Short-term kit
Radon Short Term Test Kit short-term charcoal radon test kit, lab fee included
- Lab fee included
Method: Charcoal
In home: 2 to 7 days
Locations and reports
Radon Levels in San Saba County, Texas
EPA puts San Saba 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
14.3%
Bell County, 80 miles
- Bell
- 14.3%
- Texas
- 10.4%
Share at 4+ pCi/L, 35 tests, 2007 to 2016
Ground above low
47.9%
20.6 pts above Texas
- San Saba
- 47.9%
- 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 San Saba 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
San Saba County, At a glance
San Saba County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 52% 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 San Saba County. Bell County, 80 miles away, is the nearest county with a figure over the 2007 to 2016 laboratory totals.
San Saba County, Compared
San Saba County radon figures, compared
Calculated by Radon411CDC's county radon counts over the 2007 to 2016 laboratory totals cover 140 Texas counties, and San Saba County is not among them: no year's figure and no ten-year laboratory total names 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%.
The nearest counties with a figure are Bell County (80 miles away) at 14.3%, Williamson County (80 miles away) at 2.0% and Travis County (84 miles away) at 9.3%. 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 San Saba County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 52% of the county's land low radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
San Saba County, Geology
The ground under San Saba County
PredictedUSGS's geologic map splits San Saba County: 52.1% of its land is low radon potential and 47.9% moderate. The map puts 52.1% of San Saba County in the area it calls Central Texas and 47.9% in Llano Uplift. USGS gives the first a radon index of 7, in the low band (5 to 8), and the second 10, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Central Texas | Cretaceous through Quaternary marine sandstone, shale, chalk, limestone, siltstone, clay, and lignite. | Low | 7 | 52.1% |
| Llano Uplift | Precambrian metamorphic and undifferentiated igneous rocks. | Moderate | 10 | 47.9% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
San Saba County beside the ground around it
Across Texas 0.5% of the land is rated high; none of San Saba County's is. Of the 7 counties that border it, 2 have more moderate-potential ground, Llano County the most at 100%.
The map rates the ground, not the air in any home.
Local help
San Saba County, Local resources
Radon testing and mitigation in San Saba 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
San Saba County, Questions
Questions about radon in San Saba County
Are radon levels high in San Saba County?
No CDC testing statistics are published here for San Saba County, Texas yet. Of the 8 nearest counties with a figure, within 163 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 17.1%.
Which counties border San Saba County?
San Saba County borders 7 counties: Mills County, McCulloch County, Lampasas County, Mason County, Llano County, Brown County and Burnet County.
Products
San Saba County, Products
Testing a home in San Saba County
No CDC figure names San Saba County; the nearest county with one, Bell County (80 miles away), reported 14.3% 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 San Saba 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
MonitorINKBIRD
INK-RD3 battery radon monitor with an e-ink screen
- C-NRPP 2024/25: Not included
- Battery
- Screen
First reading: Within 24 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
San Saba County, Bordering counties
Counties bordering San Saba County
Calculated by Radon411- Radon levels in Burnet CountyEPA zone 3
71.4%at or above 4 pCi/L
Median 27.4 pCi/L · 7 tests
- Radon levels in Llano CountyEPA zone 2
0.0%at or above 4 pCi/L
Median 1.5 pCi/L · 6 tests
- Radon levels in Brown CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 1.8 pCi/L · 1 test
- Radon levels in Mills CountyEPA zone 3
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 Lampasas 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.
San Saba County, Cities and towns
Cities and towns in San Saba County
The Census Bureau estimates 5,787 residents in San Saba County for July 1, 2025, 64 more than in 2020 (+1.1%). Spread over its land, that is 5.1 people to the square mile. San Saba alone is home to 3,126 of them, 54.0% of the total. Together its 2 incorporated places hold 58.4% of those residents; the other 41.6% live outside any of them. CDC publishes no radon test count for San Saba County; across Texas its counts for 2007 to 2016 come to 0.1 tests for every 1,000 residents (2025 estimate).
From San Saba to Richland Springs, CDC publishes no figure by town: each reads San Saba County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| San Saba | 3,126 | +0.9% | 54.0% |
| Richland Springs | 255 | +4.1% | 4.4% |
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).
San Saba County, Homes
Homes in San Saba County
San Saba County is a place of houses on their own lots: 80% of its 2,848 homes are detached single-family houses, against 65% across Texas. The homes are older than Texas' as a whole: half were built before 1976 (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 | San Saba County | Texas |
|---|---|---|
| Housing units | 2,848 | 11,890,808 |
| Detached houses | 80% | 65% |
| In buildings of 5 or more | 2% | 21% |
| Mobile homes | 11% | 7% |
| Built before 1960 | 33% | 13% |
| Built since 2000 | 19% | 37% |
| Middle year built | 1976 | 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.