Tulsa County, Oklahoma

Tulsa County is a county in the U.S. state of Oklahoma. As of 2000, 563,299 people lived there. The county seat is Tulsa. It has more people than any other county in Oklahoma.
Geography.
The county has a total area of 587 square miles.
NRHP Sites.
The following sites in Tulsa County are listed on the National Register of Historic Places: