| Zip Code | Primary City | Secondary City | | 17050 | Mechanicsburg | Wertzville, Defense Depot, Goodhope, Hampden Station, Hogestown, Mech, Mechancsbrg, Mechbg, Navy Ships, Navy Sup Dpt, Trindle Sprg, Hampden Township, Hampden Twp, Silver Spg Tp, Silver Spring Township |
|