PlainZIP

Iselin, NJ · standard

ZIP Code 08830

Middlesex County, New Jersey - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

18,459
2,245/sq mi
$109,500
Median income
$426,800
Median home value
53.7%
Bachelor's or higher

The verdict

Iselin pairs an upper-quartile household income with upper-quartile home values, in a suburban-density, homeowner-dominated area.

Top 14%
household income, US ZIPs
Top 18%
home value, US ZIPs
2,245
people per sq mi
65%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 08830 against every reporting US ZIP.

ZIP code 08830 is a mid-sized community (a standard USPS delivery area) in Iselin, Middlesex County, New Jersey, home to 18,459 residents across 8.2 square miles, a density of 2,245 people per square mile, in the New York time zone.

ZIP 08830 lands in the middle-income range, with a median household income of $109,500 (10% below the New Jersey average), while per-capita income is $45,254. The poverty rate stands at 7.9% and the unemployment rate at 3.9%. On housing, the median home value is $426,800 (17% below the state average) with median rent at $2,113 per month, and 65.3% of occupied units are owner-occupied.

This is a highly-educated ZIP: 53.7% of adults hold a bachelor's degree or higher, the median age is 38.5, and the average commute is 35 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Middlesex County, so you can benchmark 08830 against its immediate geography rather than a national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 08830

Top 5 sectors by establishment count in Iselin, NJ

Which industries have the most business establishments in ZIP 08830.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 08830, Iselin, NJ · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

18,459

Population

8.2

Area (sq mi)

2,245

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 08830?

38.5

Median Age

50.1%

Male

49.9%

Female

50.4%

Foreign-Born

White 25.4%
African American 10.8%
Asian 48.5%
American Indian or Alaska Native 0.1%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 7.5%
Hispanic or Latino 14.8%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$109,500

Median Household Income

-10% vs state

$45,254

Per Capita Income

7.9%

Poverty Rate

3.9%

Unemployment Rate

34.5 min

Mean Commute Time

How ZIP 08830 ranks nationally

Iselin, NJ household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$109,500 Top 14% higher than 86% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). This entry sits in this band. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 72.7%
Bachelor's Degree or Higher 53.7%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

6,738

Total Housing Units

6,512

Occupied Units

226

Vacant Units

3.00

Avg Household Size

Occupancy Type

Owner 65.3%
Renter 34.7%

$426,800

Median Home Value

-17% vs state

$2,113

Median Rent

1959

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+14.8%

YoY Change (2024)

329

HPI Index (2000 = 100)

+229%

Total Change Since 2000

Home values in ZIP 08830 have increased 14.8% over the past year (2024). Since 2000, this ZIP has seen +229% cumulative appreciation.

Year Annual Change HPI Index
2020 +3.0% 207
2021 +8.4% 225
2022 +18.2% 265
2023 +7.9% 286
2024 +14.8% 329

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 789 business establishments in ZIP 08830, employing approximately 21,378 people with a combined annual payroll of $2,743,263,000.

789

Businesses

21,378

Employees

$2.7B

Annual Payroll

17

Industry Sectors

Industry Establishments % of Total
Professional, scientific, and technical services 262 33.2%
Retail trade 85 10.8%
Finance and insurance 67 8.5%
Accommodation and food services 59 7.5%
Health care and social assistance 46 5.8%
Other services (except public administration) 45 5.7%
Transportation and warehousing 41 5.2%
Administrative and support and waste management and remediation services 41 5.2%
Wholesale trade 40 5.1%
Real estate and rental and leasing 28 3.5%
Information 24 3.0%
Construction 14 1.8%
Management of companies and enterprises 10 1.3%
Educational services 9 1.1%
Manufacturing 8 1.0%
Utilities 5 0.6%
Arts, entertainment, and recreation 4 0.5%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 08830 vs 07067 →

ZIP 08830 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 08830 ranks #4 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 08830 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 08830 ranks #7 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
07067 Colonia, NJ 18,036 1.6 mi
08863 Fords, NJ 12,320 2.9 mi
07095 Woodbridge, NJ 19,844 2.0 mi
07066 Clark, NJ 14,756 3.5 mi
08820 Edison, NJ 39,590 2.6 mi
07001 Avenel, NJ 16,305 2.6 mi
08832 Keasbey, NJ 2,863 3.7 mi
08840 Metuchen, NJ 16,558 2.8 mi
07064 Port Reading, NJ 3,723 3.6 mi
07065 Rahway, NJ 27,346 3.2 mi

More ZIP Codes in Middlesex County

08854 standard
Piscataway, NJ
Pop: 55,961
08901 standard
New Brunswick, NJ
Pop: 55,223
08861 standard
Perth Amboy, NJ
Pop: 53,099
08816 standard
East Brunswick, NJ
Pop: 46,298
08831 standard
Monroe Township, NJ
Pop: 45,620
08817 standard
Edison, NJ
Pop: 44,621

Related Areas

Middlesex County Iselin, NJ New Jersey

Frequently Asked Questions

What county is ZIP code 08830 in? ▼
ZIP code 08830 (Iselin) is located in Middlesex County, New Jersey. Middlesex County contains multiple ZIP codes, see the full list at /counties/middlesex-nj.
What is the population of ZIP code 08830? ▼
ZIP code 08830 in Iselin, NJ has a population of 18,459 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 08830? ▼
The median household income in ZIP 08830 is $109,500, which is 44% above the national average of $76,288.
What is the average home value in ZIP 08830? ▼
The median home value in ZIP 08830 is $426,800, which is 53% above the national average of $278,155.
What is the demographic makeup of ZIP 08830? ▼
The largest racial group in ZIP 08830 is Asian at 48.5%. Hispanic or Latino residents make up 14.8% of the population.
How many businesses are in ZIP code 08830? ▼
ZIP code 08830 has 789 business establishments employing approximately 21,378 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 08830? ▼
The top industries by establishment count in ZIP 08830 are: Professional, scientific, and technical services (262), Retail trade (85), Finance and insurance (67). There are 17 industry sectors represented in total.
How have home values changed in ZIP code 08830? ▼
According to the FHFA House Price Index, home values in ZIP 08830 increased by 14.8% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 229%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 08830? ▼
In ZIP code 08830, 72.7% of residents aged 25+ have a high school diploma or higher, and 53.7% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 08830? ▼
The mean commute time for workers in ZIP code 08830 is 34.5 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 08830? ▼
In ZIP code 08830, approximately 65.3% of occupied housing units are owner-occupied and 34.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 08830? ▼
The poverty rate in ZIP code 08830 is 7.9% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.