There are 138 Mailing Services in Collin County, Texas, serving a population of 914,075 people in an area of 842 square miles. There is 1 Mailing Service per 6,623 people, and 1 Mailing Service per 6 square miles.
In Texas, Collin County is ranked 183rd of 254 counties in Mailing Services per capita, and 4th of 254 counties in Mailing Services per square mile.