Caldwell New Jersey ZIP Codes
Caldwell holds 2 ZIP codes, all inside one county and one postal prefix.
Every ZIP code in Caldwell
| ZIP code | County |
|---|---|
| 07006 | Essex County |
| 07007 | Essex County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Caldwell codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Caldwell. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Caldwell ZIP code begins 070. Those first three digits identify the sectional center facility that processes mail for this part of New Jersey. Statewide that range covers 88 ZIP codes, so Caldwell accounts for 2% of it.
Every New Jersey ZIP prefix and the region it covers →
Area codes covering Caldwell
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Caldwell occupies.
Caldwell New Jersey area codes in full →
Where Caldwell's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Caldwell
| City | Distance | ZIP codes |
|---|---|---|
| Essex Fells New Jersey ZIP codes | 0.8 mi | 1 ZIP code |
| Roseland New Jersey ZIP codes | 2.1 mi | 1 ZIP code |
| Fairfield New Jersey ZIP codes | 3.1 mi | 1 ZIP code |
| Livingston New Jersey ZIP codes | 4.1 mi | 1 ZIP code |
| Glen Ridge New Jersey ZIP codes | 4.5 mi | 1 ZIP code |
| Orange New Jersey ZIP codes | 4.5 mi | 2 ZIP codes |
| Totowa New Jersey ZIP codes | 5.3 mi | 2 ZIP codes |
| Lincoln Park New Jersey ZIP codes | 6.0 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.