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 Fulton County, Ohio
EPA puts Fulton County in Zone 2, its middle radon zone, and high results are common there: 45.2% of the 62 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
45.2%
7.1 pts below OH
- Fulton
- 45.2%
- Ohio
- 52.3%
62 tests, 2008 to 2017
Median result
3.1pCi/L
Below action level
- Fulton
- 3.1 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2008 to 2017
Tests reported
62
72nd of 79 by tests
- Fulton
- 62
- Franklin
- 16,142
Reported to CDC before any fix, 2008 to 2017
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 Ohio
59 of 79
Middle half
- Fulton
- 45.2%
- Pickaway
- 81.4%
By share, of 79 with 30+ tests
Read a result for Fulton County
Starts at Fulton County's median, 3.1 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 3.1 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. Fulton County's median reported result, 2008 to 2017.
The data
Fulton County, At a glance
Fulton County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Fulton County is a
USGS geologic potential: Moderate across 65% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Fulton County, 2008 to 2017, laboratory
Under 2 pCi/L: 34%2 to 4 pCi/L: 21%4 pCi/L and above: 45%
Of 62 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 21 | 33.9% |
| 2 to 4 pCi/L | 13 | 21.0% |
| 4 pCi/L and above | 28 | 45.2% |
What these figures count
These are the 62 tests reported to CDC for Fulton 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).
Fulton County, Compared
Fulton County radon figures, compared
Calculated by Radon411In Fulton County, about 5 in 10 reported tests over the 2008 to 2017 laboratory totals (28 of 62) were at or above EPA's action level. Against the national pool of 35.7%, the gap is 9.5 points higher. Across 88 Ohio counties pooled together, 52.3% of tests reached that level, so Fulton County runs 7.1 points below its state.
Of 4 neighbours with a figure, 3 reported a larger share at or above 4 pCi/L and 1 a smaller one; the spread is 40.2% (Lucas County) to 61.8% (Henry County). By share, Fulton County is 59th of 79 Ohio counties with 30 or more tests for the same period.
Half the tests came in under 3.1 pCi/L and half over it; the single highest reached 19.4 pCi/L. Below the action level, 21 tests (33.9%) came in under 2 pCi/L, against 23.1% statewide, and 13 tests (21.0%) fell between 2 and 4, against 24.6% statewide.
Zone 2 on EPA's map (predicted average between 2 and 4 pCi/L) and a 45.2% share point the same way here. USGS geology rates 65% of the county's land moderate radon potential. CDC also counts 11 tests taken after mitigation in Fulton County for the same period: tests in homes where a fix was already in.
CDC's ten-year totals for Fulton County went from 67 tests (2005 to 2014) to 62 (2008 to 2017), the share going from 43.3% to 45.2%.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Fulton County, Geology
The ground under Fulton County
PredictedUSGS's geologic map splits Fulton County: 64.9% of its land is moderate radon potential and 35.1% high. The map puts 64.6% of Fulton County in the area it calls Lake Plains and 35.1% in Till Plains. USGS gives the first a radon index of 10, in the moderate band (9 to 11), and the second 14, in the high band (12 to 17).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Lake Plains | Glacial lake deposits, Devonian shale and limestone. | Moderate | 10 | 64.6% |
| Till Plains | Glacial deposits underlain by Ordovician through Devonian limestone and shale. | High | 14 | 35.1% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Fulton County beside the ground around it
Ohio as a whole has more high-potential ground than Fulton County: 62.8% of its land, against 35.1% here. Of the 5 counties that border it, 4 have more high-potential ground, Hillsdale County, MI the most at 100%.
The map rates the ground, not the air in any home.
Local help
Fulton County, Local resources
Radon testing and mitigation in Fulton County
- Radon Education and Licensing ProgramRadon Education and Licensing Program, run by Ohio Department of Health, licenses or certifies radon professionals and offers free or discounted test kits, and answers questions about testing and mitigation in Ohio.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
Free radon test kits are available for Ohio homeowners.
