A brief outline of Alamosa County and San Luis Valley demographics is listed below.
Olive Branch, Ohio. Olive Branch is an unincorporated community in Clermont County, in the U.S. state of Ohio. History. Olive Branch was not officially platted. A post office called Olive Branch was established in 1845, and remained in operation until 1922.
Olive Branch is located in northeastern DeSoto County, at the junction of U.S. Route 78, and State Highways 302 (known locally as Goodman Road) and 305 (Germantown Road/Cockrum Street). Via US 78 it is 22 miles (35 km) northwest to the center of Memphis.