Blocker, Oklahoma
Blocker is an unincorporated community located on Oklahoma [State Highway 31|State Highway 31] in Pittsburg [County, Oklahoma|Pittsburg County], Oklahoma, United States. The post office opened April 26, 1905. The ZIP code is 74529. The community is said to have been named for a local coal dealer, Eads Blocker. At the time of its founding, Blocker was located in Gaines County, [Choctaw Nation|Gaines County], Choctaw Nation, in the Indian Territory.