
Long-term kit![]()
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
Locations and reports
EPA puts Wayne County in Zone 1, its highest radon zone, and high results are common there: 61.8% of the 1,074 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
61.8%
9.5 pts above OH
1,074 tests, 2008 to 2017
Median result
4.9pCi/L
Action level reached
Midpoint of the tests, 2008 to 2017
Tests reported
1,074
27th of 79 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 Ohio
21 of 79
Middle half
By share, of 79 with 30+ tests
Read a result for Wayne County
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 4.9 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. Wayne County's median reported result, 2008 to 2017.
The data
Wayne County, At a glance
Predicted: EPA radon zone
EPA puts all of Wayne County in
USGS geologic potential: High across 65% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Of 1,074 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 159 | 14.8% |
| 2 to 4 pCi/L | 251 | 23.4% |
| 4 pCi/L and above | 664 | 61.8% |
These are the 1,074 tests reported to CDC for Wayne 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).
Wayne County, Compared
More than half: 61.8% of the 1,074 radon tests reported to CDC for Wayne County over the 2008 to 2017 laboratory totals read at least 4 pCi/L. That places it 21st of 79 Ohio counties with 30 or more tests for the same period. That is 9.5 points above the 52.3% pooled from 88 Ohio counties.
The median result, 4.9 pCi/L, sits above EPA's 4 pCi/L action level, and the top reported result was 504.7 pCi/L. The rest split 14.8% under 2 pCi/L and 23.4% from 2 to 4 (Ohio: 23.1% and 24.6%). Zone 1 on EPA's map (predicted average above 4 pCi/L) and a 61.8% share point the same way here.
2 of its 5 bordering counties with figures ran higher, led by Holmes County at 64.2%; Summit County reported 38.7%. Statewide for the same period, Pickaway County reported the highest share (81.4%) and Cuyahoga County the lowest (21.7%).
CDC's ten-year totals for Wayne County went from 813 tests (2005 to 2014) to 1,074 (2008 to 2017), the share going from 61.9% to 61.8%.
Nationally, every county with a figure for the same period pools to 35.7%; Wayne County sits 26.1 points above it. CDC also counts 107 tests taken after mitigation in Wayne 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.
Wayne County, Geology
USGS's geologic map splits Wayne County: 65.4% of its land is high radon potential and 34.6% moderate. The map puts 65.4% of Wayne County in the area it calls Area of Elevated Radioactivity and 34.6% in Glaciated Plateau. USGS gives the first a radon index of 12, in the high band (12 to 17), and the second 11, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Area of Elevated Radioactivity | Pennsylvanian shale, sandstone, coal, and limestone. | High | 12 | 65.4% |
| Glaciated Plateau | Devonian, Mississippian and Permian carbonates and shales. | Moderate | 11 | 34.6% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
On high-potential ground Wayne County is close to Ohio as a whole: 65.4% of its land against 62.8%. Of the 5 counties that border it, 2 have more high-potential ground, Holmes County the most at 100%.
The map rates the ground, not the air in any home.
Local help
Wayne County, Local resources
Listed radon businesses with an address in Wayne County:
Free radon test kits are available for Ohio homeowners.
Listed radon professionals by town: Norton, Creston, Dalton, West Salem, Burbank
This program licenses companies and persons directly involved with the radon testing and mitigation industry.
What it means
Wayne County, Questions
Over the 2008 to 2017 laboratory totals, 61.8% of the radon tests reported to CDC for Wayne County, Ohio were at or above 4 pCi/L, and the median reported pre-mitigation result was 4.9 pCi/L. Of 79 Ohio counties with 30 or more tests for the same period, 20 reported a higher share; pooled, the state comes to 52.3%.
Wayne County borders 5 counties: Holmes County, Ashland County, Medina County, Stark County and Summit County.
Products
Wayne County, Products
In Wayne County, 61.8% of 1,074 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 52.3% pooled across Ohio. In Zone 1 the year-round level in Wayne 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
Wayne County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Wayne County
Explore
Wayne County, Bordering counties
64.2%at or above 4 pCi/L
Median 5.8 pCi/L · 67 tests · 2.4 points above Wayne County
62.9%at or above 4 pCi/L
Median 5.4 pCi/L · 340 tests · 1.1 points above Wayne County
60.1%at or above 4 pCi/L
Median 4.9 pCi/L · 3,317 tests · 1.7 points below Wayne County
43.4%at or above 4 pCi/L
Median 3.5 pCi/L · 2,139 tests · 18.4 points below Wayne County
38.7%at or above 4 pCi/L
Median 3.1 pCi/L · 6,486 tests · 23.1 points below Wayne County
Wayne County, Cities and towns
Wayne County's population has barely moved since 2020: 116,758 residents on July 1, 2025 against 116,899 then, by the Census Bureau's estimates. That works out to 210 people per square mile of land. Its largest town, Wooster, has 27,115 residents, 23.2% of the total. CDC's 1,074 reported tests for 2008 to 2017 work out to 9.2 per 1,000 residents (2025 estimate), close to Ohio's 8.3.
From Wooster to Congress, CDC publishes no figure by town: each reads Wayne County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Wooster | 27,115 | −0.5% | 23.2% |
| Nortonextends beyond Wayne County | 11,493 | −1.4% | Counted whole |
| Orrville | 8,461 | Level | 7.2% |
| Rittmanextends beyond Wayne County | 6,120 | −0.3% | Counted whole |
| Doylestown | 3,085 | +1.0% | 2.6% |
| Crestonextends beyond Wayne County | 2,143 | +0.3% | Counted whole |
| Dalton | 1,921 | −0.3% | 1.6% |
| Shreve | 1,495 | +0.1% | 1.3% |
| West Salem | 1,430 | −0.1% | 1.2% |
| Smithville | 1,333 | −0.4% | 1.1% |
| Apple Creek | 1,183 | −0.5% | 1.0% |
| Marshallville | 793 | +0.1% | 0.7% |
16 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. “(part)” marks a place that extends into another county. Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025). A place that extends beyond Wayne County is counted whole, so it has no share.
Wayne County, Homes
Wayne County is a place of houses on their own lots: 76% of its 46,804 homes are detached single-family houses, against 69% across Ohio. Half of its homes were built before 1975, close to Ohio's 1970: 31% date from before 1960 and 17% from 2000 or later. Owners live in 76% of the occupied homes (Ohio: 67%), so for most households a test and a fix are their own to order.
| Homes | Wayne County | Ohio |
|---|---|---|
| Housing units | 46,804 | 5,271,573 |
| Detached houses | 76% | 69% |
| In buildings of 5 or more | 7% | 15% |
| Mobile homes | 7% | 4% |
| Built before 1960 | 31% | 38% |
| Built since 2000 | 17% | 16% |
| Middle year built | 1975 | 1970 |
| Owner-occupied | 76% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.