Decatur, Ohio
Unincorporated community in Ohio, U.S. / From Wikipedia, the free encyclopedia
Decatur is an unincorporated community in eastern Byrd Township, Brown County, Ohio, United States.[1] It has a post office with the ZIP code 45115.[2] It is located along State Route 125, an east-west highway.
![Location of Decatur, Ohio](http://upload.wikimedia.org/wikipedia/commons/6/66/OHMap-doton-Decatur.png)
Decatur was originally called St. Clairsville, and under the latter name was laid out around 1802.[3] A post office called Decatur has been in operation since 1817.[4]