| ZIP Codes: | 17 ZIP Codes (11 Standard, 6 PO Box, 0 Unique) [See All] |
| Area Code: | 908 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:11 PM |
| Population: | 116,142 [See All] |
| FIPS: | 34041 |
| CBSA: | Allentown-Bethlehem-Easton, PA-NJ |
| Land Area: | 374 sq mi |
| Water Area: | 6 sq mi |
| Coordinates: | 40.8391, -74.9760 |
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116,142 residents live across 17 ZIPs covering 374 sq mi, served by 17 distinct USPS-recognized cities.
Population moved from 111,483 to 115,995 from 2014 to 2024 — a +4.0% change. 5 ZIPs gained residents, 9 lost.
The county's wealthiest ZIP 08886 (Stewartsville, $161,168 median) and poorest ZIP 08865 (Phillipsburg, $79,949) are 3.5 miles apart — a 2.0× income gap across local geography.
Median home values vary 1.7× across this county — from $267,200 in 08865 (Phillipsburg) to $447,100 in 08886 (Stewartsville).
Density varies 14× across the county — from 54 people/sq mi in 07832 (Columbia) to 736 in 07840 (Hackettstown).
Educational attainment ranges from 23.1% bachelor's+ in 07823 (Belvidere) to 49.8% in 08886 (Stewartsville) — the breadth of educational profiles across the area.
Within New Jersey, this is the #19 most populous of 21 counties and ranks #14 for median household income .
Weighted by population, the typical household earns about $102,410 across the county — reflecting what a typical resident sees, not a simple ZIP average.
38.2% of adults age 25+ hold a bachelor's degree or higher (32,125 of 84,126 reporting).
11 Standard delivery, 6 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 07840 | Hackettstown | Standard | 32,105 | $105,866 | 43.6 | 10.2% |
| 08865 | Phillipsburg | Standard | 31,427 | $79,949 | 43.4 | 6.1% |
| 07882 | Washington | Standard | 15,115 | $107,567 | 32.2 | 4.3% |
| 07825 | Blairstown | Standard | 9,210 | $123,785 | 87.2 | -2.4% |
| 07823 | Belvidere | Standard | 7,451 | $85,522 | 25.5 | -1.9% |
| 08886 | Stewartsville | Standard | 6,435 | $161,168 | 14.1 | -5.7% |
| 07863 | Oxford | Standard | 3,819 | $94,167 | 20.5 | -11.4% |
| 07838 | Great Meadows | Standard | 3,727 | $121,599 | 24.2 | -4.1% |
| 07832 | Columbia | Standard | 3,593 | $106,424 | 66.2 | -7.3% |
| 07865 | Port Murray | Standard | 2,825 | $108,056 | 17.4 | 41.0% |
| 07880 | Vienna | PO Box | 173 | — | 0.0 | 78.4% |
| 07844 | Hope | PO Box | 111 | $80,221 | 0.0 | — |
| 07833 | Delaware | PO Box | 70 | — | 0.0 | -30.0% |
| 07846 | Johnsonburg | PO Box | 45 | $99,792 | 0.0 | -45.8% |
| 07831 | Changewater | Standard | 36 | — | 0.0 | — |
| 07820 | Allamuchy | PO Box | 0 | — | 0.0 | -100.0% |
| 08808 | Broadway | PO Box | — | — | 0.0 | — |