Twenty-five thousand people live in Derry Township, but on a summer Saturday the roads carry a lot more than that. Car insurance here covers Hershey — the company town built around the chocolate factory, now home to a theme park, a hockey arena, and a trauma center that each pull traffic from well beyond the township line.
A Township Built Around a Chocolate Factory
Hershey isn't an incorporated city — it's an unincorporated community inside Derry Township, built up around Milton Hershey's chocolate company a century ago. The township has grown from about 24,710 residents at the 2020 census to an estimated 25,181 today, spread across 27.2 square miles of Dauphin County roughly 15 miles east of Harrisburg.
That history still shapes the map. Milton Hershey School, the Hershey Company's headquarters, and Hershey's Chocolate World all sit within a few miles of each other, feeding local traffic even on days when nothing else is happening in town.
Three Million Visitors a Year on One Road
Hersheypark draws roughly 3 million visitors annually, making it the most-visited theme park in Pennsylvania. Most of that traffic reaches the park by way of PA Route 39 — Hersheypark Drive, which becomes Governor Road and meets U.S. Route 322/422 at the township's edge.
A road feeding a theme park sees a different mix than a commuter highway: out-of-town drivers who don't know the turn lanes, stop-and-go entry traffic during peak season, and a spike in concert and event traffic at the Giant Center, home to the Hershey Bears AHL hockey team. Insurers track that claims pattern by ZIP code, and corridors closest to Hersheypark Drive carry a different risk profile than blocks farther from the park gates.
The Region's Only Level I Trauma Center
Penn State Health Milton S. Hershey Medical Center sits in Derry Township and holds Level I trauma designation for both adults and children — the only facility of its kind in south-central Pennsylvania. It pulls patients, visitors, and ambulance traffic from a multi-county radius well beyond the township's own population.
That combination — theme park, arena, and trauma center all drawing outside traffic into the same stretch of roads — is an unusual mix for a township this size, and it's part of what insurers weigh when pricing ZIP codes near the medical center and Hersheypark Drive corridor.
Not the Only Derry in Pennsylvania
Pennsylvania has more than one place called Derry. There's a Derry Township in Westmoreland County near Latrobe, another Derry Township in Mifflin County, and a separate Derry Borough in Westmoreland County. This page covers Derry Township in Dauphin County — the one with Hershey in it.
That distinction matters when comparing quotes online — a rate pulled for the wrong Derry won't reflect this township's ZIP codes, roads, or claims history.
What Derry Township Drivers Can Do
- Quote by exact ZIP, not township: streets near Hersheypark Drive and Route 39 can price differently than residential blocks farther from the park.
- Confirm you're comparing the right Derry: Pennsylvania has townships and a borough sharing this name in other counties.
- Keep UM/UIM coverage active: Pennsylvania's uninsured rate runs around 6% statewide, and it's the coverage that pays out when an out-of-town visitor isn't carrying enough insurance.
- Get the tort election explained plainly: full tort versus limited tort changes your rights after a real crash, not just your monthly bill.
Weighing state-minimum coverage against a fuller policy? Our minimum vs. full coverage guide breaks down the trade-offs. For more ways to trim a premium, see our lower your car insurance premium guide.
Derry Township prices like what it is: a 25,000-person community that happens to host a 3-million-visitor theme park, a hockey arena, and the region's only Level I trauma center. Shop by your specific ZIP code, confirm you've got the right Derry, and don't skip the tort conversation.