Short-term kit
RA400 short-term liquid scintillation radon test kit, lab fee included
- Lab fee included
Method: Liquid scintillation
In home: 48 to 96 hours
Locations and reports
Radon Levels in Wabash County, Illinois
EPA puts Wabash County in Zone 2, its middle radon zone, and only 6 radon tests from it are on file with CDC (2017). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
30.8%
12.9 pts below IL
- Wabash
- 30.8%
- Illinois
- 43.7%
39 tests, 2007 to 2016
Median result
2.9pCi/L
Below action level
- Wabash
- 2.9 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2007 to 2016
Tests reported
39
90th of 92 by tests
- Wabash
- 39
- Cook
- 13,699
Reported to CDC before any fix, 2007 to 2016
EPA radon zone
Zone 2
Moderate potential
- 1
- Zone 2
- 3
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Rank in Illinois
69 of 92
Middle half
- Wabash
- 30.8%
- Stark
- 79.4%
By share, of 92 with 30+ tests
Read a result for Wabash County
Starts at Wabash County's median, 2.9 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 2.9 pCi/L
Between 2 and 4 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Wabash County's median reported result, 2007 to 2016.
The data
Wabash County, At a glance
Wabash County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Wabash 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 Wabash County, 2017
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 100.0% |
| 2015 | 0.0% |
| 2017 | 50.0% |
2017: 50.0%. Across these years the share ran from 0.0% to 100.0%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 6 tests were reported to CDC for Wabash County over 2017, 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: 2017. Measured data period: 2005 to 2017 (every CDC figure on file).
Wabash County, Compared
Wabash County radon figures, compared
Calculated by Radon411In Wabash County, about 3 in 10 reported tests over the 2007 to 2016 laboratory totals (12 of 39) were at or above EPA's action level. Against the national pool of 35.8%, the gap is 5.0 points lower. Across 102 Illinois counties pooled together, 43.7% of tests reached that level, so Wabash County runs 12.9 points below its state.
The newest figure, in 2017, counts only 6 tests (50.0% at or above 4 pCi/L), too few to compare, so this reading uses the 39-test figure.
Of 5 neighbours with a figure, 2 reported a larger share at or above 4 pCi/L and 3 a smaller one; the spread is 15.2% (Lawrence County) to 41.8% (Knox County, IN). By share, Wabash County is 69th of 92 Illinois counties with 30 or more tests for the same period.
Half the tests came in under 2.9 pCi/L and half over it; the single highest reached 9.4 pCi/L. Below the action level, 18 tests (46.2%) came in under 2 pCi/L, against 31.2% statewide, and 9 tests (23.1%) fell between 2 and 4, against 25.1% statewide.
Zone 2 on EPA's map (predicted average between 2 and 4 pCi/L) and a 30.8% share point the same way here. USGS geology rates 100% of the county's land moderate radon potential.
The busiest year on file was 2014, with 6 tests reported; the quietest, 2015, had 3.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Wabash County, Geology
The ground under Wabash County
PredictedUSGS's geologic map puts all of Wabash County's mapped land in one class: moderate radon potential. 99.0% of it lies in the area the map calls Southern Central Lowland Province, to which USGS gives a radon index of 9, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Southern Central Lowland Province | Illinoian glacial deposits, sandstone, and gray shale. | Moderate | 9 | 99.0% |
| Wabash Lowland | Loess, pre-Wisconsinan glacial deposits, Pennsylvanian shale, sandstone, and carbonate bedrock. | Moderate | 10 | 1.0% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Wabash County beside the ground around it
Across Illinois 64.5% of the land is rated high; none of Wabash County's is. Of the 6 counties that border it, none has as large a share of moderate-potential ground; Edwards County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Wabash County, Local resources
Radon testing and mitigation in Wabash County
- IEMA-OHS Radon ProgramIEMA-OHS Radon Program, run by Illinois Emergency Management Agency and Office of Homeland Security, licenses or certifies radon professionals and states the rule for disclosing radon when a home is sold, and answers questions about testing and mitigation in Illinois.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsAsk the program whether it has free or discounted kits, or compare kits you can buy.
- Compare kits
- Professionals in Illinois339 professionals are listed in Illinois.
What Illinois's program says
- Phone
- (800) 325-1245
- Licensing of radon professionals
The Agency also licenses and regulates the individuals who provide radon measurement and mitigation to the public.
