US location post office
ZIP Code 7856
- Zip Code: 7856
- Official USPS city name: Mount Arlington
- Official USPS State Code: NJ
- Official State Name: New Jersey
- ZCTA: TRUE
- Population: 4126.0
- Density: 455.9
- Primary Official County Code: 34027
- Primary Official County Name: Morris
- Official County Name: Morris
- Official County Code: 34027
- Imprecise: FALSE
- Military: FALSE
- Timezone: America/New_York (09:25 AM Monday, May 19 2025-05-19 (GMT -0400))
- Geo Point: 40.91868, -74.63344
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