Mold, Insurance And Removal Costs In Ohio
Ohio has 88 counties and 1,209 ZIP code neighborhoods on this guide. At the statewide price level a typical professional mold job runs about $1,400 to $5,550 before rebuild.
1970Median year homes were built
64%Homes built before 1980
33%Homes rented, not owned
$199,200Median home value
5,271,573Housing units
11,780,046People
Half the homes in Ohio were built before 1970, and 64 percent went up before 1980. Older plumbing, roofs and window seals are where slow leaks start, and slow leaks are the mold most home policies leave out.
The counties with the oldest housing are Cuyahoga County (1957), Crawford County (1958), Jefferson County (1958), Seneca County (1958), Sandusky County (1960).
FEMA rates inland flooding high in 6 of 88 Ohio counties. Source FEMA National Risk Index, December 2025.
Ohio Rules On Mold
Ohio Mold And Insurance Rules
- The Ohio seller disclosure form asks if the home was ever checked for mold by a qualified inspector. Residential Property Disclosure Form, Ohio Department of Commerce
- The same Ohio form tells buyers every home has mold and suggests a mold inspection if they are worried. Residential Property Disclosure Form, Ohio Department of Commerce
- Ohio's health department says to fix the water source and remove wet materials, because mold keeps growing while it has water. Emergency Flood Cleanup and Mold, Ohio Department of Health
Every Ohio County
| County | ZIP Codes | Median Year Built | Typical Job Up To | Inland Flood Risk |
|---|---|---|---|---|
| Adams County | 9 | 1982 | $5,300 | Relatively Low |
| Allen County | 13 | 1965 | $5,400 | Relatively Moderate |
| Ashland County | 9 | 1968 | $5,300 | Relatively Low |
| Ashtabula County | 15 | 1962 | $5,650 | Relatively Low |
| Athens County | 14 | 1978 | $5,300 | Relatively Moderate |
| Auglaize County | 10 | 1971 | $5,300 | Relatively Low |
| Belmont County | 23 | 1964 | $5,300 | Relatively Moderate |
| Brown County | 11 | 1982 | $5,700 | Relatively Moderate |
| Butler County | 14 | 1979 | $5,700 | Relatively Moderate |
| Carroll County | 12 | 1973 | $5,350 | Relatively Low |
| Champaign County | 9 | 1968 | $5,300 | Relatively Low |
| Clark County | 15 | 1963 | $5,450 | Relatively Moderate |
| Clermont County | 16 | 1986 | $5,700 | Relatively Moderate |
| Clinton County | 8 | 1976 | $5,300 | Relatively Low |
| Columbiana County | 18 | 1964 | $5,300 | Relatively Moderate |
| Coshocton County | 9 | 1968 | $5,300 | Relatively Low |
| Crawford County | 7 | 1958 | $5,300 | Relatively Low |
| Cuyahoga County | 51 | 1957 | $5,650 | Relatively High |
| Darke County | 16 | 1963 | $5,300 | Relatively Low |
| Defiance County | 7 | 1967 | $5,300 | Relatively Low |
| Delaware County | 9 | 1999 | $5,750 | Relatively Moderate |
| Erie County | 7 | 1966 | $5,350 | Relatively Low |
| Fairfield County | 14 | 1983 | $5,750 | Relatively Moderate |
| Fayette County | 4 | 1970 | $5,300 | Relatively Low |
| Franklin County | 42 | 1979 | $5,750 | Relatively High |
| Fulton County | 8 | 1970 | $5,500 | Relatively Low |
| Gallia County | 7 | 1979 | $5,300 | Relatively Low |
| Geauga County | 11 | 1977 | $5,650 | Relatively Moderate |
| Greene County | 16 | 1976 | $5,550 | Relatively Moderate |
| Guernsey County | 13 | 1972 | $5,300 | Relatively Low |
| Hamilton County | 53 | 1963 | $5,700 | Relatively High |
| Hancock County | 12 | 1972 | $5,300 | Relatively Low |
| Hardin County | 10 | 1969 | $5,300 | Relatively Low |
| Harrison County | 9 | 1965 | $5,300 | Very Low |
| Henry County | 11 | 1963 | $5,300 | Relatively Low |