- Disclosure when a home is sold or rented
Illinois Radon Awareness Act - This is the legislation that requires the seller to provide to the buyer of any interest in residential real property the IEMA-OHS pamphlet entitled "Radon Testing Guidelines for Real Estate Transactions" and the Illinois Disclosure of Information on Radon Hazards.
What it means
Wabash County, Questions
Questions about radon in Wabash County
Are radon levels high in Wabash County?
In 2017, 50.0% of the radon tests reported to CDC for Wabash County, Illinois were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.7 pCi/L. Of 92 Illinois counties with 30 or more tests for the same period, 68 reported a higher share; pooled, the state comes to 43.7%.
Which counties border Wabash County?
Wabash County borders 6 counties: Edwards County, IL, Gibson County, IN, Lawrence County, IL, Richland County, IL, White County, IL and Knox County, IN.
Products
Wabash County, Products
Testing a home in Wabash County
In Wabash County, 30.8% of 39 tests reported to CDC over the 2007 to 2016 laboratory totals reached 4 pCi/L, against 43.7% pooled across Illinois. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Wabash County; a long-term test tells the year-round average.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL416 long-term radon test kit, lab fee included
- Lab fee included
Method: Alpha track
In home: 90 days to 12 months
Monitor
RadonPro Wi-Fi radon monitor with a built-in Geiger counter
- C-NRPP 2024/25: Not included
- Plug-in
- Wi-Fi
- Alarm
- Screen, app
First reading: Within 5 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Wabash County, Bordering counties
Counties bordering Wabash County
Calculated by Radon411- Radon levels in Knox County, INEPA zone 2
41.8%at or above 4 pCi/L
Median 3.1 pCi/L · 55 tests · 11.0 points above Wabash County
- Radon levels in Gibson County, INEPA zone 2
41.7%at or above 4 pCi/L
Median 3.4 pCi/L · 108 tests · 10.9 points above Wabash County
- Radon levels in White County, ILEPA zone 2
25.0%at or above 4 pCi/L
Median 2.5 pCi/L · 40 tests · 5.8 points below Wabash County
- Radon levels in Edwards County, ILEPA zone 2
22.2%at or above 4 pCi/L
Median 2.1 pCi/L · 18 tests · 8.6 points below Wabash County
- Radon levels in Richland County, ILEPA zone 2
19.3%at or above 4 pCi/L
Median 1.9 pCi/L · 140 tests · 11.5 points below Wabash County
- Radon levels in Lawrence County, ILEPA zone 2
15.2%at or above 4 pCi/L
Median 1.8 pCi/L · 46 tests · 15.6 points below Wabash County
Wabash County, Cities and towns
Cities and towns in Wabash County
About 10,907 people live in Wabash County by the Census Bureau's estimate for July 1, 2025, 412 fewer than in 2020 (−3.6%). That works out to 49 people per square mile of land. Mount Carmel alone is home to 6,723 of them, 61.6% of the total. Together its 4 incorporated places hold 69.4% of those residents; the other 30.6% live outside any of them. Reported testing is thin here: 39 tests over 2007 to 2016, or 3.6 for every 1,000 residents (2025 estimate), where Illinois as a whole comes to 8.3.
From Mount Carmel to Keensburg, CDC publishes no figure by town: each reads Wabash County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Mount Carmel | 6,723 | −3.7% | 61.6% |
| Allendale | 437 | −4.0% | 4.0% |
| Bellmont | 241 | −2.8% | 2.2% |
| Keensburg | 170 | −3.4% | 1.6% |
4 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).
Wabash County, Homes
Homes in Wabash County
Wabash County is a place of houses on their own lots: 78% of its 5,416 homes are detached single-family houses, against 58% across Illinois. Half of its homes were built before 1967, close to Illinois' 1970: 45% date from before 1960 and 10% from 2000 or later. Owners live in 75% of the occupied homes (Illinois: 67%), so for most households a test and a fix are their own to order.
| Homes | Wabash County | Illinois |
|---|---|---|
| Housing units | 5,416 | 5,443,501 |
| Detached houses | 78% | 58% |
| In buildings of 5 or more | 7% | 22% |
| Mobile homes | 11% | 2% |
| Built before 1960 | 45% | 38% |
| Built since 2000 | 10% | 16% |
| Middle year built | 1967 | 1970 |
| Owner-occupied | 75% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.