Clay County

Ceir sawl lle o'r enw Clay County gan gynnwys:	

 Clay County, Alabama
 Clay County, Arkansas
 Clay County, Florida
 Clay County, Georgia
 Clay County, Illinois
 Clay County, Indiana
 Clay County, Iowa
 Clay County, Kentucky
 Clay County, Minnesota
 Clay County, Mississippi
 Clay County, Missouri
 Clay County, Nebraska
 Clay County, Gogledd Carolina
 Clay County, De Dakota
 Clay County, Tennessee
 Clay County, Texas
 Clay County, Gorllewin Virginia