County ProfileNJ
Somerset County
Population: 345,361 · 30 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
345,361
People
Median age
41.8
Housing
Total households
130,802
Income
Median household income
$140,374
Housing
Total housing units
133,639
Employment
Employment rate
66.6%
Education
Bachelor’s degree or higher
57.8%
Healthcare
Insured population
94.6%
County details
Local time 02:50:25(ET)| Name | Somerset |
|---|---|
| Total ZIP codes | 30total |
| ZIP codes (by type) | 23 Standard7 PO Box |
| Area code | 609, 640, 732, 848, 856, 908 |
| Timezone | Eastern Time (ET) |
| Coordinates | 40.5655273, -74.6199378 |
| Land area | 301.9 sq miles(781.8 km²) |
Map of Somerset county, New Jersey with ZIP codes
Cities and Communities in Somerset County
Compare the largest cities in Somerset County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Somerset | 22,968 | $121,028 | 2ZIPs |
| Hillsborough | 22,214 | $144,112 | 1ZIPs |
| Franklin Park | 13,430 | $114,946 | 1ZIPs |
| Somerville | 12,346 | $103,760 | 1ZIPs |
| Martinsville | 12,147 | $205,000 | 1ZIPs |
| Bound Brook | 11,988 | $90,571 | 1ZIPs |
| Manville | 10,953 | $93,333 | 1ZIPs |
| Bernardsville | 7,893 | $236,115 | 1ZIPs |
| Raritan | 7,835 | $107,672 | 1ZIPs |
| Basking Ridge | 7,196 | $188,295 | 1ZIPs |
| Watchung | 6,449 | $173,672 | 1ZIPs |
| Belle Mead | 5,569 | $223,250 | 1ZIPs |
| Lyons | 5,345 | $250,001 | 1ZIPs |
| Neshanic Station | 5,224 | $221,395 | 1ZIPs |
| South Bound Brook | 4,863 | $112,961 | 1ZIPs |
| Liberty Corner | 1,877 | $241,480 | 1ZIPs |
| Kingston | 1,581 | $110,813 | 1ZIPs |
| Bedminster | 1,244 | $128,594 | 1ZIPs |
| Flagtown | 1,070 | $229,612 | 1ZIPs |
| Far Hills | 924 | $143,250 | 1ZIPs |
| Rocky Hill | 743 | $148,056 | 1ZIPs |
| Pluckemin | 359 | $54,175 | 1ZIPs |
| Blawenburg | 287 | $250,001 | 1ZIPs |
| Skillman | 237 | — | 1ZIPs |
| Zarephath | 69 | — | 1ZIPs |
| Bridgewater | — | — | 1ZIPs |
| Gladstone | — | — | 1ZIPs |
| Peapack | — | — | 1ZIPs |
| Warren | — | — | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Somerset County
Review the most populated postal areas across Somerset County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 07059 | Warren | — | — |
| 07069 | Watchung | — | — |
| 07920 | Basking Ridge | — | — |
| 07921 | Bedminster | — | — |
| 07924 | Bernardsville | — | — |
| 07931 | Far Hills | — | — |
| 07934 | Gladstone | — | — |
| 07938 | Liberty Corner | — | — |
| 07939 | Lyons | — | — |
| 07977 | Peapack | — | — |
| 07978 | Pluckemin | — | — |
| 08502 | Belle Mead | — | — |
| 08504 | Blawenburg | — | — |
| 08528 | Kingston | — | — |
| 08553 | Rocky Hill | — | — |
| 08558 | Skillman | — | — |
| 08805 | Bound Brook | — | — |
| 08807 | Bridgewater | — | — |
| 08821 | Flagtown | — | — |
| 08823 | Franklin Park | — | — |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS