There are 185 Plumbing Services in Hampden County, Massachusetts, serving a population of 469,188 people in an area of 617 square miles. There is 1 Plumbing Service per 2,536 people, and 1 Plumbing Service per 3 square miles.
In Massachusetts, Hampden County is ranked 13th of 14 counties in Plumbing Services per capita, and 10th of 14 counties in Plumbing Services per square mile.