ZIP code · Changewater · New Jersey · United States
ZIP code 07831 — Changewater
ZIP code 07831 serves Changewater, New Jersey.
- Postal code
- 07831Single source Value from one source, not cross-checked.
- City
- Changewater
- County
- Warren FIPS 34041
- State
- New Jersey
- Country
- United States
- Coordinates
- 40.7394, -74.9448 — precision precise (locality)
View on OpenStreetMap - Population
- 39 (ZCTA, ACS 5-year)
- Population density
- 316 / sq mi
- Land area
- 0.1 sq mi (0.3 km²) (ZCTA, ACS 5-year)
- Per-capita income
- $0
- Households
- 20
- Housing units
- 20
- Congressional district
- NJ-7 (119th Congress)
- USDA hardiness zone
- 6b (-5 to 0 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
- Area code
- 908 (from the nearest rate centre)Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 07831 with another ZIP · ZIPs within 25 miles · distance from 07831
Map of ZIP code 07831
Climate — monthly normals
Warmest month Jul (avg high 84°F), coldest Jan (avg low 18°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 37 | 40 | 48 | 61 | 71 | 79 | 84 | 83 | 76 | 64 | 52 | 41 |
| Avg low °F | 18 | 19 | 26 | 36 | 46 | 56 | 61 | 59 | 52 | 40 | 30 | 24 |
| Precip in | 3.2 | 2.7 | 3.6 | 4.0 | 4.1 | 4.5 | 4.8 | 4.5 | 4.6 | 4.8 | 3.3 | 4.1 |
NOAA 1991–2020 climate normals from the nearest station: BELVIDERE BRG (9.6 mi) · NOAA NCEI
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page