There are 109 Alteration Services in Pennsylvania, serving a population of 12,790,505 people in an area of 44,732 square miles. There is 1 Alteration Service per 117,344 people, and 1 Alteration Service per 410 square miles.
The state of Pennsylvania is ranked 38th in Alteration Services per capita, and 16th in Alteration Services per square mile.