Irwin, Pennsylvania — Irwin is a borough in Westmoreland County, Pennsylvania, situated approximately 22 miles southeast of Pittsburgh. This community sits on extensive bituminous coal deposits and was named for John Irwin, the original owner of the town site. The area also served as the original western terminus of the Pennsylvania Turnpike when it opened in October 1940.This page organizes FFL dealer listings associated with Irwin, Pennsylvania within the directory’s location hierarchy. Visitors can keep browsing focused on the named place, move through its surrounding geography, and open individual listings for record-specific information. The page remains centered on the location itself while the catalogue can change independently. Use the hierarchy to return to broader place pages or continue toward a more specific community. Each step keeps the browsing path anchored to a named place and its surrounding geographic context.