We have not verified a statewide law in Ohio requiring a septic inspection at the time a property transfers. That does not mean no requirement applies where you're buying: county and municipal time-of-transfer ordinances exist in various places around the country outside the states with a statewide law. Check the county page below, and ask the local health department directly — that is the authoritative source for a local ordinance, and this page is not.
No statewide Ohio law requiring septic inspection at time of transfer. Three states do have a real, verified one — Massachusetts, Iowa, and a waterfront-only law in New Hampshire — for comparison; Ohio is not one of them, at least not at the state level. A county or municipality in Ohio could still have its own ordinance we have not audited; the local health department for the specific county is the authoritative source.
Ohio Department of Health (ODH), Bureau of Environmental Health and Radiation Protection / Sewage Treatment Systems (Residential Sewage) Program. See the full Ohio septic regulation page for the permit sequence and licensing.
Wherever you're transacting in Ohio, the septic permit or as-built (where one exists) is almost always held by the county or district health office, not the state. How to find septic records before closing covers how to pull it; below is the county-by-county index of what we hold for Ohio.
| County | Records held |
|---|---|
| Hamilton | 161,344 |
| Lucas | 30,555 |
| Putnam | 18,476 |
| Muskingum | 12,187 |
| Clermont | 9,504 |
| Hocking | 3,256 |
| Delaware | 762 |
| Gallia | 98 |
| Highland | 86 |
| Clinton | 79 |
| Summit | 77 |
| Cuyahoga | 63 |
| Warren | 61 |
| Preble | 57 |
| Defiance | 56 |
| Auglaize | 53 |
| Morgan | 49 |
| Carroll | 45 |
| Darke | 42 |
| Erie | 39 |
| Licking | 37 |
| Seneca | 34 |
| Union | 31 |
| Wood | 29 |
| Guernsey | 29 |
| Wyandot | 27 |
| Pickaway | 25 |
| Clark | 24 |
| Holmes | 23 |
| Tuscarawas | 21 |
| Vinton | 21 |
| Richland | 19 |
| Shelby | 19 |
| Franklin | 19 |
| Meigs | 15 |
| Ashland | 15 |
| Logan | 14 |
| Van Wert | 14 |
| Columbiana | 13 |
| Fulton | 12 |
| Paulding | 11 |
| Champaign | 11 |
| Adams | 11 |
| Fairfield | 11 |
| Greene | 10 |
| Ottawa | 9 |
| Allen | 9 |
| Mercer | 8 |
| Coshocton | 8 |
| Williams | 7 |
| Jefferson | 6 |
| Lorain | 6 |
| Noble | 6 |
| Hardin | 6 |
| Lawrence | 5 |
| Washington | 4 |
| Huron | 4 |
| Fayette | 2 |
| Wayne | 1 |
| Butler | 1 |
Full Ohio county index · Ohio regulations · Ohio septic companies · Open the parcel map
We have not verified a statewide law requiring one in Ohio. A county or municipal ordinance could still apply; check with the local health department where the property is located.
Ohio Department of Health (ODH), Bureau of Environmental Health and Radiation Protection / Sewage Treatment Systems (Residential Sewage) Program
At the county or district health office that issued the permit, in almost every case. See the county-by-county index on this page for Ohio, and our general guide to finding records before closing.
Reviewed 2026-08-31 against the official sources linked above (where a source is cited) or, where none is cited, left deliberately general. Laws, lender overlays and local ordinances change; confirm current requirements with the county or state agency, your lender, and a licensed inspector before you rely on this for a closing.