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
Radon Levels in Terry County, Texas
EPA puts Terry County in Zone 3, its lowest radon zone, and only 3 radon tests from it are on file with CDC (2006 to 2015, laboratory totals). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
57.8%
Lubbock County
- Lubbock
- 57.8%
1 of 7 neighbours have 30+ tests, 2007 to 2016
Nearest county
57.8%
Lubbock County, 42 miles
- Lubbock
- 57.8%
- Texas
- 10.4%
Share at 4+ pCi/L, 128 tests, 2007 to 2016
Ground above low
None
27.3 pts below Texas
- Terry
- 0.0%
- Texas
- 27.3%
Share of land USGS rates moderate or high potential
Tests reported
3
Too few for a share
- Terry
- 3
- Needed
- 30
2006 to 2015, laboratory
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Terry County
Starts at EPA's action level
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
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
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
Terry County, At a glance
Terry County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Terry County, 2006 to 2015, laboratory
CDC holds 3 reported tests for Terry County over the 2006 to 2015 laboratory totals, with a median of 1.9 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Terry County beside the counties around it is how this page reads it.
What these figures count
Only 3 tests were reported to CDC for Terry County over 2006 to 2015 (laboratory totals), and tests are often run on homes being sold or already suspected of a problem: so few describe neither the county nor this house.
Measured: CDC tracking data. Figure above: 2006 to 2015, laboratory. Measured data period: 2005 to 2015 (every CDC figure on file).
Terry County, Compared
Terry County radon figures, compared
Calculated by Radon411CDC's largest figure for Terry County rests on 3 tests over the 2006 to 2015 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 33.3 points and no rank or comparison is drawn from it. Results reached as high as 2.3 pCi/L, with a middle value of 1.9 pCi/L.
Lubbock County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 57.8% of its tests at or above 4 pCi/L. Farther out, Midland County (92 miles away) at 1.0%, Randall County (126 miles away) at 71.4% and Potter County (156 miles away) at 20.0% have figures too. Pooled across 140 Texas counties, 10.4% of reported tests reached that level; across every county in the country with a figure, 35.8%.
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 Terry 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.
Terry County, Geology
The ground under Terry County
PredictedUSGS's geologic map puts all of Terry County's mapped land in one class: low radon potential. 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 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Terry County beside the ground around it
Across Texas 0.5% of the land is rated high; none of Terry County's is. Every one of the 7 counties that border it has more moderate-potential ground, Lubbock County the most at 98.8%.
The map rates the ground, not the air in any home.
Local help
Terry County, Local resources
Radon testing and mitigation in Terry County
- Texas Radon GroupTexas Radon Group, run by Texas Tech University, does not license radon professionals and offers free or discounted test kits, and answers questions about testing and mitigation in Texas.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
The Texas Radon Group offers free radon test kits for Texas individuals who qualify.
- Compare kits
- Professionals in Texas7 professionals are listed in Texas.
What Texas's program says
- Licensing of radon professionals
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
Terry County, Questions
Questions about radon in Terry County
Are radon levels high in Terry County?
Over the 2006 to 2015 laboratory totals, 0.0% of the radon tests reported to CDC for Terry County, Texas were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.9 pCi/L. Lubbock County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 57.8% of its tests at or above 4 pCi/L.
Which counties border Terry County?
Terry County borders 7 counties: Yoakum County, Hockley County, Lynn County, Gaines County, Dawson County, Lubbock County and Cochran County.
Products
Terry County, Products
Testing a home in Terry County
No CDC figure names Terry County; the nearest county with one, Lubbock County (42 miles away), reported 57.8% 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 Terry County.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL416 long-term radon test kit, lab fee included
- Lab fee included
Method: Alpha track
In home: 90 days to 12 months
Monitor
Wave Radon battery smart radon monitor
- C-NRPP 2024/25: Not included
- Battery
- Bluetooth
- App only
Method: Alpha spectrometry
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Terry County, Bordering counties
Counties bordering Terry County
Calculated by Radon411- Radon levels in Lubbock CountyEPA zone 2
57.8%at or above 4 pCi/L
Median 4.8 pCi/L · 128 tests
- Radon levels in Dawson CountyEPA zone 3
25.0%at or above 4 pCi/L
Median 3.0 pCi/L · 4 tests
- Radon levels in Yoakum CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 1.1 pCi/L · 3 tests
- Radon levels in Hockley CountyEPA zone 2
0.0%at or above 4 pCi/L
Median 2.7 pCi/L · 1 test
- Radon levels in Lynn CountyEPA zone 2
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Gaines CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Cochran CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Terry County, Cities and towns
Cities and towns in Terry County
About 11,720 people live in Terry County by the Census Bureau's estimate for July 1, 2025, 72 fewer than in 2020 (−0.6%). That works out to 13 people per square mile of land. Brownfield alone is home to 8,762 of them, 74.8% of the total. Together its 3 incorporated places hold 82.0% of those residents; the other 18.0% live outside any of them. Testing is reported here more often than across the state: CDC's 3 reported tests for 2006 to 2015 come to 0.3 for every 1,000 residents (2025 estimate), against 0.1 for Texas.
From Brownfield to Wellman, CDC publishes no figure by town: each reads Terry County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Brownfield | 8,762 | −1.6% | 74.8% |
| Meadow | 623 | +4.4% | 5.3% |
| Wellman | 229 | Level | 2.0% |
3 incorporated places, 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).
Terry County, Homes
Homes in Terry County
Terry County is a place of houses on their own lots: 85% of its 4,796 homes are detached single-family houses, against 65% across Texas. The homes are older than Texas' as a whole: half were built before 1967 (1990 for Texas), and 33% date from before 1960. 65% of occupied homes are lived in by their owner (Texas: 63%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Terry County | Texas |
|---|---|---|
| Housing units | 4,796 | 11,890,808 |
| Detached houses | 85% | 65% |
| In buildings of 5 or more | 4% | 21% |
| Mobile homes | 10% | 7% |
| Built before 1960 | 33% | 13% |
| Built since 2000 | 9% | 37% |
| Middle year built | 1967 | 1990 |
| Owner-occupied | 65% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.