There are 253 Plumbing Services in Marion County, Oregon, serving a population of 330,453 people in an area of 1,181 square miles. There is 1 Plumbing Service per 1,306 people, and 1 Plumbing Service per 4 square miles.
In Oregon, Marion County is ranked 12th of 36 counties in Plumbing Services per capita, and 3rd of 36 counties in Plumbing Services per square mile.