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 El Paso County, Texas
EPA puts El Paso County in Zone 3, its lowest radon zone, and most reported tests there come back low, though 0.0% of 57 (2008 to 2017, laboratory totals) reached 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
0.0%
10.2 pts below TX
- El Paso
- 0.0%
- Texas
- 10.2%
57 tests, 2008 to 2017
Median result
0.7pCi/L
Below action level
- El Paso
- 0.7 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2008 to 2017
Tests reported
57
16th of 22 by tests
- El Paso
- 57
- Harris
- 733
Reported to CDC before any fix, 2008 to 2017
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Rank in Texas
19 of 22
Lowest quarter
- El Paso
- 0.0%
- Randall
- 69.0%
By share, of 22 with 30+ tests
Read a result for El Paso County
Starts at El Paso County's median, 0.7 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 0.7 pCi/L
Below 2 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is below 2 pCi/L, the level at which EPA says a fix should be considered. El Paso County's median reported result, 2008 to 2017.
The data
El Paso County, At a glance
El Paso County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: High across 94% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for El Paso County, 2008 to 2017, laboratory
Under 2 pCi/L: 96%2 to 4 pCi/L: 4%4 pCi/L and above: 0%
Of 57 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 55 | 96.5% |
| 2 to 4 pCi/L | 2 | 3.5% |
| 4 pCi/L and above | 0 | 0.0% |
What these figures count
These are the 57 tests reported to CDC for El Paso County over 2008 to 2017 (laboratory totals), many from homes being sold or already suspected of a problem: they describe the county's reported tests, not this house.
Measured: CDC tracking data. Figure above: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).
El Paso County, Compared
El Paso County radon figures, compared
Calculated by Radon411Only 0 of 57 radon tests reported for El Paso County over the 2008 to 2017 laboratory totals reached 4 pCi/L (0.0%). The median result, 0.7 pCi/L, sits below 2, well under EPA's 4 pCi/L action level, and the top reported result was 2.0 pCi/L.
Across 138 Texas counties pooled together, 10.2% of tests reached that level, so El Paso County runs 10.2 points below its state. Against the national pool of 35.7%, the gap is 35.7 points lower. Its place in the state: 19th of 22 Texas counties with 30 or more tests for the same period.
Zone 3 on EPA's map (predicted average under 2 pCi/L) and a 0.0% share point the same way here. Doña Ana County, NM, the one bordering county with a figure for the same period, reported 12.5%.
Below the action level, 55 tests (96.5%) came in under 2 pCi/L, against 80.3% statewide, and 2 tests (3.5%) fell between 2 and 4, against 9.6% statewide. USGS geology rates 94% of the county's land high radon potential.
CDC's ten-year totals for El Paso County went from 61 tests (2005 to 2014) to 57 (2008 to 2017), the share going from 0.0% to 0.0%.
Pooled shares: Radon411's sum of CDC's county counts for one period.
El Paso County, Geology
The ground under El Paso County
PredictedMost of the ground under El Paso County is one class on USGS's geologic map: 93.8% of its land is high radon potential, with 6.2% low. The map puts 93.8% of El Paso County in the area it calls Rocky Mountains (southern extension) and 6.2% in Basin and Range Southern Mexican Highland. USGS gives the first a radon index of 12, in the high band (12 to 17), and the second 8, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Rocky Mountains (southern extension) | Sandstone, siltstone, shale, volcanic sediments, and valley-fill alluvium. | High | 12 | 93.8% |
| Basin and Range Southern Mexican Highland | Volcanic, plutonic, and lesser sandstone, shale, limestone; Quaternary velley-fill alluvium. | Low | 8 | 6.2% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
El Paso County beside the ground around it
El Paso County has more high-potential ground than Texas as a whole: 93.8% of its land against 0.5%. Of the 3 counties that border it, none has as large a share of high-potential ground; Doña Ana County, NM comes nearest at 43.2%.
The map rates the ground, not the air in any home.
Local help
El Paso County, Local resources
Radon testing and mitigation in El Paso 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
El Paso County, Questions
Questions about radon in El Paso County
Are radon levels high in El Paso County?
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for El Paso County, Texas were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.7 pCi/L. Of 22 Texas counties with 30 or more tests for the same period, 18 reported a higher share; pooled, the state comes to 10.2%.
Which counties border El Paso County?
El Paso County borders 3 counties: Hudspeth County, TX, Doña Ana County, NM and Otero County, NM.
Products
El Paso County, Products
Testing a home in El Paso County
In El Paso County, 0.0% of 57 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 10.2% pooled across Texas. 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 El Paso 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
Corentium Home 2 battery digital radon monitor
- C-NRPP 2024/25: Not included
- Battery
- Bluetooth
- Screen, app
Method: Alpha spectrometry
Readings: Every 60 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
El Paso County, Bordering counties
Counties bordering El Paso County
Calculated by Radon411- Radon levels in Otero County, NMEPA zone 2
13.0%at or above 4 pCi/L
Median 1.2 pCi/L · 23 tests · 13.0 points above El Paso County
- Radon levels in Doña Ana County, NMEPA zone 2
12.5%at or above 4 pCi/L
Median 1.3 pCi/L · 104 tests · 12.5 points above El Paso County
- Radon levels in Hudspeth County, TXEPA zone 2
No CDC figure for 2008 to 2017; its page reads it against its own neighbours.
El Paso County, Cities and towns
Cities and towns in El Paso County
The Census Bureau estimates 877,858 residents in El Paso County for July 1, 2025, 11,276 more than in 2020 (+1.3%). That works out to 866 people per square mile of land. El Paso alone is home to 683,012 of them, 77.8% of the total. Together its 7 incorporated places hold 87.2% of those residents; the other 12.8% live outside any of them. Reported testing is thin here: 57 tests over 2008 to 2017, or 0.1 for every 1,000 residents (2025 estimate), where Texas as a whole comes to 0.1.
From El Paso to Clint, CDC publishes no figure by town: each reads El Paso County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| El Paso | 683,012 | +0.5% | 77.8% |
| Socorro | 38,787 | +12.0% | 4.4% |
| Horizon City | 25,118 | +11.1% | 2.9% |
| San Elizario | 10,138 | +0.1% | 1.2% |
| Anthony | 4,539 | +0.2% | 0.5% |
| Vinton | 2,446 | +30.7% | 0.3% |
| Clint | 1,060 | +15.7% | 0.1% |
7 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).
El Paso County, Homes
Homes in El Paso County
Of El Paso County's 320,812 homes, 68% are detached houses, against 65% across Texas; 16% are in buildings of five or more homes. Half of its homes were built before 1987, close to Texas' 1990: 16% date from before 1960 and 33% from 2000 or later. 64% 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 | El Paso County | Texas |
|---|---|---|
| Housing units | 320,812 | 11,890,808 |
| Detached houses | 68% | 65% |
| In buildings of 5 or more | 16% | 21% |
| Mobile homes | 6% | 7% |
| Built before 1960 | 16% | 13% |
| Built since 2000 | 33% | 37% |
| Middle year built | 1987 | 1990 |
| Owner-occupied | 64% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.