| Highland County | 7 | 1979 | $5,300 | Relatively Low |
| Hocking County | 9 | 1982 | $5,750 | Relatively Low |
| Holmes County | 15 | 1986 | $5,300 | Relatively Low |
| Huron County | 11 | 1967 | $5,300 | Relatively Low |
| Jackson County | 5 | 1977 | $5,300 | Relatively Low |
| Jefferson County | 20 | 1958 | $5,350 | Relatively Moderate |
| Knox County | 8 | 1972 | $5,300 | Relatively Low |
| Lake County | 8 | 1972 | $5,650 | Relatively Moderate |
| Lawrence County | 9 | 1974 | $5,300 | Relatively Moderate |
| Licking County | 17 | 1978 | $5,750 | Relatively Moderate |
| Logan County | 13 | 1973 | $5,300 | Relatively Low |
| Lorain County | 15 | 1972 | $5,650 | Relatively Moderate |
| Lucas County | 26 | 1962 | $5,500 | Relatively High |
| Madison County | 7 | 1975 | $5,750 | Relatively Low |
| Mahoning County | 27 | 1963 | $5,250 | Relatively Moderate |
| Marion County | 8 | 1963 | $5,300 | Relatively Low |
| Medina County | 13 | 1984 | $5,650 | Relatively Moderate |
| Meigs County | 12 | 1978 | $5,300 | Relatively Low |
| Mercer County | 10 | 1974 | $5,300 | Relatively Low |
| Miami County | 11 | 1970 | $5,550 | Relatively Low |
| Monroe County | 9 | 1974 | $5,300 | Relatively Low |
| Montgomery County | 31 | 1966 | $5,550 | Relatively High |
| Morgan County | 5 | 1975 | $5,300 | Relatively Low |
| Morrow County | 10 | 1979 | $5,750 | Relatively Low |
| Muskingum County | 17 | 1972 | $5,300 | Relatively Moderate |
| Noble County | 8 | 1979 | $5,300 | Relatively Low |
| Ottawa County | 14 | 1974 | $5,350 | Relatively Low |
| Paulding County | 10 | 1969 | $5,300 | Relatively Low |
| Perry County | 11 | 1978 | $5,750 | Relatively Low |
| Pickaway County | 9 | 1978 | $5,750 | Relatively Low |
| Pike County | 5 | 1982 | $5,300 | Relatively Low |
| Portage County | 14 | 1976 | $5,600 | Relatively Moderate |
| Preble County | 11 | 1972 | $5,300 | Relatively Low |
| Putnam County | 13 | 1972 | $5,300 | Relatively Low |
| Richland County | 11 | 1964 | $5,350 | Relatively Low |
| Ross County | 8 | 1973 | $5,300 | Relatively Moderate |
| Sandusky County | 8 | 1960 | $5,300 | Relatively Low |
| Scioto County | 13 | 1968 | $5,300 | Relatively Moderate |
| Seneca County | 14 | 1958 | $5,300 | Relatively Low |
| Shelby County | 11 | 1974 | $5,300 | Relatively Low |
| Stark County | 31 | 1966 | $5,350 | Relatively Moderate |
| Summit County | 32 | 1965 | $5,600 | Relatively High |
| Trumbull County | 25 | 1964 | $5,250 | Relatively Moderate |
| Tuscarawas County | 17 | 1970 | $5,300 | Relatively Moderate |
| Union County | 8 | 1995 | $5,750 | Relatively Low |
| Van Wert County | 8 | 1960 | $5,300 | Very Low |
| Vinton County | 8 | 1982 | $5,300 | Very Low |
| Warren County | 12 | 1994 | $5,700 | Relatively Moderate |
| Washington County | 15 | 1973 | $5,300 | Relatively Moderate |
| Wayne County | 14 | 1975 | $5,300 | Relatively Low |
| Williams County | 10 | 1966 | $5,300 | Relatively Low |
| Wood County | 27 | 1978 | $5,500 | Relatively Moderate |
| Wyandot County | 7 | 1962 | $5,300 | Very Low |
Largest Cities
- Columbus
- Cleveland
- Cincinnati
- Toledo
- Akron
- Dayton
- Parma
- Canton
- Lorain
- Hamilton
- Youngstown
- Kettering
- Cuyahoga Falls
- Lakewood
- Dublin
- Euclid
- Mansfield
- Mentor
- Beavercreek
- Strongsville
- Cleveland Heights
- Fairfield
- Huber Heights
- Reynoldsburg
- Warren
- Upper Arlington
- North Ridgeville
- Gahanna
- Brunswick
- Mason
- Stow
- Westlake
- North Olmsted
- North Royalton
- Austintown
- Garfield Heights
- Shaker Heights
- Green
- Avon Lake
- Avon