- Compare kits
- Professionals in Ohio479 professionals are listed in Ohio.
What Ohio's program says
- Phone
- 614-728-0272
- indoor.radon@odh.ohio.gov
- Licensing of radon professionals
This program licenses companies and persons directly involved with the radon testing and mitigation industry.
What it means
Fulton County, Questions
Questions about radon in Fulton County
Are radon levels high in Fulton County?
Over the 2008 to 2017 laboratory totals, 45.2% of the radon tests reported to CDC for Fulton County, Ohio were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.1 pCi/L. Of 79 Ohio counties with 30 or more tests for the same period, 58 reported a higher share; pooled, the state comes to 52.3%.
Which counties border Fulton County?
Fulton County borders 5 counties: Henry County, OH, Lucas County, OH, Lenawee County, MI, Williams County, OH and Hillsdale County, MI.
Products
Fulton County, Products
Testing a home in Fulton County
In Fulton County, 45.2% of 62 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 52.3% pooled across Ohio. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Fulton 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
MonitorAEGTEST
HOUND-3786 rechargeable radon monitor with a 3.5-inch color screen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Ion chamber
First reading: Within 10 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Fulton County, Bordering counties
Counties bordering Fulton County
Calculated by Radon411- Radon levels in Henry County, OHEPA zone 2
61.8%at or above 4 pCi/L
Median 5.3 pCi/L · 34 tests · 16.6 points above Fulton County
- Radon levels in Lenawee County, MIEPA zone 1
56.7%at or above 4 pCi/L
Median 4.6 pCi/L · 1,907 tests · 11.5 points above Fulton County
- Radon levels in Hillsdale County, MIEPA zone 1
54.8%at or above 4 pCi/L
Median 4.4 pCi/L · 2,086 tests · 9.6 points above Fulton County
- Radon levels in Williams County, OHEPA zone 2
42.9%at or above 4 pCi/L
Median 3.3 pCi/L · 28 tests · 2.3 points below Fulton County
- Radon levels in Lucas County, OHEPA zone 2
40.2%at or above 4 pCi/L
Median 3.0 pCi/L · 1,381 tests · 5.0 points below Fulton County
Fulton County, Cities and towns
Cities and towns in Fulton County
About 41,853 people live in Fulton County by the Census Bureau's estimate for July 1, 2025, 794 fewer than in 2020 (−1.9%). That works out to 103 people per square mile of land. No town dominates: Wauseon, the largest, has 7,430 residents, 17.8% of the total. Reported testing is thin here: 62 tests over 2008 to 2017, or 1.5 for every 1,000 residents (2025 estimate), where Ohio as a whole comes to 8.3.
From Wauseon to Metamora, CDC publishes no figure by town: each reads Fulton County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Wauseon | 7,430 | −1.7% | 17.8% |
| Archbold | 4,417 | −2.0% | 10.6% |
| Swantonextends beyond Fulton County | 3,866 | −0.4% | Counted whole |
| Delta | 3,291 | −1.0% | 7.9% |
| Fayette | 1,278 | −2.0% | 3.1% |
| Lyons | 581 | −2.8% | 1.4% |
| Metamora | 548 | −2.8% | 1.3% |
7 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 Fulton County is counted whole, so it has no share.
Fulton County, Homes
Homes in Fulton County
Fulton County is a place of houses on their own lots: 82% of its 17,708 homes are detached single-family houses, against 69% across Ohio. Half of its homes were built before 1970, close to Ohio's 1970: 41% date from before 1960 and 15% from 2000 or later. Owners live in 81% of the occupied homes (Ohio: 67%), so for most households a test and a fix are their own to order.
| Homes | Fulton County | Ohio |
|---|---|---|
| Housing units | 17,708 | 5,271,573 |
| Detached houses | 82% | 69% |
| In buildings of 5 or more | 3% | 15% |
| Mobile homes | 5% | 4% |
| Built before 1960 | 41% | 38% |
| Built since 2000 | 15% | 16% |
| Middle year built | 1970 | 1970 |
| Owner-occupied | 81% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.