First three digits · New Jersey
ZIP Codes Starting with
37 ZIP codes start with 085, sorted at the Trenton, NJ (SCF 085) sectional center (USPS labeling list L005, effective October 1, 2026) in New Jersey: 31 residential ZIP codes across 7 counties and 6 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 085 mean?
The first digit, 0, is one of ten national areas (Connecticut, Massachusetts, Maine, New Hampshire, New Jersey, Puerto Rico, Rhode Island, Vermont, U.S. Virgin Islands and Armed Forces Europe). The first three, 085, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 085 to the Trenton, NJ (SCF 085) facility. The last two digits pick the delivery area. By residents, the largest town names among the 085 ZIP codes are Jackson, Princeton, Hightstown, Princeton Junction, Plainsboro and Bordentown.
The same facility sorts 4 prefixes, 143 ZIP codes in all: 077, 085, 086, 087.
Where are the 085 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 085
| County | ||||||
|---|---|---|---|---|---|---|
| 08501 | Allentown | Monmouth County | 6,364 | 234 | $146k | $589k |
| 08502 | Belle Mead | Somerset County | 11,849 | 895 | $227k | $817k |
| 08504 | Blawenburg | Somerset County | PO Box or unique | – | – | – |
| 08505 | Bordentown | Burlington County | 19,142 | 851 | $113k | $363k |
| 08510 | Millstone Township | Monmouth County | 5,386 | 304 | $226k | $741k |
| 08511 | Cookstown | Burlington County | 976 | 409 | $81k | $360k |
| 08512 | Cranbury | Middlesex County | 12,928 | 567 | $119k | $659k |
| 08514 | Cream Ridge | Monmouth County | 4,917 | 180 | $134k | $581k |
| 08515 | Chesterfield | Burlington County | 8,373 | 396 | $209k | $560k |
| 08518 | Florence | Burlington County | 6,508 | 3,391 | $97k | $332k |
| 08520 | Hightstown | Mercer County | 29,504 | 1,636 | $118k | $377k |
| 08525 | Hopewell | Mercer County | 4,522 | 202 | $165k | $573k |
| 08526 | Imlaystown | Monmouth County | PO Box or unique | – | – | – |
| 08527 | Jackson | Ocean County | 58,991 | 691 | $116k | $486k |
| 08528 | Kingston | Somerset County | 321 | 340 | – | $234k |
| 08530 | Lambertville | Hunterdon County | 8,119 | 299 | $121k | $575k |
| 08533 | New Egypt | Ocean County | 7,563 | 138 | $114k | $493k |
| 08534 | Pennington | Mercer County | 13,272 | 609 | $176k | $573k |
| 08535 | Millstone Township | Monmouth County | 4,999 | 267 | $210k | $734k |
| 08536 | Plainsboro | Middlesex County | 20,817 | 2,764 | $138k | $704k |
| 08540 | Princeton | Mercer County | 50,388 | 974 | $177k | $768k |
| 08541 | Princeton | Mercer County | PO Box or unique | – | – | – |
| 08542 | Princeton | Mercer County | 2,533 | 6,562 | $106k | $754k |
| 08543 | Princeton | Mercer County | PO Box or unique | – | – | – |
| 08544 | Princeton | Mercer County | 4,392 | 26,458 | – | – |
| 08550 | Princeton Junction | Mercer County | 21,067 | 1,101 | $224k | $807k |
| 08551 | Ringoes | Hunterdon County | 5,873 | 224 | $163k | $596k |
| 08553 | Rocky Hill | Somerset County | 819 | 1,343 | $148k | $597k |
| 08554 | Roebling | Burlington County | 3,527 | 2,959 | $89k | $201k |
| 08555 | Roosevelt | Monmouth County | 996 | 513 | $110k | $365k |
| 08556 | Rosemont | Hunterdon County | PO Box or unique | – | – | – |
| 08557 | Sergeantsville | Hunterdon County | PO Box or unique | – | – | – |
| 08558 | Skillman | Somerset County | 7,648 | 491 | $236k | $910k |
| 08559 | Stockton | Hunterdon County | 4,836 | 121 | $180k | $561k |
| 08560 | Titusville | Mercer County | 3,245 | 244 | $129k | $420k |
| 08561 | Windsor | Mercer County | 325 | 286 | – | $484k |
| 08562 | Wrightstown | Burlington County | 4,201 | 251 | $104k | $302k |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.