Post Oak Creek is a stream in Johnson County in the U.S. state of Missouri.
It flows north passing under U.S. Route 50.
One mile north of Route 50 the stream veers to the northeast passing under Missouri Route 13 and enters the Blackwater River two miles north of Warrensburg at 38°48′26″N 93°44′30″W / 38.80722°N 93.74167°W / 38.80722; -93.74167.
This article related to a river in Missouri is a stub.
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