County ZIP codes · New Jersey · FIPS 34019
Hunterdon County, NJ ZIP Codes
Hunterdon County, New Jersey has 34 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 26 residential and 8 for PO boxes or a single organization. 20 of the residential ones lie mainly in Hunterdon County and 6 mainly in a neighboring county; 12 cross the county line. Median household income ranges from $101,774 in 08825 (Frenchtown) to $220,725 in 08853 (Neshanic Station) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Hunterdon County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $122,884 and $165,324.
They carry 26 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 26 residential ZIP codes in Hunterdon County
20 ZIP codes lie mainly in Hunterdon County; 6 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 08822 | Flemington | 32,556 | 503 | $138k | $537k | 100% |
| 08889 | Whitehouse Station | 10,193 | 442 | $158k | $542k | 100% |
| 08833 | Lebanon | 9,184 | 263 | $173k | $604k | 100% |
| 08848 | Milford | 8,134 | 249 | $139k | $440k | 100% |
| 08530 | Lambertville | 8,119 | 299 | $121k | $575k | 81% |
| 07830 | Califon | 7,379 | 284 | $181k | $656k | 82% |
| 08801 | Annandale | 7,267 | 484 | $150k | $522k | 100% |
| 08809 | Clinton | 6,703 | 968 | $131k | $421k | 100% |
| 08551 | Ringoes | 5,873 | 224 | $163k | $596k | 100% |
| 08826 | Glen Gardner | 5,459 | 256 | $124k | $452k | 100% |
| 08867 | Pittstown | 5,204 | 184 | $205k | $602k | 100% |
| 08559 | Stockton | 4,836 | 121 | $180k | $561k | 100% |
| 08825 | Frenchtown | 4,735 | 163 | $102k | $452k | 100% |
| 08802 | Asbury | 4,552 | 186 | $136k | $462k | 58% |
| 08827 | Hampton | 4,346 | 240 | $136k | $443k | 90% |
| 08829 | High Bridge | 3,580 | 1,485 | $113k | $337k | 100% |
| 08804 | Bloomsbury | 3,465 | 246 | $107k | $462k | 60% |
| 08887 | Three Bridges | 1,380 | 1,702 | $109k | $283k | 100% |
| 07979 | Pottersville | 214 | 242 | – | – | 81% |
| 08858 | Oldwick | 20 | 8 | – | – | 100% |
Partly in Hunterdon County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 08525 | Hopewell | 4,522 | 202 | $165k | $573k | 30% |
| 08853 | Neshanic Station | 5,634 | 495 | $221k | $773k | 24% |
| 07865 | Port Murray | 2,825 | 171 | $108k | $394k | 21% |
| 08876 | Somerville | 23,380 | 1,461 | $123k | $485k | 14% |
| 07882 | Washington | 15,115 | 479 | $108k | $355k | 5% |
| 08560 | Titusville | 3,245 | 244 | $129k | $420k | 1% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
12 ZIP codes of Hunterdon County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Hunterdon | Elsewhere |
|---|---|---|
| 08876 | 14% | Somerset County86% |
| 07882 | 5% | Warren County95% |
| 08530 | 81% | Mercer County19% |
| 07830 | 82% | Morris County18% |
| 08853 | 24% | Somerset County76% |
| 08802 | 58% | Warren County42% |
| 08525 | 30% | Mercer County70% |
| 08827 | 90% | Warren County10% |
| 08804 | 60% | Warren County40% |
| 08560 | 1% | Mercer County99% |
| 07865 | 21% | Warren County65%; Morris County14% |
| 07979 | 81% | Somerset County19% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 08556 | Rosemont |
| 08557 | Sergeantsville |
| 08803 | Baptistown |
| 08834 | Little York |
| 08868 | Quakertown |
| 08870 | Readington |
| 08885 | Stanton |
| 08888 | Whitehouse |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Hunterdon County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Hunterdon County's ZIP codes use 4 prefixes: 078, 079, 085 and 088.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 078 | Nnj Metro, NJ (SCF 076) | 3 | 56 |
| 079 | Dv Daniels, NJ (SCF 070) | 1 | 35 |
| 085 | Trenton, NJ (SCF 085) | 7 | 37 |
| 088 | Dv Daniels, NJ (SCF 070) | 23 | 67 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.