There are 436 Plumbing Services in Delaware, serving a population of 943,732 people in an area of 1,949 square miles. There is 1 Plumbing Service per 2,164 people, and 1 Plumbing Service per 4 square miles.
The state of Delaware is ranked 38th in Plumbing Services per capita, and 7th in Plumbing Services per square mile.