Short-term kit
PicoCan short-term charcoal canister radon test
- Lab fee included
Method: Charcoal
In home: 48 to 96 hours
Locations and reports
Radon Levels in Potter County, Texas
EPA puts Potter County in Zone 2, its middle radon zone, and 23.0% of its 74 reported radon tests (2008 to 2017, laboratory totals) were at or above 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
23.0%
12.8 pts above TX
- Potter
- 23.0%
- Texas
- 10.2%
74 tests, 2008 to 2017
Median result
1.4pCi/L
Below action level
- Potter
- 1.4 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2008 to 2017
Tests reported
74
14th of 22 by tests
- Potter
- 74
- Harris
- 733
Reported to CDC before any fix, 2008 to 2017
EPA radon zone
Zone 2
Moderate potential
- 1
- Zone 2
- 3
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Rank in Texas
4 of 22
Top quarter
- Potter
- 23.0%
- Randall
- 69.0%
By share, of 22 with 30+ tests
Read a result for Potter County
Starts at Potter County's median, 1.4 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 1.4 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. Potter County's median reported result, 2008 to 2017.
The data
Potter County, At a glance
Potter County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Potter County is a
USGS geologic potential: Moderate across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Potter County, 2008 to 2017, laboratory
Under 2 pCi/L: 55%2 to 4 pCi/L: 22%4 pCi/L and above: 23%
Of 74 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 41 | 55.4% |
| 2 to 4 pCi/L | 16 | 21.6% |
| 4 pCi/L and above | 17 | 23.0% |
What these figures count
These are the 74 tests reported to CDC for Potter 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).
Potter County, Compared
Potter County radon figures, compared
Calculated by Radon411Potter County's 74 reported tests over the 2008 to 2017 laboratory totals had a middle value of 1.4 pCi/L and a maximum of 66.0 pCi/L, and 23.0% reached 4 pCi/L. Texas as a whole (138 Texas counties, pooled) comes to 10.2%: 12.8 points lower than here.
Among its state's counties it ranks 4th of 22 Texas counties with 30 or more tests for the same period. Statewide for the same period, Randall County reported the highest share (69.0%) and Nueces County the lowest (0.0%).
Below the action level, 41 tests (55.4%) came in under 2 pCi/L, against 80.3% statewide, and 16 tests (21.6%) fell between 2 and 4, against 9.6% statewide. CDC's ten-year totals for Potter County went from 44 tests (2005 to 2014) to 74 (2008 to 2017), the share going from 29.5% to 23.0%.
EPA's 1993 zone map puts Potter County in Zone 2, a predicted county average between 2 and 4 pCi/L. USGS geology rates 100% of the county's land moderate radon potential.
Randall County, the one bordering county with a figure for the same period, reported 69.0%.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Potter County, Geology
The ground under Potter County
PredictedUSGS's geologic map puts all of Potter County's mapped land in one class: moderate radon potential. The map puts 63.8% of Potter County in the area it calls Northern High Plains and Plateaus and 36.2% in Great Plains Pecos Valley Section. USGS gives the first a radon index of 10 and the second 9, both in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Northern High Plains and Plateaus | Tertiary sandstone, siltstone, shale. | Moderate | 10 | 63.8% |
| Great Plains Pecos Valley Section | Quaternary alluvial and eolian sand and silt. | Moderate | 9 | 36.2% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Potter County beside the ground around it
Across Texas 0.5% of the land is rated high; none of Potter County's is. Of the 6 counties that border it, none has as large a share of moderate-potential ground; Carson County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Potter County, Local resources
Radon testing and mitigation in Potter 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
Potter County, Questions
Questions about radon in Potter County
Are radon levels high in Potter County?
Over the 2008 to 2017 laboratory totals, 23.0% of the radon tests reported to CDC for Potter County, Texas were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.4 pCi/L. Of 22 Texas counties with 30 or more tests for the same period, 3 reported a higher share; pooled, the state comes to 10.2%.
Which counties border Potter County?
Potter County borders 6 counties: Randall County, Moore County, Carson County, Oldham County, Armstrong County and Deaf Smith County.
Products
Potter County, Products
Testing a home in Potter County
In Potter County, 23.0% of 74 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 10.2% pooled across Texas. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Potter County; a long-term test tells the year-round average.
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
MonitorAranet
Radon Plus battery digital radon monitor with an e-ink screen
- C-NRPP 2024/25: Approved
- Battery
- Bluetooth
- Alarm
- Screen, app
Method: Ion chamber
First reading: Within 10 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Potter County, Bordering counties
Counties bordering Potter County
Calculated by Radon411- Radon levels in Moore CountyEPA zone 2
100.0%at or above 4 pCi/L
Median 4.7 pCi/L · 2 tests · 77.0 points above Potter County
- Radon levels in Carson CountyEPA zone 2
100.0%at or above 4 pCi/L
Median 36.2 pCi/L · 2 tests · 77.0 points above Potter County
- Radon levels in Deaf Smith CountyEPA zone 2
83.3%at or above 4 pCi/L
Median 8.2 pCi/L · 6 tests · 60.3 points above Potter County
- Radon levels in Randall CountyEPA zone 2
69.0%at or above 4 pCi/L
Median 6.1 pCi/L · 87 tests · 46.0 points above Potter County
- Radon levels in Oldham CountyEPA zone 2
No CDC figure for 2008 to 2017; its page reads it against its own neighbours.
- Radon levels in Armstrong CountyEPA zone 2
No CDC figure for 2008 to 2017; its page reads it against its own neighbours.
Potter County, Cities and towns
Cities and towns in Potter County
About 114,453 people live in Potter County by the Census Bureau's estimate for July 1, 2025, 3,900 fewer than in 2020 (−3.3%). That works out to 126 people per square mile of land. Amarillo, the largest place on its list (205,130 residents in all), extends beyond Potter County, so no share of the total is worked out for it. Testing is reported here more often than across the state: CDC's 74 reported tests for 2008 to 2017 come to 0.6 for every 1,000 residents (2025 estimate), against 0.1 for Texas.
From Amarillo to Bishop Hills, CDC publishes no figure by town: each reads Potter County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Amarilloextends beyond Potter County | 205,130 | +2.3% | Counted whole |
| Bishop Hills | 195 | −6.3% | 0.2% |
2 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 Potter County is counted whole, so it has no share.
Potter County, Homes
Homes in Potter County
Of Potter County's 49,133 homes, 68% are detached houses, against 65% across Texas; 15% are in buildings of five or more homes. The homes are older than Texas' as a whole: half were built before 1962 (1990 for Texas), and 47% date from before 1960. 57% 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 | Potter County | Texas |
|---|---|---|
| Housing units | 49,133 | 11,890,808 |
| Detached houses | 68% | 65% |
| In buildings of 5 or more | 15% | 21% |
| Mobile homes | 8% | 7% |
| Built before 1960 | 47% | 13% |
| Built since 2000 | 13% | 37% |
| Middle year built | 1962 | 1990 |
| Owner-occupied | 57% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.