Short-term kit
Air Chek Short-Term radon test kit you hang, lab fee included
- Lab fee included
In home: 72 to 168 hours
Locations and reports
Radon Levels in Bandera County, Texas
EPA puts Bandera 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
6.6%
Bexar County
- Bexar
- 6.6%
1 of 6 neighbours have 30+ tests, 2007 to 2016
Nearest county
6.6%
Bexar County, 48 miles
- Bexar
- 6.6%
- Texas
- 10.4%
Share at 4+ pCi/L, 197 tests, 2007 to 2016
Ground above low
None
27.3 pts below Texas
- Bandera
- 0.0%
- Texas
- 27.3%
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
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Bandera 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
Bandera County, At a glance
Bandera 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
No CDC test figures here
CDC has published no radon test figures for Bandera County. Bexar County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 6.6% of its tests at or above 4 pCi/L.
Bandera County, Compared
Bandera County radon figures, compared
Calculated by Radon411No CDC figure names Bandera 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%.
Bexar County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 6.6% of its tests at or above 4 pCi/L. Farther out, Travis County (97 miles away) at 9.3%, Williamson County (116 miles away) at 2.0% and Bell County (138 miles away) at 14.3% 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 Bandera 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.
Bandera County, Geology
The ground under Bandera County
PredictedUSGS's geologic map puts all of Bandera 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.
Bandera County beside the ground around it
Across Texas 0.5% of the land is rated high; none of Bandera County's is. None of the 6 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Bandera County, Local resources
Radon testing and mitigation in Bandera 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
Bandera County, Questions
Questions about radon in Bandera County
Are radon levels high in Bandera County?
No CDC testing statistics are published here for Bandera County, Texas yet. Bexar County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 6.6% of its tests at or above 4 pCi/L.
Which counties border Bandera County?
Bandera County borders 6 counties: Kerr County, Medina County, Kendall County, Real County, Uvalde County and Bexar County.
Products
Bandera County, Products
Testing a home in Bandera County
No CDC figure names Bandera County; the nearest county with one, Bexar County (48 miles away), reported 6.6% 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 Bandera County.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
Monitor
RM-63Pro rechargeable radon monitor with a touchscreen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Bandera County, Bordering counties
Counties bordering Bandera County
Calculated by Radon411- Radon levels in Kendall CountyEPA zone 3
71.4%at or above 4 pCi/L
Median 5.7 pCi/L · 7 tests
- Radon levels in Kerr CountyEPA zone 3
12.5%at or above 4 pCi/L
Median 1.1 pCi/L · 16 tests
- Radon levels in Bexar CountyEPA zone 3
6.6%at or above 4 pCi/L
Median 0.6 pCi/L · 197 tests
- Radon levels in Medina CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.5 pCi/L · 2 tests
- Radon levels in Real CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Uvalde CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Bandera County, Cities and towns
Cities and towns in Bandera County
Bandera County is growing: the Census Bureau puts it at 22,876 residents on July 1, 2025, up 9.0% from 20,987 in 2020. That works out to 29 people per square mile of land. Bandera, its one incorporated place, has 891 residents, 3.9% of the total. CDC publishes no radon test count for Bandera County; across Texas its counts for 2007 to 2016 come to 0.1 tests for every 1,000 residents (2025 estimate).
Bandera is the one incorporated place here; CDC publishes no figure by town, so it reads Bandera County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Bandera | 891 | +8.0% | 3.9% |
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).
Bandera County, Homes
Homes in Bandera County
Of Bandera County's 11,507 homes, 67% are detached houses, against 65% across Texas; 30% are mobile homes. Half of its homes were built before 1996, close to Texas' 1990: 9% date from before 1960 and 42% from 2000 or later. Owners live in 86% of the occupied homes (Texas: 63%), so for most households a test and a fix are their own to order.
| Homes | Bandera County | Texas |
|---|---|---|
| Housing units | 11,507 | 11,890,808 |
| Detached houses | 67% | 65% |
| In buildings of 5 or more | under 1% | 21% |
| Mobile homes | 30% | 7% |
| Built before 1960 | 9% | 13% |
| Built since 2000 | 42% | 37% |
| Middle year built | 1996 | 1990 |
| Owner-occupied | 86% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.