United States Postal Service 4098 Gibsonia Rd, Gibsonia, PA15044 This United States Postal Service is located in Gibsonia at the intersection of routes 8 and 910. Mail is delivered from…More this location to Gibsonia residents. It also serves customers sending mail out of Gibsonia, including packages and letters. The location offers stamps, packaging services, international mail carrying, mail carrying by flight and more. USPS also offers shipping deals with pre-paid boxes and special prices for holiday package mailing during the holiday season. Daily collections end at 5pm on weekdays and 4pm on Saturdays.