There are 772 Plumbing Services in San Mateo County, California, serving a population of 763,450 people in an area of 449 square miles. There is 1 Plumbing Service per 988 people, and 1 Plumbing Service per square mile.
In California, San Mateo County is ranked 13th of 58 counties in Plumbing Services per capita, and 4th of 58 counties in Plumbing Services per square mile.