Mountain Lakes New Jersey ZIP Codes
Mountain Lakes holds a single ZIP code.
Every ZIP code in Mountain Lakes
| ZIP code | County |
|---|---|
| 07046 | 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Mountain Lakes codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Mountain Lakes. 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 Mountain Lakes 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 Mountain Lakes accounts for 1% of it.
Every New Jersey ZIP prefix and the region it covers →
Area codes covering Mountain Lakes
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 Mountain Lakes occupies.
Mountain Lakes New Jersey area codes in full →
Where Mountain Lakes's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Mountain Lakes
| City | Distance | ZIP codes |
|---|---|---|
| Boonton New Jersey ZIP codes | 2.1 mi | 1 ZIP code |
| Rockaway New Jersey ZIP codes | 3.9 mi | 1 ZIP code |
| Morris Plains New Jersey ZIP codes | 4.0 mi | 1 ZIP code |
| Towaco New Jersey ZIP codes | 5.8 mi | 1 ZIP code |
| Dover New Jersey ZIP codes | 6.1 mi | 2 ZIP codes |
| Morristown New Jersey ZIP codes | 6.8 mi | 3 ZIP codes |
| Wharton New Jersey ZIP codes | 6.9 mi | 1 ZIP code |
| Lincoln Park New Jersey ZIP codes | 7.5 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.