Decatur, Ohio
Decatur is an unincorporated community in eastern Byrd Township, Brown County, Ohio, United States. Although it is unincorporated, it has a post office, with the ZIP code of 45115. It is located along State Route 125, an east-west highway.
Decatur was originally called St. Clairsville, and under the latter name was laid out around 1802. A post office called Decatur has been in operation since 1817.
Decatur community sign.
Looking west on Ohio Highway 125 in Decatur.
Coordinates: 38°48′56″N 83°42′14″W / 38.81556°N 83.70389°W
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