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 Menard County, Texas
EPA puts Menard 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
Nearest county
6.6%
Bexar County, 126 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
- Menard
- 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 Menard 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
Menard County, At a glance
Menard 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 Menard County. Bexar County, 126 miles away, is the nearest county with a figure over the 2007 to 2016 laboratory totals.
Menard County, Compared
Menard County radon figures, compared
Calculated by Radon411Menard County has no radon test figure of its own from CDC, whose counts over the 2007 to 2016 laboratory totals name 140 other Texas counties and leave it out. Pooled across 140 Texas counties, 10.4% of reported tests reached that level; across every county in the country with a figure, 35.8%.
The nearest counties with a figure are Bexar County (126 miles away) at 6.6%, Travis County (127 miles away) at 9.3% and Williamson County (133 miles away) at 2.0%. 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 Menard 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.
Menard County, Geology
The ground under Menard County
PredictedUSGS's geologic map puts all of Menard 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.
Menard County beside the ground around it
Across Texas 0.5% of the land is rated high; none of Menard County's is. Of the 7 counties that border it, 4 have more moderate-potential ground, Mason County the most at 85.7%.
The map rates the ground, not the air in any home.
Local help
Menard County, Local resources
Radon testing and mitigation in Menard 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
Menard County, Questions
Questions about radon in Menard County
Are radon levels high in Menard County?
No CDC testing statistics are published here for Menard County, Texas yet. Of the 8 nearest counties with a figure, within 210 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 17.1%.
Which counties border Menard County?
Menard County borders 7 counties: Kimble County, Concho County, Mason County, McCulloch County, Schleicher County, Tom Green County and Sutton County.
Products
Menard County, Products
Testing a home in Menard County
No CDC figure names Menard County; the nearest county with one, Bexar County (126 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 Menard 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
RadonScan USB-powered radon monitor with a color screen
- C-NRPP 2024/25: Not included
- Plug-in
- Alarm
- Screen
First reading: Within 5 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Menard County, Bordering counties
Counties bordering Menard County
Calculated by Radon411- Radon levels in Tom Green CountyEPA zone 3
33.3%at or above 4 pCi/L
Median 2.0 pCi/L · 6 tests
- Radon levels in Kimble CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 2.1 pCi/L · 1 test
- Radon levels in Concho CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Mason CountyEPA zone 2
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in McCulloch CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Schleicher CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Sutton CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Menard County, Cities and towns
Cities and towns in Menard County
Menard County's population has barely moved since 2020: 1,956 residents on July 1, 2025 against 1,959 then, by the Census Bureau's estimates. Spread over its land, that is 2.2 people to the square mile. Menard, its one incorporated place, has 1,356 residents, 69.3% of the total. CDC publishes no radon test count for Menard County; across Texas its counts for 2007 to 2016 come to 0.1 tests for every 1,000 residents (2025 estimate).
Menard is the one incorporated place here; CDC publishes no figure by town, so it reads Menard County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Menard | 1,356 | −0.1% | 69.3% |
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).
Menard County, Homes
Homes in Menard County
Menard County is a place of houses on their own lots: 76% of its 1,309 homes are detached single-family houses, against 65% across Texas. The homes are older than Texas' as a whole: half were built before 1970 (1990 for Texas), and 45% date from before 1960. Owners live in 76% of the occupied homes (Texas: 63%), so for most households a test and a fix are their own to order.
| Homes | Menard County | Texas |
|---|---|---|
| Housing units | 1,309 | 11,890,808 |
| Detached houses | 76% | 65% |
| In buildings of 5 or more | 5% | 21% |
| Mobile homes | 17% | 7% |
| Built before 1960 | 45% | 13% |
| Built since 2000 | 15% | 37% |
| Middle year built | 1970 | 1990 |
| Owner-occupied | 76% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.