Brushy Creek is a census-designated place (CDP) in Williamson County, Texas, United States.

According to the United States Census Bureau in 2000, the CDP has a total area of 8.7 square miles (22.6 km2), all land.

[5][6] As of the 2020 United States census, there were 22,519 people, 5,713 households, and 4,432 families residing in the CDP.

[28] Middle schools serving RRISD sections include Cedar Valley, Chisholm Trail, Pearson Ranch, and James Garland Walsh.

[34] The following diagram represents localities within a 12 kilometres (7.5 mi) radius of Brushy Creek.