Short-term kitKidde
442020 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 3 days
Locations and reports
Radon Levels in Glasscock County, Texas
EPA puts Glasscock 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
1.0%
Midland County
- Midland
- 1.0%
1 of 6 neighbours have 30+ tests, 2007 to 2016
Nearest county
1.0%
Midland County, 30 miles
- Midland
- 1.0%
- Texas
- 10.4%
Share at 4+ pCi/L, 100 tests, 2007 to 2016
Ground above low
84.0%
56.7 pts above Texas
- Glasscock
- 84.0%
- 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 Glasscock 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
Glasscock County, At a glance
Glasscock County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Moderate across 84% 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 Glasscock County. Midland County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 1.0% of its tests at or above 4 pCi/L.
Glasscock County, Compared
Glasscock County radon figures, compared
Calculated by Radon411Glasscock 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%.
Midland County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 1.0% of its tests at or above 4 pCi/L. Farther out, Lubbock County (121 miles away) at 57.8%, Randall County (215 miles away) at 71.4% and Potter County (244 miles away) at 20.0% 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 Glasscock County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 84% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Glasscock County, Geology
The ground under Glasscock County
PredictedMost of the ground under Glasscock County is one class on USGS's geologic map: 84.0% of its land is moderate radon potential, with 16.0% low. The map puts 84.0% of Glasscock County in the area it calls Northern High Plains and Plateaus and 16.0% in Southern High Plains and Plateaus. USGS gives the first a radon index of 10, in the moderate band (9 to 11), and the second 7, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Northern High Plains and Plateaus | Tertiary sandstone, siltstone, shale. | Moderate | 10 | 84.0% |
| Southern High Plains and Plateaus | Paleozoic and Mesozoic sandstone, limestone, shale. | Low | 7 | 16.0% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Glasscock County beside the ground around it
Across Texas 0.5% of the land is rated high; none of Glasscock County's is. Of the 6 counties that border it, none has as large a share of moderate-potential ground; Reagan County comes nearest at 67.2%.
The map rates the ground, not the air in any home.
Local help
Glasscock County, Local resources
Radon testing and mitigation in Glasscock 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
Glasscock County, Questions
Questions about radon in Glasscock County
Are radon levels high in Glasscock County?
No CDC testing statistics are published here for Glasscock County, Texas yet. Midland County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 1.0% of its tests at or above 4 pCi/L.
Which counties border Glasscock County?
Glasscock County borders 6 counties: Sterling County, Midland County, Howard County, Reagan County, Martin County and Upton County.
Products
Glasscock County, Products
Testing a home in Glasscock County
No CDC figure names Glasscock County; the nearest county with one, Midland County (30 miles away), reported 1.0% 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 Glasscock 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-1085 palm-sized rechargeable radon detector
- 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
Glasscock County, Bordering counties
Counties bordering Glasscock County
Calculated by Radon411- Radon levels in Midland CountyEPA zone 3
1.0%at or above 4 pCi/L
Median 0.7 pCi/L · 100 tests
- 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 Sterling CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Reagan 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 Upton CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Glasscock County, Residents
Who lives in Glasscock County
The Census Bureau estimates 1,128 residents in Glasscock County for July 1, 2025, 11 more than in 2020 (+1.0%). Spread over its land, that is 1.3 people to the square mile. CDC publishes no radon test count for Glasscock County; across Texas its counts for 2007 to 2016 come to 0.1 tests for every 1,000 residents (2025 estimate).
Census lists no incorporated place in Glasscock County: every home in it reads the county's figures.
Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025).
Glasscock County, Homes
Homes in Glasscock County
Glasscock County is a place of houses on their own lots: 89% of its 463 homes are detached single-family houses, against 65% across Texas. The homes are older than Texas' as a whole: half were built before 1977 (1990 for Texas), and 21% date from before 1960. 66% 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 | Glasscock County | Texas |
|---|---|---|
| Housing units | 463 | 11,890,808 |
| Detached houses | 89% | 65% |
| In buildings of 5 or more | 0% | 21% |
| Mobile homes | 9% | 7% |
| Built before 1960 | 21% | 13% |
| Built since 2000 | 25% | 37% |
| Middle year built | 1977 | 1990 |
| Owner-occupied | 66% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.