Harris County WCID 89 is located in an unincorporated area of Harris County, approximately 11 miles south of downtown Houston and 2 miles east of State Highway 288, ending at Cullen Boulevard. South Sam Houston Tollway (Beltway 8) intersects the District. The neighborhoods on the north are Brunswick Meadows, Brunswick Place, and Brunswick Lakes. The neighborhoods on the south are Morningside Place and Morningside Place II. The Harris County Tom Bass Regional Parks are on the southern border of the District on Fellows Road.

There are also several commercial properties and retail outlets within the District boundaries.