There are 1882 Mailing Services in Illinois, serving a population of 12,854,526 people in an area of 55,505 square miles. There is 1 Mailing Service per 6,830 people, and 1 Mailing Service per 29 square miles.
The state of Illinois is ranked 32nd in Mailing Services per capita, and 14th in Mailing Services per square mile.