Below is a list of Limestone PA zip codes. For your research we have also included Limestone Area Code, Time Zone, UTC and the local Clarion County FIPS Code. Each Limestone Pennsylvania zip code has a center Longitude / Latitude point (the Limestone center is -79.327201843262 / 41.128601074219). For your convenience we have also indicated if that zip code in Limestone observes Daylight Savings time.