National Register listings in Union County, Ohio
Most notable listings
Elmwood Place Irwin · Building · listed 1979 
Fort, The North Lewisburg · Building · listed 1982 
Reed Covered Bridge Marysville · Structure · listed 1975 
Ellis Mounds Marysville · Site · listed 1974 
Henderson, Dr. David W., House Marysville · Building · listed 2001 Gilcrist House Marysville · Building · listed 1976 Marysville Historic District Marysville · District · listed 1978 Harmon Building-Ohio Reformatory for Women Marysville · Building · listed 2021 Marysville Light and Water Company Plant Marysville · Building · listed 2025 Oakdale Cemetery Historic District Marysville · District · listed 2024 Historic districts (2)
- Marysville Historic District — Marysville
- Oakdale Cemetery Historic District — Marysville
All listings
Places: Marysville (9) · Irwin (1) · North Lewisburg (1)
| Name | Place | Type | Listed |
|---|---|---|---|
| Ellis Mounds | Marysville | Site | 1974 |
| Elmwood Place | Irwin | Building | 1979 |
| Fort, The | North Lewisburg | Building | 1982 |
| Gilcrist House | Marysville | Building | 1976 |
| Harmon Building-Ohio Reformatory for Women | Marysville | Building | 2021 |
| Henderson, Dr. David W., House | Marysville | Building | 2001 |
| Marysville Historic District | Marysville | District | 1978 |
| Marysville Light and Water Company Plant | Marysville | Building | 2025 |
| Oakdale Cemetery Historic District | Marysville | District | 2024 |
| Partridge, Reuben L. House | Marysville | Building | 2021 |
| Reed Covered Bridge | Marysville | Structure | 1975 |
State Historic Preservation Office
Nominations, tax-credit certifications and official records for Ohio go through the Ohio State Historic Preservation Office. See how to nominate a property.