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Ohio Radon Information

Ohio Radon Program:

Radon Website: Website
Radon Contact:
Active Radon Program: Yes
Require License for Radon Professionals: Yes

Ohio is the 34th most expansive state in terms of size and the 7th most populous. It also happens to be the 10th most densely populated state in the entire US.

Ohio does have an active radon program, dedicated to educating citizens about the risks associated with the deadly gas. You can find more information on Radon, testing and mitigation at the official page.

The radon levels in Ohio are above average in many areas of the state. There’s an increased risk for all homeowners, which is why we recommend testing exposure levels at least twice a year.

Ohio Radon Mitigation and Testing

Need your home tested for radon? Already know you have high levels and need a radon reduction system installed? Finding qualified Radon professionals can be difficult, but we've put together a list of Ohio contractors to help you save time.

Ohio Radon Mitigation

We have compiled a list of qualified radon mitigation contractors.
Find Radon Mitigation Contractors here

Ohio Radon Testing

Need your home or office tested for Radon? We have compiled a list of qualified radon testing contractors.
Find Radon Testing Contractors here

Ohio Radon Levels

Map of Ohio Radon Levels

Zone 1 (1): Potential for radon levels above 4 pCi/L according to EPA
Zone 2 (2): Potential for radon levels between 2 pCi/L and 4 pCi/L according to the EPA
Zone 3 (3): Lowest EPA level with expected radon levels at or below 2 pCi/L
Disclaimer: It is strongly recommended that all households, schools and office spaces test radon levels individually. The EPA Radon Zone data is not an indicator of individual test results, but a guideline for strategic planning. Toxic radon levels can be found in all counties, regardless of their zone rating. While we make efforts to keep this information up to date, it is derived from third­party sources which may not be accurate or reflect the most current statistics.

Ohio Radon Statistics

Ohio has 88 counties and 53 (60%) have been assigned Zone 1 counties by the EPA. Zone 1 counties have the highest potential to have homes test higher than 4 pCi/L. Ohio's state radon zone average is 1.4, which is the average of all county zone ratings the EPA has assigned the state, ranking it 14 among all states.

Ohio Radon Contractor License Information

Does Ohio require contractors to be licensed? Yes.

What are the licensing requirements? The requirements are as follows:

1. Attend and complete an approved course.

2. Take and pass the national certification examination offered through the National Radon Safety Board (NRSB) or National Radon Proficiency Program (NRPP).

3. Register with the state radon program.

Those looking for a radon certification can take qualified third party courses offered by the NRPP or AASRT. The state will then endorse said professionals and add them to the official directory.

Ohio Radon Real Estate Requirements

Does the state of Ohio require radon testing for all real estate transactions? No

However both the state of Ohio and the EPA recommend that a home or residence should be tested before a real estate transaction is carried out. Even though Ohio does not require radon testing, we certainly recommend you have a test performed before you purchase a home. If you decide to perform a test after and find elevated levels, there is no reason to panic. Ohio radon mitigation is not expensive compared to the dangers and a system can be implemented in a relatively short period of time.

Browse The National Radon Directory by City

Aberdeen
Ada
Adamsville
Adena
Akron
Albany
Alexandria
Alger
Alledonia
Alliance
Alvada
Alvordton
Amanda
Amelia
Amesville
Amherst
Amsterdam
Andover
Anna
Ansonia
Antwerp
Apple Creek
Arcadia
Arcanum
Archbold
Arlington
Ashland
Ashley
Ashtabula
Ashville
Athens
Attica
Atwater
Aurora
Austinburg
Avon
Avon Lake
Bainbridge
Baltic
Baltimore
Barberton
Barnesville
Batavia
Bay Village
Beach City
Beachwood
Beallsville
Beaver
Beaverdam
Bedford
Bellaire
Bellbrook
Belle Center
Bellefontaine
Bellevue
Bellville
Belmont
Beloit
Belpre
Berea
Bergholz
Berkey
Berlin Center
Berlin Heights
Bethel
Bethesda
Beverly
Bidwell
Big Prairie
Blacklick
Blanchester
Bloomdale
Bloomingburg
Bloomingdale
Bloomville
Blue Creek
Blue Rock
Bluffton
Bolivar
Botkins
Bowerston
Bowling Green
Bradford
Bradner
Brecksville
Bremen
Brewster
Bridgeport
Brilliant
Brinkhaven
Bristolville
Broadview Heights
Brookfield
Brookpark
Brookville
Brunswick
Bryan
Buckland
Bucyrus
Burbank
Burghill
Burgoon
Burton
Butler
Byesville
Cable
Cadiz
Caldwell
Caledonia
Cambridge
Camden
Camp Dennison
Campbell
Canal Fulton
Canal Winchester
Canfield
Canton
Cardington
Carey
Carroll
Carrollton
Casstown
Castalia
Cecil
Cedarville
Celina
Centerburg
Chagrin Falls
Chandlersville
Chardon
Chesapeake
Cheshire
Chesterhill
Chesterland
Chillicothe
Chippewa Lake
Cincinnati
Circleville
Clarington
Clarksburg
Clarksville
Clayton
Cleveland
Cleves
Clinton
Cloverdale
Clyde
Coal Run
Coldwater
College Corner
Collins
Columbia Station
Columbiana
Columbus
Columbus Grove
Commercial Point
Conesville
Conneaut
Conover
Continental
Convoy
Coolville
Corning
Cortland
Coshocton
Covington
Creola
Crestline
Creston
Crooksville
Croton
Crown City
Cumberland
Curtice
Custar
Cutler
Cuyahoga Falls
Cygnet
Dalton
Danville
Dayton
De Graff
Deerfield
Defiance
Delaware
Dellroy
Delphos
Delta
Dennison
Deshler
Dexter City
Diamond
Dillonvale
Dola
Dorset
Dover
Doylestown
Dresden
Dublin
Duncan Falls
Dundee
Dunkirk
East Canton
East Liberty
East Liverpool
East Palestine
East Rochester
East Sparta
Eastlake
Eaton
Edgerton
Edison
Edon
Eldorado
Elmore
Elyria
Englewood
Enon
Euclid
Fairborn
Fairfield
Farmdale
Farmersville
Fayette
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Felicity
Findlay
Fleming
Fletcher
Flushing
Forest
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Fostoria
Fowler
Frankfort
Franklin
Franklin Furnace
Frazeysburg
Fredericksburg
Fredericktown
Freeport
Fremont
Fresno
Fulton
Galena
Galion
Gallipolis
Galloway
Gambier
Garrettsville
Gates Mills
Geneva
Genoa
Georgetown
Germantown
Gibsonburg
Girard
Glenford
Glenmont
Glouster
Gnadenhutten
Gomer
Goshen
Grafton
Grand Rapids
Granville
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Graytown
Green Springs
Greenfield
Greenville
Greenwich
Grove City
Groveport
Grover Hill
Guysville
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Hamersville
Hamilton
Hamler
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Hanoverton
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Harpster
Harrison
Harrod
Hartville
Haskins
Haviland
Heath
Hebron
Helena
Hicksville
Hilliard
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Hinckley
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Jenera
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Jewett
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Kent
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Stockport
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