Pflugerville is a city in Travis County, Texas, United States, with a small portion in Williamson County. The population was 46,936 at the 2010 census, and 64,431 in the 2018 Census estimate. Pflugerville is a suburb of Austin and part of the Austin–Round Rock–San Marcos Metropolitan Statistical Area.
According to the 2010 United States Census Bureau, the city has a total land area of 22.32 square miles. It has 40.39 square miles in the extraterritorial jurisdiction. The city has one body of water, Lake Pflugerville, created in 2005 to serve as a water reservoir and recreation area, and two creeks, Gilleland Creek and Wilbarger Creek. A local school group, Wilbarger Water Watchers, in association with the LCRA, monitors the waters of Wilbarger Creek to ensure it meets the United States Environmental Protection Agency's national standard.