Zip Code ReportMercer County ZIP codes
Every ZIP code in Mercer County, New Jersey, with the city it serves. Open any one for a free neighborhood report.
32 ZIP codes · Mercer County, NJ · FIPS 34021
ZIP codes
32 in this county08512Cranbury08520Hightstown08525Hopewell08534Pennington08540Princeton08542Princeton08543PrincetonPO box08544Princeton08550Princeton Junction08560Titusville08561Windsor08601TrentonPO box08602TrentonPO box08603TrentonPO box08604TrentonPO box08605TrentonPO box08606TrentonPO box08607TrentonPO box08608Trenton08609Trenton08610Trenton08611Trenton08618Trenton08619Trenton08620Trenton08628Trenton08629Trenton08638Trenton08648Lawrence Township08650TrentonPO box08690Trenton08691Robbinsville
9 of these ZIP codes route mail only. A PO-box or single-recipient ZIP has no residential area behind it, so neighborhood statistics can't be computed for it — those pages say so instead of showing numbers.