Short-term kitempowerDX
Standard Radon Test short-term mail-in radon test kit
- Lab fee included
Method: Passive sampler
In home: 48 to 96 hours
Locations and reports
Radon Levels in Dawson County, Texas
EPA puts Dawson County in Zone 3, its lowest radon zone, and only 4 radon tests from it are on file with CDC (2008 to 2017, laboratory totals). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Nearest county
57.8%
Lubbock County, 60 miles
- Lubbock
- 57.8%
- Texas
- 10.4%
Share at 4+ pCi/L, 128 tests, 2007 to 2016
Ground above low
17.4%
9.9 pts below Texas
- Dawson
- 17.4%
- Texas
- 27.3%
Share of land USGS rates moderate or high potential
Tests reported
4
Too few for a share
- Dawson
- 4
- Needed
- 30
2008 to 2017, 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 Dawson 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
Dawson County, At a glance
Dawson County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 83% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Dawson County, 2008 to 2017, laboratory
CDC holds 4 reported tests for Dawson County over the 2008 to 2017 laboratory totals, with a median of 3.0 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Dawson County beside the counties around it is how this page reads it.
What these figures count
Only 4 tests were reported to CDC for Dawson County over 2008 to 2017 (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: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).
Dawson County, Compared
Dawson County radon figures, compared
Calculated by Radon411CDC's largest figure for Dawson County rests on 4 tests over the 2008 to 2017 laboratory totals, 1 of them at or above 4 pCi/L, so each test moves its share by 25.0 points and no rank or comparison is drawn from it. Results reached as high as 5.1 pCi/L, with a middle value of 3.0 pCi/L.
The nearest counties with a figure are Lubbock County (60 miles away) at 57.8%, Midland County (60 miles away) at 1.0% and Randall County (153 miles away) at 71.4%. 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 Dawson County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 83% of the county's land low radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Dawson County, Geology
The ground under Dawson County
PredictedMost of the ground under Dawson County is one class on USGS's geologic map: 82.6% of its land is low radon potential, with 17.4% moderate. The map puts 82.6% of Dawson County in the area it calls Southern High Plains and Plateaus and 17.4% in Northern High Plains and Plateaus. USGS gives the first a radon index of 7, in the low band (5 to 8), and the second 10, in the moderate band (9 to 11).
| 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 | 82.6% |
| Northern High Plains and Plateaus | Tertiary sandstone, siltstone, shale. | Moderate | 10 | 17.4% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Dawson County beside the ground around it
Across Texas 0.5% of the land is rated high; none of Dawson County's is. Of the 6 counties that border it, 3 have more moderate-potential ground, Borden County the most at 99.0%.
The map rates the ground, not the air in any home.
Local help
Dawson County, Local resources
Radon testing and mitigation in Dawson 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
Dawson County, Questions
Questions about radon in Dawson County
Are radon levels high in Dawson County?
Over the 2008 to 2017 laboratory totals, 25.0% of the radon tests reported to CDC for Dawson County, Texas were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.0 pCi/L. Of the 8 nearest counties with a figure, within 288 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 71.4%.
Which counties border Dawson County?
Dawson County borders 6 counties: Borden County, Martin County, Lynn County, Terry County, Gaines County and Howard County.
Products
Dawson County, Products
Testing a home in Dawson County
No CDC figure names Dawson County; the nearest county with one, Lubbock County (60 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 Dawson 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
MonitorAEGTEST
HOUND-1011 rechargeable radon detector with a screen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 6 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Dawson County, Bordering counties
Counties bordering Dawson County
Calculated by Radon411- Radon levels in Howard CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.5 pCi/L · 3 tests
- Radon levels in Borden CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Martin CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- 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 Terry CountyEPA zone 3
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.
Dawson County, Cities and towns
Cities and towns in Dawson County
Dawson County has been losing residents: from 12,474 in 2020 to 11,776 on July 1, 2025, a fall of 5.6% by the Census Bureau's estimates. That works out to 13 people per square mile of land. Lamesa alone is home to 8,103 of them, 68.8% of the total. Testing is reported here more often than across the state: CDC's 4 reported tests for 2008 to 2017 come to 0.3 for every 1,000 residents (2025 estimate), against 0.1 for Texas.
From Lamesa to Los Ybanez, CDC publishes no figure by town: each reads Dawson County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Lamesa | 8,103 | −7.0% | 68.8% |
| O'Donnellextends beyond Dawson County | 741 | +5.0% | Counted whole |
| Ackerlyextends beyond Dawson County | 269 | +1.5% | Counted whole |
| Los Ybanez | 20 | −9.1% | 0.2% |
4 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). A place that extends beyond Dawson County is counted whole, so it has no share.
Dawson County, Homes
Homes in Dawson County
Dawson County is a place of houses on their own lots: 89% of its 4,892 homes are detached single-family houses, against 65% across Texas. The homes are older than Texas' as a whole: half were built before 1965 (1990 for Texas), and 38% date from before 1960. 70% 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 | Dawson County | Texas |
|---|---|---|
| Housing units | 4,892 | 11,890,808 |
| Detached houses | 89% | 65% |
| In buildings of 5 or more | 4% | 21% |
| Mobile homes | 5% | 7% |
| Built before 1960 | 38% | 13% |
| Built since 2000 | 6% | 37% |
| Middle year built | 1965 | 1990 |
| Owner-occupied | 70% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.