Blocker, Oklahoma35°03′41″N 95°34′06″W / 35.061486°N 95.568317°W Blocker is an unincorporated community located on State Highway 31 in Pittsburg County, Oklahoma, United States.[1] 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.[2] At the time of its founding, Blocker was located in Gaines County, Choctaw Nation, in the Indian Territory.[3] References
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