Mount Arlington, NJ ZIP code
The ZIP code for Mount Arlington (also written Mt. Arlington), New Jersey is 07856. It is in Morris County.
- Population in these ZIPs
- 4,774
- Avg. median income
- $92,500population-weighted
- Typical home value
- $499,200population-weighted
- Metro area
- New York-Newark-Jersey City, NY-NJ
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Mount Arlington, NJ ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 07856 | 4,774 | $92,466 | $499,200 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Mount Arlington
Frequently asked questions
What is the ZIP code for Mount Arlington, NJ?
The ZIP code for Mount Arlington, NJ is 07856.
What county is Mount Arlington, New Jersey in?
Mount Arlington ZIP codes are in Morris County.