There are 2796 Plumbing Services in Maryland, serving a population of 5,996,079 people in an area of 9,707 square miles. There is 1 Plumbing Service per 2,144 people, and 1 Plumbing Service per 3 square miles.
The state of Maryland is ranked 37th in Plumbing Services per capita, and 6th in Plumbing Services per square mile.