Short-term kitFirst Alert
RD1 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 2 to 4 days
Locations and reports
Radon Levels in Garza County, Texas
EPA puts Garza County in Zone 2, its middle radon zone, and only 1 radon test from it is on file with CDC (2006 to 2015, laboratory totals). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
57.8%
Lubbock County
- Lubbock
- 57.8%
1 of 7 neighbours have 30+ tests, 2007 to 2016
Nearest county
57.8%
Lubbock County, 42 miles
- Lubbock
- 57.8%
- Texas
- 10.4%
Share at 4+ pCi/L, 128 tests, 2007 to 2016
Ground above low
100.0%
72.7 pts above Texas
- Garza
- 100.0%
- Texas
- 27.3%
Share of land USGS rates moderate or high potential
Tests reported
1
Too few for a share
- Garza
- 1
- Needed
- 30
2006 to 2015, laboratory
EPA radon zone
Zone 2
Moderate potential
- 1
- Zone 2
- 3
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Read a result for Garza 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
Garza County, At a glance
Garza County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Garza 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 Garza County, 2006 to 2015, laboratory
CDC holds 1 reported test for Garza County over the 2006 to 2015 laboratory totals, a result of 2.2 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Garza County beside the counties around it is how this page reads it.
What these figures count
Only 1 test was reported to CDC for Garza County over 2006 to 2015 (laboratory totals), and tests are often run on homes being sold or already suspected of a problem: so few describe neither the county nor this house.
Measured: CDC tracking data. Figure above: 2006 to 2015, laboratory. Measured data period: 2005 to 2015 (every CDC figure on file).
Garza County, Compared
Garza County radon figures, compared
Calculated by Radon411CDC's largest figure for Garza County rests on 1 test over the 2006 to 2015 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 100.0 points and no rank or comparison is drawn from it. Results reached as high as 2.2 pCi/L, with a middle value of 2.2 pCi/L.
Lubbock County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 57.8% of its tests at or above 4 pCi/L. Farther out, Midland County (100 miles away) at 1.0%, Randall County (128 miles away) at 71.4% and Potter County (157 miles away) at 20.0% have figures too. Pooled across 140 Texas counties, 10.4% of reported tests reached that level; across every county in the country with a figure, 35.8%.
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 Garza County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 100% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Garza County, Geology
The ground under Garza County
PredictedUSGS's geologic map puts all of Garza County's mapped land in one class: moderate radon potential. All of it lies in the area the map calls Northern High Plains and Plateaus, to which USGS gives a radon index of 10, 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 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Garza County beside the ground around it
Across Texas 0.5% of the land is rated high; none of Garza County's is. Of the 7 counties that border it, none has as large a share of moderate-potential ground; Crosby County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Garza County, Local resources
Radon testing and mitigation in Garza 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
Garza County, Questions
Questions about radon in Garza County
Are radon levels high in Garza County?
Over the 2006 to 2015 laboratory totals, 0.0% of the radon tests reported to CDC for Garza County, Texas were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.2 pCi/L. Lubbock County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 57.8% of its tests at or above 4 pCi/L.
Which counties border Garza County?
Garza County borders 7 counties: Crosby County, Lynn County, Kent County, Borden County, Scurry County, Lubbock County and Dickens County.
Products
Garza County, Products
Testing a home in Garza County
No CDC figure names Garza County; the nearest county with one, Lubbock County (42 miles away), reported 57.8% 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. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Garza County; a long-term test tells the year-round average.
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
EcoQube Flex battery digital radon monitor with an e-ink screen
- C-NRPP 2024/25: Not included
- Battery
- Bluetooth
- Alarm
- Screen, app
Method: Ion chamber
First reading: Within 15 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Garza County, Bordering counties
Counties bordering Garza County
Calculated by Radon411- Radon levels in Scurry CountyEPA zone 3
100.0%at or above 4 pCi/L
Median 11.1 pCi/L · 1 test
- Radon levels in Lubbock CountyEPA zone 2
57.8%at or above 4 pCi/L
Median 4.8 pCi/L · 128 tests
- Radon levels in Crosby CountyEPA zone 2
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Lynn CountyEPA zone 2
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Kent CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Borden CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Dickens CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Garza County, Cities and towns
Cities and towns in Garza County
Garza County has been losing residents: from 5,806 in 2020 to 4,510 on July 1, 2025, a fall of 22.3% by the Census Bureau's estimates. Spread over its land, that is 5.0 people to the square mile. Post, its one incorporated place, has 3,494 residents, 77.5% of the total. Testing is reported here more often than across the state: CDC's 1 reported test for 2006 to 2015 come to 0.2 for every 1,000 residents (2025 estimate), against 0.1 for Texas.
Post is the one incorporated place here; CDC publishes no figure by town, so it reads Garza County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Post | 3,494 | −26.9% | 77.5% |
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).
Garza County, Homes
Homes in Garza County
Garza County is a place of houses on their own lots: 80% of its 2,094 homes are detached single-family houses, against 65% across Texas. The homes are older than Texas' as a whole: half were built before 1971 (1990 for Texas), and 33% date from before 1960. 69% 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 | Garza County | Texas |
|---|---|---|
| Housing units | 2,094 | 11,890,808 |
| Detached houses | 80% | 65% |
| In buildings of 5 or more | 0% | 21% |
| Mobile homes | 13% | 7% |
| Built before 1960 | 33% | 13% |
| Built since 2000 | 18% | 37% |
| Middle year built | 1971 | 1990 |
| Owner-occupied | 69% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.