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County ZIP codes · New Jersey · FIPS 34035

Somerset County, NJ ZIP Codes

Somerset County, New Jersey has 36 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 32 residential and 4 for PO boxes or a single organization. 27 of the residential ones lie mainly in Somerset County and 5 mainly in a neighboring county; 13 cross the county line. Median household income ranges from $78,602 in 07060 (Plainfield) to $245,429 in 07934 (Gladstone) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Somerset County?

07059 · Warren: $213k07060 · Plainfield: $79k07062 · Plainfield: $98k07063 · Plainfield: $93k07069 · Watchung: $172k07920 · Basking Ridge: $193k07921 · Bedminster: $123k07924 · Bernardsville: $236k07931 · Far Hills: $201k07934 · Gladstone: $245k07939 · Lyons: –07977 · Peapack: $151k07979 · Pottersville: –08502 · Belle Mead: $227k08528 · Kingston: –08540 · Princeton: $177k08553 · Rocky Hill: $148k08558 · Skillman: $236k08805 · Bound Brook: $93k08807 · Bridgewater: $169k08812 · Dunellen: $118k08821 · Flagtown: $156k08823 · Franklin Park: $116k08835 · Manville: $93k08836 · Martinsville: $230k08844 · Hillsborough: $154k08853 · Neshanic Station: $221k08869 · Raritan: $108k08873 · Somerset: $125k08876 · Somerville: $123k08880 · South Bound Brook: $113k08890 · Zarephath: –085400884407920088730793108807088760705907921085580850207924088530706908836070600881208823088050883507059 · Warren: $213k07060 · Plainfield: $79k07062 · Plainfield: $98k07063 · Plainfield: $93k07069 · Watchung: $172k07920 · Basking Ridge: $193k07921 · Bedminster: $123k07924 · Bernardsville: $236k07931 · Far Hills: $201k07934 · Gladstone: $245k07939 · Lyons: –07977 · Peapack: $151k07979 · Pottersville: –08502 · Belle Mead: $227k08528 · Kingston: –08540 · Princeton: $177k08553 · Rocky Hill: $148k08558 · Skillman: $236k08805 · Bound Brook: $93k08807 · Bridgewater: $169k08812 · Dunellen: $118k08821 · Flagtown: $156k08823 · Franklin Park: $116k08835 · Manville: $93k08836 · Martinsville: $230k08844 · Hillsborough: $154k08853 · Neshanic Station: $221k08869 · Raritan: $108k08873 · Somerset: $125k08876 · Somerville: $123k08880 · South Bound Brook: $113k08890 · Zarephath: –085400884407920088730793108807070590792108558085020792408853070690883607060088120882307059 · Warren: $213k07060 · Plainfield: $79k07062 · Plainfield: $98k07063 · Plainfield: $93k07069 · Watchung: $172k07920 · Basking Ridge: $193k07921 · Bedminster: $123k07924 · Bernardsville: $236k07931 · Far Hills: $201k07934 · Gladstone: $245k07939 · Lyons: –07977 · Peapack: $151k07979 · Pottersville: –08502 · Belle Mead: $227k08528 · Kingston: –08540 · Princeton: $177k08553 · Rocky Hill: $148k08558 · Skillman: $236k08805 · Bound Brook: $93k08807 · Bridgewater: $169k08812 · Dunellen: $118k08821 · Flagtown: $156k08823 · Franklin Park: $116k08835 · Manville: $93k08836 · Martinsville: $230k08844 · Hillsborough: $154k08853 · Neshanic Station: $221k08869 · Raritan: $108k08873 · Somerset: $125k08876 · Somerville: $123k08880 · South Bound Brook: $113k08890 · Zarephath: –085400884407920088730793108807070590792108558085020885307060
The residential ZIP codes of Somerset County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $112,961 and $212,479.

They carry 30 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 32 residential ZIP codes in Somerset County

27 ZIP codes lie mainly in Somerset County; 5 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Somerset County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
08873 Somerset 56,327 1,753 $125k $466k 100%
08844 Hillsborough 44,463 806 $154k $548k 100%
08807 Bridgewater 39,560 1,553 $169k $591k 100%
07920 Basking Ridge 28,753 1,058 $193k $800k 82%
08876 Somerville 23,380 1,461 $123k $485k 86%
07059 Warren 16,811 853 $213k $922k 100%
08812 Dunellen 14,224 2,801 $118k $443k 78%
08805 Bound Brook 14,066 4,784 $93k $418k 100%
08502 Belle Mead 11,849 895 $227k $817k 100%
08835 Manville 10,921 4,847 $93k $354k 100%
08823 Franklin Park 8,884 2,574 $116k $299k 100%
08869 Raritan 8,368 4,201 $108k $457k 100%
07924 Bernardsville 7,713 644 $236k $785k 100%
07921 Bedminster 7,700 419 $123k $433k 100%
08558 Skillman 7,648 491 $236k $910k 95%
07069 Watchung 6,623 1,046 $172k $883k 100%
08853 Neshanic Station 5,634 495 $221k $773k 76%
08880 South Bound Brook 4,867 7,534 $113k $359k 100%
08836 Martinsville 3,855 857 $230k $744k 100%
07931 Far Hills 2,985 136 $201k $1.17M 75%
07934 Gladstone 1,293 416 $245k $846k 98%
07977 Peapack 917 465 $151k $871k 100%
08553 Rocky Hill 819 1,343 $148k $597k 100%
07939 Lyons 322 2,385 – – 100%
08528 Kingston 321 340 – $234k 95%
08821 Flagtown 283 1,189 $156k $443k 100%
08890 Zarephath 17 97 – – 100%

Partly in Somerset County

Residential ZIP codes mainly in another county that reach at least 1% into Somerset County, by their share here
In this county
07063 Plainfield 14,235 7,975 $93k $393k 39%
07060 Plainfield 48,363 9,675 $79k $394k 38%
08540 Princeton 50,388 974 $177k $768k 26%
07979 Pottersville 214 242 – – 19%
07062 Plainfield 15,399 8,008 $98k $396k 12%

Download the 36 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

13 ZIP codes of Somerset County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Somerset County and in the neighboring counties
ZIPIn SomersetElsewhere
0854026%Mercer County 63%; Middlesex County 11%
0706038%Union County 62%
0792082%Morris County 18%
0887686%Hunterdon County 14%
0706212%Union County 88%
0706339%Union County 61%
0881278%Middlesex County 21%; Union County 1%
0855895%Mercer County 5%
0885376%Hunterdon County 24%
0793175%Morris County 25%
0793498%Morris County 2%
0852895%Middlesex County 5%
0797919%Hunterdon County 81%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

PO Box and single-organization ZIP codes

ZIP codes in Somerset County without a residential area (GeoNames postal codes)
ZIPPostal name
07938Liberty Corner
07978Pluckemin
08504Blawenburg
08875Somerset

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Somerset County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Somerset County's ZIP codes use 4 prefixes: 070, 079, 085 and 088.

Three-digit prefixes of Somerset County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Somerset County's
PrefixSectional centerHereAll codes
070 Dv Daniels, NJ (SCF 070) 5 88
079 Dv Daniels, NJ (SCF 070) 10 35
085 Trenton, NJ (SCF 085) 6 37
088 Dv Daniels, NJ (SCF 070) 15 67

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.