Mount Arlington New Jersey ZIP Codes
Mount Arlington holds a single ZIP code.
Every ZIP code in Mount Arlington
| ZIP code | County |
|---|---|
| 07856 | Morris 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Mount Arlington codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Mount Arlington. 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 Mount Arlington ZIP code begins 078. Those first three digits identify the sectional center facility that processes mail for this part of New Jersey. Statewide that range covers 56 ZIP codes, so Mount Arlington accounts for 2% of it.
Every New Jersey ZIP prefix and the region it covers →
Area codes covering Mount Arlington
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 Mount Arlington occupies.
Mount Arlington New Jersey area codes in full →
Where Mount Arlington's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Mount Arlington
| City | Distance | ZIP codes |
|---|---|---|
| Hopatcong New Jersey ZIP codes | 2.4 mi | 1 ZIP code |
| Stanhope New Jersey ZIP codes | 3.3 mi | 1 ZIP code |
| Netcong New Jersey ZIP codes | 3.5 mi | 1 ZIP code |
| Wharton New Jersey ZIP codes | 3.8 mi | 1 ZIP code |
| Dover New Jersey ZIP codes | 4.9 mi | 2 ZIP codes |
| Flanders New Jersey ZIP codes | 6.5 mi | 1 ZIP code |
| Rockaway New Jersey ZIP codes | 6.7 mi | 1 ZIP code |
| Andover New Jersey ZIP codes | 7.0 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.