Short-term kit
RA100 short-term liquid scintillation radon test kit
- Lab fee extra
Method: Liquid scintillation
In home: 48 to 96 hours
Locations and reports
Radon Levels in Rusk County, Texas
EPA puts Rusk County in Zone 3, its lowest radon zone, and only 2 radon tests from it are on file with CDC (2008 to 2017, laboratory totals). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
9.1%
Smith County
- Smith
- 9.1%
1 of 7 neighbours have 30+ tests, 2007 to 2016
Nearest county
9.1%
Smith County, 35 miles
- Smith
- 9.1%
- Texas
- 10.4%
Share at 4+ pCi/L, 33 tests, 2007 to 2016
Ground above low
None
27.3 pts below Texas
- Rusk
- 0.0%
- Texas
- 27.3%
Share of land USGS rates moderate or high potential
Tests reported
2
Too few for a share
- Rusk
- 2
- Needed
- 30
2008 to 2017, laboratory
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 Rusk 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
Rusk County, At a glance
Rusk 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
Radon tests reported for Rusk County, 2008 to 2017, laboratory
CDC holds 2 reported tests for Rusk County over the 2008 to 2017 laboratory totals, with a median of 0.4 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Rusk County beside the counties around it is how this page reads it.
What these figures count
Only 2 tests were reported to CDC for Rusk County over 2008 to 2017 (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: 2008 to 2017, laboratory. Measured data period: 2006 to 2017 (every CDC figure on file).
Rusk County, Compared
Rusk County radon figures, compared
Calculated by Radon411CDC's largest figure for Rusk County rests on 2 tests over the 2008 to 2017 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 50.0 points and no rank or comparison is drawn from it. Results reached as high as 0.7 pCi/L, with a middle value of 0.4 pCi/L.
Smith County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 9.1% of its tests at or above 4 pCi/L. Farther out, Dallas County (126 miles away) at 8.7%, Collin County (129 miles away) at 7.7% and Montgomery County (132 miles away) at 7.1% 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 Rusk 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.
Rusk County, Geology
The ground under Rusk County
PredictedUSGS's geologic map puts all of Rusk County's mapped land in one class: low radon potential. All of it lies in the area the map calls East Texas Province, to which USGS gives a radon index of 6, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| East Texas Province | Cretaceous through Quaternary marine sandstone, shale, chalk, limestone, siltstone, clay, and lignite. | Low | 6 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Rusk County beside the ground around it
Across Texas 0.5% of the land is rated high; none of Rusk 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
Rusk County, Local resources
Radon testing and mitigation in Rusk 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
Rusk County, Questions
Questions about radon in Rusk County
Are radon levels high in Rusk County?
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Rusk County, Texas were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.4 pCi/L. Smith County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 9.1% of its tests at or above 4 pCi/L.
Which counties border Rusk County?
Rusk County borders 7 counties: Gregg County, Panola County, Cherokee County, Smith County, Harrison County, Nacogdoches County and Shelby County.
Products
Rusk County, Products
Testing a home in Rusk County
No CDC figure names Rusk County; the nearest county with one, Smith County (35 miles away), reported 9.1% 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 Rusk 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
MonitorForensics Detectors
FD-65-RADON rechargeable radon detector with a color screen
- 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
Rusk County, Bordering counties
Counties bordering Rusk County
Calculated by Radon411- Radon levels in Smith CountyEPA zone 3
9.1%at or above 4 pCi/L
Median 0.8 pCi/L · 33 tests
- Radon levels in Gregg CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.9 pCi/L · 13 tests
- Radon levels in Panola CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.6 pCi/L · 2 tests
- Radon levels in Cherokee CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 1 test
- Radon levels in Harrison CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.2 pCi/L · 4 tests
- Radon levels in Nacogdoches CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 1.0 pCi/L · 6 tests
- Radon levels in Shelby CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Rusk County, Cities and towns
Cities and towns in Rusk County
The Census Bureau estimates 54,854 residents in Rusk County for July 1, 2025, 2,599 more than in 2020 (+5.0%). That works out to 59 people per square mile of land. Kilgore, the largest place on its list (13,531 residents in all), extends beyond Rusk County, so no share of the total is worked out for it. Reported testing is thin here: 2 tests over 2008 to 2017, or under 0.1 for every 1,000 residents (2025 estimate), where Texas as a whole comes to 0.1.
From Kilgore to Reklaw, CDC publishes no figure by town: each reads Rusk County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Kilgoreextends beyond Rusk County | 13,531 | +1.4% | Counted whole |
| Henderson | 13,496 | +1.7% | 24.6% |
| Overtonextends beyond Rusk County | 2,315 | +1.8% | Counted whole |
| Tatumextends beyond Rusk County | 1,403 | +4.1% | Counted whole |
| New London | 993 | +3.0% | 1.8% |
| Mount Enterprise | 517 | +2.2% | 0.9% |
| Eastonextends beyond Rusk County | 507 | +3.0% | Counted whole |
| Reklawextends beyond Rusk County | 349 | +4.2% | Counted whole |
8 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). A place that extends beyond Rusk County is counted whole, so it has no share.
Rusk County, Homes
Homes in Rusk County
Of Rusk County's 21,258 homes, 75% are detached houses, against 65% across Texas; 19% are mobile homes. The homes are older than Texas' as a whole: half were built before 1980 (1990 for Texas), and 24% date from before 1960. Owners live in 80% of the occupied homes (Texas: 63%), so for most households a test and a fix are their own to order.
| Homes | Rusk County | Texas |
|---|---|---|
| Housing units | 21,258 | 11,890,808 |
| Detached houses | 75% | 65% |
| In buildings of 5 or more | 2% | 21% |
| Mobile homes | 19% | 7% |
| Built before 1960 | 24% | 13% |
| Built since 2000 | 25% | 37% |
| Middle year built | 1980 | 1990 |
| Owner-occupied | 80% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.