
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
Locations and reports
EPA puts Wabash County in Zone 1, its highest radon zone, and high results are common there: 59.3% of the 91 radon tests reported to CDC (2008 to 2017, laboratory totals) came back at or above 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
59.3%
20.4 pts above IN
91 tests, 2008 to 2017
Median result
5.8pCi/L
Action level reached
Midpoint of the tests, 2008 to 2017
Tests reported
91
47th of 69 by tests
Reported to CDC before any fix, 2008 to 2017
EPA radon zone
Zone 1
Highest potential
1 highest, 3 lowest
EPA predicts over 4 pCi/L indoors
Rank in Indiana
5 of 69
Top quarter
By share, of 69 with 30+ tests
Read a result for Wabash County
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 5.8 pCi/L
At or above 4 pCi/L
This result is at or above 4 pCi/L. EPA recommends fixing a home when the radon level is 4 pCi/L or higher. Wabash County's median reported result, 2008 to 2017.
The data
Wabash County, At a glance
Predicted: EPA radon zone
EPA puts all of Wabash County in
USGS geologic potential: High across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Of 91 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 13 | 14.3% |
| 2 to 4 pCi/L | 24 | 26.4% |
| 4 pCi/L and above | 54 | 59.3% |
These are the 91 tests reported to CDC for Wabash County over 2008 to 2017 (laboratory totals), many from homes being sold or already suspected of a problem: they describe the county's reported tests, not this house.
Measured: CDC tracking data. Figure above: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).
Wabash County, Compared
More than half: 59.3% of the 91 radon tests reported to CDC for Wabash County over the 2008 to 2017 laboratory totals read at least 4 pCi/L. That places it 5th of 69 Indiana counties with 30 or more tests for the same period. That is 20.4 points above the 38.9% pooled from 92 Indiana counties.
The median result, 5.8 pCi/L, sits above EPA's 4 pCi/L action level, and the top reported result was 42.5 pCi/L. The rest split 14.3% under 2 pCi/L and 26.4% from 2 to 4 (Indiana: 32.8% and 28.3%). Zone 1 on EPA's map (predicted average above 4 pCi/L) and a 59.3% share point the same way here.
1 of its 6 bordering counties with figures ran higher, led by Miami County at 63.3%; Huntington County reported 43.8%. Statewide for the same period, Miami County reported the highest share (63.3%) and Jasper County the lowest (14.1%).
CDC's ten-year totals for Wabash County went from 62 tests (2005 to 2014) to 91 (2008 to 2017), the share going from 50.0% to 59.3%.
Nationally, every county with a figure for the same period pools to 35.7%; Wabash County sits 23.6 points above it. CDC also counts 13 tests taken after mitigation in Wabash County for the same period: tests in homes where a fix was already in.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Wabash County, Geology
USGS's geologic map puts all of Wabash County's mapped land in one class: high radon potential. All of it lies in the area the map calls Huron-Erie Lobe, to which USGS gives a radon index of 13, in the high band (12 to 17).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Huron-Erie Lobe | Calcareous clayey and loamy glacial deposits derived from marine carbonate and clastic sedimentary rocks. | High | 13 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Wabash County has more high-potential ground than Indiana as a whole: 100% of its land against 56.6%. Of the 6 counties that border it, none has as large a share of high-potential ground; Fulton County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Wabash County, Local resources
To purchase a low-cost radon short term or long term test kit, please visit the American Lung Association
According to the Indiana Radon Rule, 410 IAC 5.1, everyone who is serving Indiana by doing radon testing, analysis and mitigation (radon reduction) in residential structures must be certified by the Indiana State Department of Health.
What it means
Wabash County, Questions
Over the 2008 to 2017 laboratory totals, 59.3% of the radon tests reported to CDC for Wabash County, Indiana were at or above 4 pCi/L, and the median reported pre-mitigation result was 5.8 pCi/L. Of 69 Indiana counties with 30 or more tests for the same period, 4 reported a higher share; pooled, the state comes to 38.9%.
Wabash County borders 6 counties: Miami County, Huntington County, Grant County, Whitley County, Fulton County and Kosciusko County.
Products
Wabash County, Products
In Wabash County, 59.3% of 91 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 38.9% pooled across Indiana. In Zone 1 the year-round level in Wabash County is the one to know: a long-term test (more than 90 days) or a monitor, with a short-term kit for a first answer.
Test kits and monitors: 1 of 3
Wabash County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Wabash County
Explore
Wabash County, Bordering counties
63.3%at or above 4 pCi/L
Median 5.3 pCi/L · 30 tests · 4.0 points above Wabash County
58.2%at or above 4 pCi/L
Median 4.6 pCi/L · 79 tests · 1.1 points below Wabash County
51.6%at or above 4 pCi/L
Median 4.0 pCi/L · 184 tests · 7.7 points below Wabash County
50.6%at or above 4 pCi/L
Median 4.0 pCi/L · 1,248 tests · 8.7 points below Wabash County
46.4%at or above 4 pCi/L
Median 3.3 pCi/L · 97 tests · 12.9 points below Wabash County
43.8%at or above 4 pCi/L
Median 3.5 pCi/L · 169 tests · 15.5 points below Wabash County
Wabash County, Cities and towns
About 30,713 people live in Wabash County by the Census Bureau's estimate for July 1, 2025, 219 fewer than in 2020 (−0.7%). That works out to 74 people per square mile of land. Its largest town, Wabash, has 10,190 residents, 33.2% of the total. Together its 5 incorporated places hold 55.4% of those residents; the other 44.6% live outside any of them. Reported testing is thin here: 91 tests over 2008 to 2017, or 3.0 for every 1,000 residents (2025 estimate), where Indiana as a whole comes to 6.2.
From Wabash to Lagro, CDC publishes no figure by town: each reads Wabash County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Wabash | 10,190 | −2.2% | 33.2% |
| North Manchester | 5,230 | −0.8% | 17.0% |
| La Fontaine | 819 | +1.5% | 2.7% |
| Roann | 437 | Level | 1.4% |
| Lagro | 350 | +0.9% | 1.1% |
5 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
Wabash County is a place of houses on their own lots: 83% of its 14,053 homes are detached single-family houses, against 73% across Indiana. The homes are older than Indiana's as a whole: half were built before 1959 (1976 for Indiana), and 51% date from before 1960. Owners live in 80% of the occupied homes (Indiana: 70%), so for most households a test and a fix are their own to order.
| Homes | Wabash County | Indiana |
|---|---|---|
| Housing units | 14,053 | 2,953,344 |
| Detached houses | 83% | 73% |
| In buildings of 5 or more | 5% | 13% |
| Mobile homes | 5% | 4% |
| Built before 1960 | 51% | 32% |
| Built since 2000 | 10% | 21% |
| Middle year built | 1959 | 1976 |
| Owner-occupied | 80% | 70% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.