There are 421 Plumbing Services in Marion County, Indiana, serving a population of 939,964 people in an area of 397 square miles. There is 1 Plumbing Service per 2,232 people, and 1 Plumbing Service per square mile.
In Indiana, Marion County is ranked 22nd of 92 counties in Plumbing Services per capita, and 1st of 92 counties in Plumbing Services per square mile.