This is a list of the Indiana state historical markers in Posey County.
This is intended to be a complete list of the official state historical markers placed in Posey County, Indiana, United States by the Indiana Historical Bureau. The locations of the historical markers and their latitude and longitude coordinates are included below when available, along with their names, years of placement, and topics as recorded by the Historical Bureau. There are 5 historical markers located in Posey County.[1]
| Marker title | Image | Year placed | Location | Topics | |
|---|---|---|---|---|---|
| New Harmony[2] | 1966 | Near 513 E. Church Street across from the post office in New Harmony 38.1297°N -87.9342°W | Historic District, Neighborhoods, and Towns | ||
| Alvin P. Hovey 1821-1891[3] | 1966 | Eastern side of State Road 69 at 5500 Industrial Road by the entrance to Bellefontaine Cemetery north of Mount Vernon 37.9592°N -87.8967°W | Military, Politics | ||
| New Harmony Workingmen's Institute[4] | 2001 | Workingmen's Institute at 407 W. Tavern Street in front of the library in New Harmony 38.1289°N -87.9364°W | Business, Industry, and Labor, Historic District, Neighborhoods, and Towns | ||
| Tri-State Tornado[5] | 2004 | Southeastern corner of the junction of Main and First Streets in Griffin 38.2047°N -87.9144°W | Nature and Natural Disasters, Historic District, Neighborhoods, and Towns | ||
| Griffin Oil Discovery[6] | 2006 | Main and First Street, Griffin 38.2047°N -87.9144°W | Business, Industry, and Labor, Historic District, Neighborhoods, and Towns |