ZIP Code Tabulation Area · New Jersey

ZIP Code 08830: Iselin, NJ

ZIP Code 08830 (Iselin, Middlesex County, New Jersey) has an estimated 19,551 residents in 6,512 households. The median household income is $109,500, the median home value is $426,800 and the median gross rent is $2,113/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated

Total population

19,551

Margin of error ±1,646

Median household income

$109,500

Margin of error ±$12,970

Median home value

$426,800

Margin of error ±$20,562

Median gross rent

$2,113/mo

Margin of error ±$106

Median age

38.5 yrs

Margin of error ±2.3 yrs

Mean travel time to work

34.5 min

Margin of error ±7.3 min

How ZIP 08830 compares with New Jersey and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 0883038.5 yrsNew Jersey40.1 yrsUnited States38.9 yrs

Median household income

ZIP 08830$109,500New Jersey$103,556United States$80,734

Per capita income

ZIP 08830$45,254New Jersey$54,253United States$44,673

Poverty rate

ZIP 088307.9%New Jersey9.7%United States12.5%

Unemployment rate

ZIP 088303.9%New Jersey6.3%United States5.2%

Bachelor's degree or higher

ZIP 0883053.7%New Jersey43.6%United States35.7%

Median home value

ZIP 08830$426,800New Jersey$454,400United States$332,700

Median gross rent

ZIP 08830$2,113/moNew Jersey$1,720/moUnited States$1,413/mo

Owner-occupied homes

ZIP 0883065.3%New Jersey63.8%United States65.2%

Mean travel time to work

ZIP 0883034.5 minNew Jersey30.5 minUnited States26.4 min

Worked from home

ZIP 0883020.8%New Jersey16.8%United States15.1%

All figures for ZIP 08830

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 08830 — ACS 2020–2024 5-year estimates
MeasureZIP 08830Margin of errorNew JerseyUnited States
Total population19,551±1,6469,343,809334,922,499
Median age38.5 yrs±2.3 yrs40.1 yrs38.9 yrs
Households6,512±5133,507,701129,227,496
Median household income$109,500±$12,970$103,556$80,734
Per capita income$45,254±$4,007$54,253$44,673
Poverty rate7.9%±2.7 pts9.7%12.5%
Unemployment rate3.9%±1.5 pts6.3%5.2%
Bachelor's degree or higher53.7%±5.4 pts43.6%35.7%
Median home value$426,800±$20,562$454,400$332,700
Median gross rent$2,113/mo±$106$1,720/mo$1,413/mo
Owner-occupied homes65.3%±5.6 pts63.8%65.2%
Mean travel time to work34.5 min±7.3 min30.5 min26.4 min
Worked from home20.8%±3.6 pts16.8%15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 08830
GroupZIP 08830New JerseyUnited States
White alone, not Hispanic or Latino23.1%50.9%57.4%
Black or African American alone, not Hispanic or Latino10.8%12.2%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.0%0.1%0.5%
Asian alone, not Hispanic or Latino48.3%10.0%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino0.0%0.0%0.2%
Some other race alone, not Hispanic or Latino0.8%0.8%0.6%
Two or more races, not Hispanic or Latino2.2%3.5%4.3%
Hispanic or Latino (of any race)14.8%22.5%19.3%

Where ZIP 08830 is

State
New Jersey
Main county
Middlesex County
Largest overlapping place
Iselin (100% of the ZIP's land area)
Land area
3.16 sq mi· about 6,187 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Middlesex County

08810 Dayton, NJ08816 Middlesex County, NJ08817 Middlesex County, NJ08820 Middlesex County, NJ08824 Kendall Park, NJ08828 Helmetta, NJ08831 Middlesex County, NJ08832 Keasbey, NJ08837 Middlesex County, NJ08840 Metuchen, NJ08846 Middlesex, NJ08850 Milltown, NJ08852 Monmouth Junction, NJ08854 Middlesex County, NJ08857 Old Bridge, NJ08859 Sayreville, NJ08861 Perth Amboy, NJ08863 Fords, NJ08872 Sayreville, NJ08879 Sayreville, NJ08882 South River, NJ08884 Spotswood, NJ08901 New Brunswick, NJ08902 Middlesex County, NJ

See every ZIP code in New Jersey, or compare ZIP 08830 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

  • U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
  • U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
  • Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.