There are 53 Plumbing Supply Stores in Maryland, serving a population of 5,996,079 people in an area of 9,707 square miles. There is 1 Plumbing Supply Store per 113,133 people, and 1 Plumbing Supply Store per 183 square miles.
The state of Maryland is ranked 36th in Plumbing Supply Stores per capita, and 9th in Plumbing Supply Stores per square mile.