Mountainside, NJ ZIP code
The ZIP code for Mountainside, New Jersey is 07092. It is in Union County.
- Population in these ZIPs
- 7,049
- Avg. median income
- $211,500population-weighted
- Typical home value
- $1,048,100population-weighted
- Metro area
- New York-Newark-Jersey City, NY-NJ
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Mountainside, NJ ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 07092 | 7,049 | $211,538 | $1,048,100 |
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 Mountainside
- Springfield 2 mi
- Summit 2 mi
- Westfield 3 mi
- New Providence 3 mi
- Garwood 3 mi
- Fanwood 3 mi
- Scotch Plains 3 mi
- Cranford 3 mi
- Berkeley Heights 4 mi
- Kenilworth 4 mi
- Plainfield 4 mi
- Chatham 4 mi
Frequently asked questions
What is the ZIP code for Mountainside, NJ?
The ZIP code for Mountainside, NJ is 07092.
What county is Mountainside, New Jersey in?
Mountainside ZIP codes are in Union County.