There are 156 Plumbing Services in Washtenaw County, Michigan, serving a population of 361,509 people in an area of 706 square miles. There is 1 Plumbing Service per 2,317 people, and 1 Plumbing Service per 4 square miles.
In Michigan, Washtenaw County is ranked 13th of 83 counties in Plumbing Services per capita, and 5th of 83 counties in Plumbing Services per square mile.