Formed on March 1, 1810 from portions of Highland County and Ross County. It was named after Marie-Joseph Motier, Marquis de LaFayette, a French general and politican who took the side of the Colonials during the America Revolutionary War and who played an important role in the French Revolution.

Fayette County is a rural county in southwest Ohio with a population of 29,030 (2010 Census) in 10 townships. Number of farms in the county; 504-585, land in farms; 196,529-218,250 acres.The City of Washington Court House is the County seat. The County Board of Commissioners is the governing policy board.

Points of interest :
Fayette County Courthouse, a source of great community pride, opened on May 1, 1885. It was the first building in Fayette County to be listed on the National Register of Historic Places. A giant eight day Seth Thomas clock, the second largest in the USA at the time of installation, graces the top of the building. Murals painted by Archibald M. Willard, painter of "The Spirit of 76" adorn the walls of the second floor corridor. Also of interest are seven bullet hole in the courthouse door, which resulted from Fayette County's historic Riot of 1894.

Tri-County Triangle Trail, Inc., is a non-profit organization of volunteer supporters from Ross, Fayette and Highland Counties of Ohio Supporting efforts to convert abandoned railroad corridors into recreational trails thus enhancing the environment, recreational opportunities, health, economy, neighborhoods and people of our region. This rail route is now completed from Fayette County to Ross County Ohio.

Eyman Park is the home of Engine #2776, the steam locomotive donated to Fayette County by the Chesapeake & Ohio Railroad in 1960. The park also features a shelter house, playground equipment, basketball courts, two softball diamonds, a horseshoes area, and a skateboard park. A shelter house and a small stocked lake for publick fishing are also available.

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