There are 116 Plumbing Services in Harford County, Maryland, serving a population of 250,132 people in an area of 437 square miles. There is 1 Plumbing Service per 2,156 people, and 1 Plumbing Service per 3 square miles.
In Maryland, Harford County is ranked 9th of 24 counties in Plumbing Services per capita, and 8th of 24 counties in Plumbing Services per square mile.