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
Radon Levels in Huntington County, Indiana
EPA puts Huntington County in Zone 1, its highest radon zone, and high results are common there: 43.8% of the 169 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
43.8%
4.9 pts above IN
- Huntington
- 43.8%
- Indiana
- 38.9%
169 tests, 2008 to 2017
Median result
3.5pCi/L
Below action level
- Huntington
- 3.5 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2008 to 2017
Tests reported
169
32nd of 69 by tests
- Huntington
- 169
- St. Joseph
- 7,346
Reported to CDC before any fix, 2008 to 2017
EPA radon zone
Zone 1
Highest potential
- Zone 1
- 2
- 3
1 highest, 3 lowest
EPA predicts over 4 pCi/L indoors
Rank in Indiana
33 of 69
Middle half
- Huntington
- 43.8%
- Miami
- 63.3%
By share, of 69 with 30+ tests
Read a result for Huntington County
Starts at Huntington County's median, 3.5 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 3.5 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. Huntington County's median reported result, 2008 to 2017.
The data
Huntington County, At a glance
Huntington County at a glance
Predicted: EPA radon zone
EPA Zone 1: highest predicted potential
EPA puts all of Huntington County in
USGS geologic potential: High across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Huntington County, 2008 to 2017, laboratory
Under 2 pCi/L: 29%2 to 4 pCi/L: 27%4 pCi/L and above: 44%
Of 169 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 49 | 29.0% |
| 2 to 4 pCi/L | 46 | 27.2% |
| 4 pCi/L and above | 74 | 43.8% |
What these figures count
These are the 169 tests reported to CDC for Huntington 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).
Huntington County, Compared
Huntington County radon figures, compared
Calculated by Radon411In Huntington County, about 4 in 10 reported tests over the 2008 to 2017 laboratory totals (74 of 169) were at or above EPA's action level. Against the national pool of 35.7%, the gap is 8.1 points higher. Across 92 Indiana counties pooled together, 38.9% of tests reached that level, so Huntington County runs 4.9 points above its state.
Of 5 neighbours with a figure, 4 reported a larger share at or above 4 pCi/L and 1 a smaller one; the spread is 41.8% (Allen County) to 59.3% (Wabash County). By share, Huntington County is 33rd of 69 Indiana counties with 30 or more tests for the same period.
Half the tests came in under 3.5 pCi/L and half over it; the single highest reached 19.1 pCi/L. Below the action level, 49 tests (29.0%) came in under 2 pCi/L, against 32.8% statewide, and 46 tests (27.2%) fell between 2 and 4, against 28.3% statewide.
Zone 1 on EPA's map (predicted average above 4 pCi/L) and a 43.8% share point the same way here. USGS geology rates 100% of the county's land high radon potential. CDC also counts 28 tests taken after mitigation in Huntington County for the same period: tests in homes where a fix was already in.
CDC's ten-year totals for Huntington County went from 142 tests (2005 to 2014) to 169 (2008 to 2017), the share going from 45.8% to 43.8%.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Huntington County, Geology
The ground under Huntington County
PredictedUSGS's geologic map puts all of Huntington 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.
Huntington County beside the ground around it
Huntington County has more high-potential ground than Indiana as a whole: 100% of its land against 56.6%. Of the 5 counties that border it, none has as large a share of high-potential ground; Grant County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Huntington County, Local resources
Radon testing and mitigation in Huntington County
- Indiana's radon programIndiana Department of HealthIndiana's radon program licenses or certifies radon professionals and offers free or discounted test kits, and answers questions about testing and mitigation in Indiana.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
To purchase a low-cost radon short term or long term test kit, please visit the American Lung Association
- Compare kits
- Professionals in Indiana17 professionals are listed in Indiana.
What Indiana's program says
- Phone
- 1-800-272-9723
- Licensing of radon professionals
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
Huntington County, Questions
Questions about radon in Huntington County
Are radon levels high in Huntington County?
Over the 2008 to 2017 laboratory totals, 43.8% of the radon tests reported to CDC for Huntington County, Indiana were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.5 pCi/L. Of 69 Indiana counties with 30 or more tests for the same period, 32 reported a higher share; pooled, the state comes to 38.9%.
Which counties border Huntington County?
Huntington County borders 5 counties: Wells County, Wabash County, Grant County, Whitley County and Allen County.
Products
Huntington County, Products
Testing a home in Huntington County
In Huntington County, 43.8% of 169 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 Huntington 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 monitors3
See every kit and monitor
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
Short-term kitFirst Alert
RD1 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 2 to 4 days
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Huntington County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Huntington County
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Huntington County, Bordering counties
Counties bordering Huntington County
Calculated by Radon411- Radon levels in Wabash CountyEPA zone 1
59.3%at or above 4 pCi/L
Median 5.8 pCi/L · 91 tests · 15.5 points above Huntington County
- Radon levels in Grant CountyEPA zone 1
58.2%at or above 4 pCi/L
Median 4.6 pCi/L · 79 tests · 14.4 points above Huntington County
- Radon levels in Whitley CountyEPA zone 1
51.6%at or above 4 pCi/L
Median 4.0 pCi/L · 184 tests · 7.8 points above Huntington County
- Radon levels in Wells CountyEPA zone 1
47.8%at or above 4 pCi/L
Median 3.6 pCi/L · 161 tests · 4.0 points above Huntington County
- Radon levels in Allen CountyEPA zone 1
41.8%at or above 4 pCi/L
Median 3.3 pCi/L · 3,990 tests · 2.0 points below Huntington County
Huntington County, Cities and towns
Cities and towns in Huntington County
The Census Bureau estimates 37,224 residents in Huntington County for July 1, 2025, 578 more than in 2020 (+1.6%). That works out to 97 people per square mile of land. Its largest town, Huntington, has 17,167 residents, 46.1% of the total. CDC's 169 reported tests for 2008 to 2017 work out to 4.5 per 1,000 residents (2025 estimate), close to Indiana's 6.2.
From Huntington to Mount Etna, CDC publishes no figure by town: each reads Huntington County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Huntington | 17,167 | +0.9% | 46.1% |
| Roanoke | 1,811 | +2.6% | 4.9% |
| Warren | 1,209 | +2.5% | 3.2% |
| Markleextends beyond Huntington County | 1,086 | +1.5% | Counted whole |
| Andrews | 1,062 | +1.8% | 2.9% |
| Mount Etna | 114 | +1.8% | 0.3% |
6 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 Huntington County is counted whole, so it has no share.
Huntington County, Homes
Homes in Huntington County
Huntington County is a place of houses on their own lots: 84% of its 16,275 homes are detached single-family houses, against 73% across Indiana. The homes are older than Indiana's as a whole: half were built before 1964 (1976 for Indiana), and 47% date from before 1960. Owners live in 76% of the occupied homes (Indiana: 70%), so for most households a test and a fix are their own to order.
| Homes | Huntington County | Indiana |
|---|---|---|
| Housing units | 16,275 | 2,953,344 |
| Detached houses | 84% | 73% |
| In buildings of 5 or more | 6% | 13% |
| Mobile homes | 3% | 4% |
| Built before 1960 | 47% | 32% |
| Built since 2000 | 15% | 21% |
| Middle year built | 1964 | 1976 |
| Owner-occupied | 76% | 70% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.