method: Liquid scintillation
In home: 48 to 96 hours
Locations and reports
EPA puts Andrews County in Zone 3, its lowest radon zone. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
13.3%
Lea County
2 of 6 neighbours have 30+ tests, 2007 to 2016
Nearest county
1.0%
Midland County, 47 miles
Share at 4+ pCi/L, 100 tests, 2007 to 2016
Ground above low
0.1%
27.2 pts below Texas
Share of land USGS rates moderate or high potential
Tests reported
0
None published
A home here needs its own test
EPA radon zone
Zone 3
Lower potential
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Andrews County
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 4.0 pCi/L
At or above 4 pCi/L
This result is at or above 4 pCi/L. EPA recommends fixing a home when the radon level is 4 pCi/L or higher.
The data
Andrews County, At a glance
Predicted: EPA radon zone
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
CDC has published no radon test figures for Andrews County. Of the counties bordering it, 2 have a figure over the 2007 to 2016 laboratory totals: Lea County, NM reported the largest share at or above 4 pCi/L, 13.3%, and Midland County the smallest, 1.0%.
Andrews County, Compared
No CDC figure names Andrews County, in any year or ten-year total; over the 2007 to 2016 laboratory totals, the agency's counts reach 140 Texas counties without it. Pooled across 140 Texas counties, 10.4% of reported tests reached that level; across every county in the country with a figure, 35.8%.
Of the counties bordering it, 2 have a figure over the 2007 to 2016 laboratory totals: Lea County, NM reported the largest share at or above 4 pCi/L, 13.3%, and Midland County the smallest, 1.0%. Farther out, Lubbock County (102 miles away) at 57.8%, Randall County (188 miles away) at 71.4% and El Paso County (214 miles away) at 0.0% have figures too. Statewide for the same period, Randall County reported the highest share (71.4%) and Nueces County the lowest (0.0%).
EPA's 1993 map puts Andrews County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 100% of the county's land low radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Andrews County, Geology
Most of the ground under Andrews County is one class on USGS's geologic map: 99.9% of its land is low radon potential, with 0.1% moderate. All of it lies in the area the map calls Southern High Plains and Plateaus, to which USGS gives a radon index of 7, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Southern High Plains and Plateaus | Paleozoic and Mesozoic sandstone, limestone, shale. | Low | 7 | 99.9% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Across Texas 0.5% of the land is rated high; none of Andrews County's is. Of the 6 counties that border it, 3 have more moderate-potential ground, Lea County, NM the most at 88.3%.
The map rates the ground, not the air in any home.
Local help
Andrews County, Local resources
The Texas Radon Group offers free radon test kits for Texas individuals who qualify.
There are no radon certification requirements for the State of Texas at this time, but the National Radon Proficiency Program lists radon testers and mitigators within Texas that have passed a rigorous national certification program.
What it means
Andrews County, Questions
No CDC testing statistics are published here for Andrews County, Texas yet. Of the counties bordering it, 2 have a figure over the 2007 to 2016 laboratory totals: Lea County, NM reported the largest share at or above 4 pCi/L, 13.3%, and Midland County the smallest, 1.0%.
Andrews County borders 6 counties: Gaines County, TX, Ector County, TX, Martin County, TX, Winkler County, TX, Midland County, TX and Lea County, NM.
Products
Andrews County, Products
No CDC figure names Andrews County; the nearest county with one, Midland County (47 miles away), reported 1.0% of its tests at or above 4 pCi/L over the 2007 to 2016 laboratory totals, the only reading nearby until a test of this home. Zone 3 is the lowest label, yet homes at or above 4 pCi/L occur in every zone: a short-term kit (2 to 90 days) is the quick first check in Andrews County.
Test kits and monitors: 1 of 3
Explore
Andrews County, Bordering counties
13.3%at or above 4 pCi/L
Median 2.2 pCi/L · 30 tests
1.0%at or above 4 pCi/L
Median 0.7 pCi/L · 100 tests
0.0%at or above 4 pCi/L
Median 0.7 pCi/L · 27 tests
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Andrews County, Cities and towns
The Census Bureau estimates 18,914 residents in Andrews County for July 1, 2025, 298 more than in 2020 (+1.6%). That works out to 13 people per square mile of land. Andrews, its one incorporated place, has 13,665 residents, 72.2% of the total. CDC publishes no radon test count for Andrews County; across Texas its counts for 2007 to 2016 come to 0.1 tests for every 1,000 residents (2025 estimate).
Andrews is the one incorporated place here; CDC publishes no figure by town, so it reads Andrews County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Andrews | 13,665 | +1.1% | 72.2% |
One incorporated place, as listed in the U.S. Census Bureau’s 2020 place reference files. Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025).
Andrews County, Homes
Of Andrews County's 7,063 homes, 69% are detached houses, against 65% across Texas; 23% are mobile homes. The homes are older than Texas' as a whole: half were built before 1981 (1990 for Texas), and 22% date from before 1960. Owners live in 76% of the occupied homes (Texas: 63%), so for most households a test and a fix are their own to order.
| Homes | Andrews County | Texas |
|---|---|---|
| Housing units | 7,063 | 11,890,808 |
| Detached houses | 69% | 65% |
| In buildings of 5 or more | 3% | 21% |
| Mobile homes | 23% | 7% |
| Built before 1960 | 22% | 13% |
| Built since 2000 | 26% | 37% |
| Middle year built | 1981 | 1990 |
| Owner-occupied | 76% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.