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 Jack County, Texas
EPA puts Jack 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
10.6%
Tarrant County, 60 miles
- Tarrant
- 10.6%
- Texas
- 10.4%
Share at 4+ pCi/L, 312 tests, 2007 to 2016
Ground above low
None
27.3 pts below Texas
- Jack
- 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 Jack 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
Jack County, At a glance
Jack 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 Jack County. Tarrant County, 60 miles away, is the nearest county with a figure over the 2007 to 2016 laboratory totals.
Jack County, Compared
Jack County radon figures, compared
Calculated by Radon411No CDC figure names Jack County, in any year or ten-year total; over the 2007 to 2016 laboratory totals, the agency's counts reach 140 Texas counties without 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 Tarrant County (60 miles away) at 10.6%, Denton County (61 miles away) at 7.2% and Dallas County (87 miles away) at 8.7%. 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 Jack 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.
Jack County, Geology
The ground under Jack County
PredictedUSGS's geologic map puts all of Jack County's mapped land in one class: low radon potential. The map puts 93.4% of Jack County in the area it calls Central Texas and 6.6% in Central Texas/Gulf Coast Plain. USGS gives both 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 |
|---|---|---|---|---|
| Central Texas | Cretaceous through Quaternary marine sandstone, shale, chalk, limestone, siltstone, clay, and lignite. | Low | 7 | 93.4% |
| Central Texas/Gulf Coast Plain | Cretaceous through Quaternary marine sandstone, shale, chalk, limestone, siltstone, clay, and lignite. | Low | 7 | 6.6% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Jack County beside the ground around it
Across Texas 0.5% of the land is rated high; none of Jack County's is. None of the 7 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Jack County, Local resources
Radon testing and mitigation in Jack 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
Jack County, Questions
Questions about radon in Jack County
Are radon levels high in Jack County?
No CDC testing statistics are published here for Jack County, Texas yet. Of the 8 nearest counties with a figure, within 181 miles, the share of tests at or above 4 pCi/L runs from 2.0% to 17.1%.
Which counties border Jack County?
Jack County borders 7 counties: Young County, Wise County, Clay County, Palo Pinto County, Parker County, Montague County and Archer County.
Products
Jack County, Products
Testing a home in Jack County
No CDC figure names Jack County; the nearest county with one, Tarrant County (60 miles away), reported 10.6% 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 Jack 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
Jack County, Bordering counties
Counties bordering Jack County
Calculated by Radon411- Radon levels in Montague CountyEPA zone 3
12.5%at or above 4 pCi/L
Median 0.1 pCi/L · 16 tests
- Radon levels in Parker CountyEPA zone 3
10.0%at or above 4 pCi/L
Median 1.0 pCi/L · 20 tests
- Radon levels in Wise CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.9 pCi/L · 4 tests
- Radon levels in Young CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Clay CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Palo Pinto CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Archer CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Jack County, Cities and towns
Cities and towns in Jack County
Jack County is growing: the Census Bureau puts it at 9,563 residents on July 1, 2025, up 12.7% from 8,484 in 2020. That works out to 10 people per square mile of land. Its largest town, Jacksboro, has 4,735 residents, 49.5% of the total. Together its 2 incorporated places hold 54.5% of those residents; the other 45.5% live outside any of them. CDC publishes no radon test count for Jack County; across Texas its counts for 2007 to 2016 come to 0.1 tests for every 1,000 residents (2025 estimate).
From Jacksboro to Bryson, CDC publishes no figure by town: each reads Jack County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Jacksboro | 4,735 | +13.4% | 49.5% |
| Bryson | 474 | +10.7% | 5.0% |
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).
Jack County, Homes
Homes in Jack County
Of Jack County's 3,799 homes, 75% are detached houses, against 65% across Texas; 18% are mobile homes. The homes are older than Texas' as a whole: half were built before 1976 (1990 for Texas), and 27% date from before 1960. 72% 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 | Jack County | Texas |
|---|---|---|
| Housing units | 3,799 | 11,890,808 |
| Detached houses | 75% | 65% |
| In buildings of 5 or more | 2% | 21% |
| Mobile homes | 18% | 7% |
| Built before 1960 | 27% | 13% |
| Built since 2000 | 21% | 37% |
| Middle year built | 1976 | 1990 |
| Owner-occupied | 72% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.