County · New Jersey · United States
Monmouth County ZIP codes
50 ZIP codes · 49 cities · FIPS 34025
Key facts
- State
- New Jersey (NJ)
- FIPS code
- 34025
- Population
- 643,615
- Median household income
- $122,727
- Median age
- 43.2
- Land area
- 468.2 sq mi (1,212.6 km²)
- Population density
- 1,375 / sq mi
- Area codes
- 609, 640, 732, 848, 908
Cities and ZIP codes in Monmouth County (49)
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.