There are 130 Car Washes in Allegheny County, Pennsylvania, serving a population of 1,229,605 people in an area of 730 square miles. There is 1 Car Wash per 9,458 people, and 1 Car Wash per 5 square miles.
In Pennsylvania, Allegheny County is ranked 27th of 67 counties in Car Washes per capita, and 3rd of 67 counties in Car Washes per square mile.