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 Jim Hogg County, Texas
EPA puts Jim Hogg 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
0.0%
Nueces County, 82 miles
- Nueces
- 0.0%
- Texas
- 10.4%
Share at 4+ pCi/L, 45 tests, 2007 to 2016
Ground above low
None
27.3 pts below Texas
- Jim Hogg
- 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 Jim Hogg 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
Jim Hogg County, At a glance
Jim Hogg 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 Jim Hogg County. Nueces County, 82 miles away, is the nearest county with a figure over the 2007 to 2016 laboratory totals.
Jim Hogg County, Compared
Jim Hogg County radon figures, compared
Calculated by Radon411CDC's county radon counts over the 2007 to 2016 laboratory totals cover 140 Texas counties, and Jim Hogg 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 Nueces County (82 miles away) at 0.0%, Bexar County (166 miles away) at 6.6% and Travis County (233 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 Jim Hogg 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.
Jim Hogg County, Geology
The ground under Jim Hogg County
PredictedUSGS's geologic map puts all of Jim Hogg County's mapped land in one class: low radon potential. All of it lies in the area the map calls South Texas Plain, 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 |
|---|---|---|---|---|
| South Texas Plain | Cretaceous through Quaternary marine sandstone, shale, chalk, limestone, siltstone, clay, and lignite. | 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.
Jim Hogg County beside the ground around it
Across Texas 0.5% of the land is rated high; none of Jim Hogg County's is. None of the 5 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Jim Hogg County, Local resources
Radon testing and mitigation in Jim Hogg 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
Jim Hogg County, Questions
Questions about radon in Jim Hogg County
Are radon levels high in Jim Hogg County?
No CDC testing statistics are published here for Jim Hogg County, Texas yet. Of the 8 nearest counties with a figure, within 279 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 9.3%.
Which counties border Jim Hogg County?
Jim Hogg County borders 5 counties: Zapata County, Brooks County, Starr County, Duval County and Webb County.
Products
Jim Hogg County, Products
Testing a home in Jim Hogg County
No CDC figure names Jim Hogg County; the nearest county with one, Nueces County (82 miles away), reported 0.0% 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 Jim Hogg 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
MonitorX-Sense
XR0B-SR battery digital radon monitor with an alarm
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Alpha spectrometry
First reading: Within 24 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Jim Hogg County, Bordering counties
Counties bordering Jim Hogg County
Calculated by Radon411- Radon levels in Zapata CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 2 tests
- Radon levels in Starr CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 1.2 pCi/L · 1 test
- Radon levels in Webb CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.6 pCi/L · 6 tests
- Radon levels in Brooks CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Duval CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Jim Hogg County, Residents
Who lives in Jim Hogg County
Jim Hogg County has been losing residents: from 4,845 in 2020 to 4,555 on July 1, 2025, a fall of 6.0% by the Census Bureau's estimates. Spread over its land, that is 4.0 people to the square mile. CDC publishes no radon test count for Jim Hogg 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 Jim Hogg County: every home in it reads the county's figures.
Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025).
Jim Hogg County, Homes
Homes in Jim Hogg County
Jim Hogg County is a place of houses on their own lots: 79% of its 1,931 homes are detached single-family houses, against 65% across Texas. The homes are older than Texas' as a whole: half were built before 1975 (1990 for Texas), and 28% date from before 1960. 62% 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 | Jim Hogg County | Texas |
|---|---|---|
| Housing units | 1,931 | 11,890,808 |
| Detached houses | 79% | 65% |
| In buildings of 5 or more | 6% | 21% |
| Mobile homes | 10% | 7% |
| Built before 1960 | 28% | 13% |
| Built since 2000 | 16% | 37% |
| Middle year built | 1975 | 1990 |
| Owner-occupied | 62% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.