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 High-density area
- $109,500
- Median income Above-median income area
- $426,800
- Median home value Above-median home value
- 53.7%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
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.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 08830 (Iselin, NJ) rose +14.8% from 2023 to 2024. The all-transactions index moved from 286.4 in 2023 to 328.6 in 2024 (2000 = 100).
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 average New Jersey ZIP), while per-capita income is $45,254. Both reported hardship measures are comparatively low in absolute terms: poverty is 7.9% and unemployment is 3.9%. Home values sit below the statewide ZIP benchmark: the median is $426,800 (17% below the average New Jersey ZIP), and median rent is $2,113; owner occupancy is 65.3%.
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. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Middlesex County, so 08830 can be compared with both its immediate and county-level context.
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.
- Professional, scientific, and technical services
Professional, scientific, and technical services
262 establishments
- Retail trade 85
Retail trade
85 establishments
- Finance and insurance 67
Finance and insurance
67 establishments
- Accommodation and food services 59
Accommodation and food services
59 establishments
- Health care and social assistance 46
Health care and social assistance
46 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, 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
Who lives in ZIP 08830?
38.5
Median Age
50.1%
Male
49.9%
Female
50.4%
Foreign-Born
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 ZIP avg
$45,254
Per Capita Income
7.9%
Poverty Rate
3.9%
Unemployment Rate
34.5 min
Mean Commute Time
How ZIP 08830 ranks among New Jersey ZIPs
Iselin, NJ household income vs. every New Jersey ZIP code
Median household income among 565 reporting New Jersey ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$109,500 47th percentile higher than 47% of 565 New Jersey ZIPs
Each bar is a $20K-wide band; taller bars hold more New Jersey 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
6,738housing units
6,738
Total Housing Units
6,512
Occupied Units
226
Vacant Units
3.00
Avg Household Size
Occupancy Type
$426,800
Median Home Value
-17% vs state ZIP avg
$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.
- 08820
Edison (08820)
39,590 residents
- 07065
Rahway (07065)
27,346 residents
- 07095
Woodbridge (07095)
19,844 residents
- 08830
Iselin (08830)
18,459 residents
- 07067
Colonia (07067)
18,036 residents
- 08840
Metuchen (08840)
16,558 residents
- 07001
Avenel (07001)
16,305 residents
- 07066 14,756
Clark (07066)
14,756 residents
- 08863 12,320
Fords (08863)
12,320 residents
What this shows Among its immediate neighbors, ZIP 08830 ranks #4 by population - useful context the national average alone can't give.
ZIP 08830 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 08820
Edison (08820)
$171,363 median income
- 08840
Metuchen (08840)
$146,635 median income
- 07064
Port Reading (07064)
$133,854 median income
- 07066
Clark (07066)
$133,504 median income
- 07067
Colonia (07067)
$122,713 median income
- 08863
Fords (08863)
$115,861 median income
- 08830
Iselin (08830)
$109,500 median income
- 07095
Woodbridge (07095)
$104,926 median income
- 07001
Avenel (07001)
$101,670 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.
| 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 |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 08830, both outside NJ so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (18,459 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Middlesex County
Related Areas
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.
Related
Take this with you
What to do with ZIP 08830's numbers, next.
- See how ZIP 08830 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Iselin, NJ ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
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ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.