There are 966 Mailing Services in Washington, serving a population of 7,169,967 people in an area of 66,439 square miles. There is 1 Mailing Service per 7,422 people, and 1 Mailing Service per 68 square miles.
The state of Washington is ranked 37th in Mailing Services per capita, and 32nd in Mailing Services per square mile.