There are 209 Mailing Services in Middlesex County, Massachusetts, serving a population of 1,582,857 people in an area of 818 square miles. There is 1 Mailing Service per 7,573 people, and 1 Mailing Service per 3 square miles.
In Massachusetts, Middlesex County is ranked 10th of 14 counties in Mailing Services per capita, and 2nd of 14 counties in Mailing Services per square mile.