This article lists the oldest extant buildings in Ohio, including extant buildings and structures constructed prior to and during the United States rule over Ohio. Only buildings built prior to 1830 are suitable for inclusion on this list, or the building must be the oldest of its type.
In order to qualify for the list, a structure must:
This consciously excludes ruins of limited height, roads and statues. Bridges may be included if they otherwise fulfill the above criteria. Dates for many of the oldest structures have been arrived at by radiocarbon dating or dendrochronology and should be considered approximate. If the exact year of initial construction is estimated, it will be shown as a range of dates.
| Building | Image | Location | First built | Use | Notes |
|---|---|---|---|---|---|
| Old Stone Fort (Cushocton, Ohio) | Coshocton, Ohio | ca. 1679-1700s | Unknown | Believed to have been built by "d’ Iberville, LaSalle’s successor who built French forts in the Mississippi Valley from 1679- 1689. It’s also believed that this French Canadian built the fort to guard against the English in the battle of the fur trades."[1] Another theory is "it was actually built in the 1700s by Irishman George Croghan as a fur trading post."[2] | |
| Rufus Putnam House | Marietta, Ohio | 1788 | Residential | Now part of the Campus Martius museum | |
| Ohio Company Land Office building | Marietta, Ohio | 1788 | Business | Now part of the Campus Martius museum[3] | |
| Newcom Tavern | Dayton, Ohio | 1796 | Tavern | Oldest building in Dayton[4] | |
| Unionville Tavern | Unionville, Ohio | 1798 | Tavern | Abandoned tavern, one of oldest buildings in state[5] | |
| Galloway | 120px | Xenia, Ohio | 1798 | Residence | |
| Captain Jonathan Stone House | Belpre, Ohio | 1799 | Residence | largely rebuilt after 1974 tornado[6] | |
| Federal Land Office (Steubenville, Ohio) | Steubenville, Ohio | 1801 | Government | Established by Harrison Land Act of 1800 | |
| Ohio's Oldest Brick Building | Lisbon, Ohio | 1803 | Commercial | Often alleged to be Ohio's oldest brick building; built by Picking family, Edwin Stanton practiced law upstairs in building.[7] | |
| Betts House (Cincinnati, Ohio) | Cincinnati, Ohio | 1804 | Residential | Oldest building in Cincinnati | |
| Old Stone Tavern (Poland, Ohio) | Poland, Ohio | 1804 | Tavern | Oldest remaining building in Poland. William McKinley enlisted in the Union Army on its front porch in 1861.[8] | |
| Franklinton Post Office | Columbus, Ohio | 1807 | Post office | Oldest building in Columbus[9] | |
| West Union Presbyterian Church | West Union, Ohio | 1810 | Church | Oldest active church building in Ohio[10] | |
| Dunham Tavern | Cleveland, Ohio | 1824 | Tavern | Oldest building in Cleveland[11] | |
| Petersburg Mill | Petersburg, Carroll County, Ohio | 1826 | Water mill | Built in 1826 to replace an 1818 watermill.[12] | |