The White Oak Bayou watershed stretches from central to northwest Harris County and includes the City of Jersey Village and portions of the City of Houston. Rainfall within the 111 square miles of the watershed drains to the primary waterway, White Oak Bayou (HCFCD Unit E100-00-00). The bayou flows southeast from its headwaters northwest of FM 1960 to its confluence with Buffalo Bayou (HCFCD Unit W100-00-00) downtown Houston.
There are 146 miles of open waterways in the watershed, including White Oak Bayou and its major tributaries, including Little White Oak Bayou (HCFCD Unit E101-00-00), Brickhouse Gully (HCFCD Unit E115-00-00), Cole Creek (HCFCD Unit E117-00-00) and Vogel Creek (HCFCD Unit E121-00-00). Based on 2010 U.S. Census data, the estimated population of the White Oak Bayou watershed is 433,250. Development in the White Oak Bayou watershed has progressed rapidly and is expected to continue.