 According to the United States Census Bureau, the CDP has a total area of 8.7 square miles (22.6 km²), of which, 8.3 square miles (21.6 km²) of it is land and 0.4 square miles (1.0 km²) of it (4.25%) is water.As of the census of 2000, there were 21,588 people, 7,659 households, and 5,820 families residing in the CDP.The population density was 2,592.0 people per square mile (1,000.6/km²).