ZIP code
08830
in Iselin, New JerseyPopulation 19,551
66.83/ 100
Ranked #1,336 of 32,066 US ZIPs (top 4.2%)
Ranked #211 of 583 New Jersey ZIPs (top 36%)
Ranked #347 of 853 New York-Newark-Jersey City, NY-NJ ZIPs (top 41%)
Ranks are modeled estimates — ZIPs a few hundred places apart are effectively tied.
What defines this ZIP
Metrics where this ZIP sits in the tails of the national distribution — the ones that most set it apart. Select any tile for its definition and methodology.
PFOA in drinking water
100%
at the national maximum
Lower is healthier
ST99thUS99thDefinition & source ›
The share of residents served by public water systems where PFOA, one of the man-made “forever chemicals,” was detected in EPA testing.
Measured from EPA records for the public water systems that serve this ZIP. Households on private wells — roughly 30% of the US population — are not covered by this measure, and this figure says nothing about their water.
Full methodology ›Obesity
24%
in the bottom 4.2% nationally
Lower is healthier
ST20thUS4thDefinition & source ›
The estimated share of adults with obesity, defined as a body-mass index of 30 or higher.
Full methodology ›Loud transportation noise
3.2%
in the top 3.5% nationally
Lower is healthier
ST96thUS97thDefinition & source ›
The modeled share of residents exposed to average road, rail, and aviation noise at or above 65 decibels — around the volume of normal conversation.
Full methodology ›Cognitive disability
9.0%
in the bottom 2.1% nationally
Lower is healthier
ST24thUS2ndDefinition & source ›
The estimated share of adults with serious difficulty concentrating, remembering, or making decisions.
Full methodology ›Tree cover
0.00%
at the national minimum
Higher is healthier
ST1stUS1stDefinition & source ›
The share of this ZIP’s land area covered by forest.
Full methodology ›PFAS in drinking water
100%
at the national maximum
Lower is healthier
ST99thUS99thDefinition & source ›
The share of residents served by public water systems where PFAS — man-made “forever chemicals” that build up in the body and environment instead of breaking down — were detected in EPA testing.
Measured from EPA records for the public water systems that serve this ZIP. Households on private wells — roughly 30% of the US population — are not covered by this measure, and this figure says nothing about their water.
Full methodology ›Walkability
150 intersections/sq mi
in the top 5.3% nationally
Higher is healthier
ST86thUS95thDefinition & source ›
The number of street intersections per square mile — a standard street-connectivity measure; denser networks correlate with more walkable neighborhoods.
Full methodology ›Transportation noise
12.8%
in the top 5.7% nationally
Lower is healthier
ST89thUS94thDefinition & source ›
The modeled share of residents exposed to average road, rail, and aviation noise at or above 55 decibels — a noticeable background presence.
Full methodology ›Independent-living disability
5.0%
in the bottom 2.7% nationally
Lower is healthier
ST22ndUS3rdDefinition & source ›
The estimated share of adults who have difficulty doing errands alone, such as visiting a doctor’s office, because of a physical, mental, or emotional condition.
Full methodology ›Hearing disability
4.7%
in the bottom 4.5% nationally
Lower is healthier
ST14thUS4thDefinition & source ›
The estimated share of adults who are deaf or have serious difficulty hearing.
Full methodology ›The read
Iselin, New Jersey (ZIP 08830), overall, ranks in the top 4.2% healthiest ZIPs nationally (1,336th) and the top 36% of New Jersey (211th).
Taken together, the data gives a genuinely mixed reading: modeled obesity lies in the bottom 4.2% nationally, modeled cognitive disability stands in the bottom 2.1% nationally, and walkability rests in the top 5.3% nationally. Modeled independent living disability registers in the bottom 2.7% nationally, and hearing disability resides in the bottom 4.5% nationally. On the other side, PFOA in drinking water settles at the national maximum, and modeled loud transportation noise is in the top 3.5% nationally. Modeled tree cover sits at the national minimum, and PFAS in drinking water lands at the national maximum. Modeled transportation noise lies in the top 5.7% nationally.
Measured against the nearby ZIPs, park land runs far higher than the surrounding ZIPs on this measure. Defined simply, PFOA in drinking water is one of the man-made "forever chemicals" that build up in the body and environment instead of breaking down. PFAS in drinking water is the family of man-made "forever chemicals" that build up in the body and environment instead of breaking down. Loud transportation noise is the modeled share of an area exposed to road, rail, and air noise at or above 65 decibels, near conversation volume. ZIP 08820, just across the boundary, comes out healthier overall.
What’s driving this score
Nine domains make up the ZipVitals Score — here is how this ZIP does on each, and how much each one counts. Compare it against the US, this state and the New York-Newark-Jersey City, NY-NJ metro area.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Chronic Disease Burden
healthier than 94%
21%
Social Need / SDOH
healthier than 79%
16%
Preventive Care
healthier than 64%
13%
Risk Behavior
healthier than 85%
11%
Mental Health
in the top 0.3%
8%
Disability
healthier than 96%
7%
Climate / Disaster Risk
healthier than 66%
5%
Healthcare Access
healthier than 70%
5%
Holding it back
Environmental Hazard
healthier than 2%
14%
Lifting this score
Chronic Disease Burden
healthier than 85%
21%
Risk Behavior
healthier than 66%
11%
Mental Health
healthier than 96%
8%
Disability
healthier than 75%
7%
Climate / Disaster Risk
healthier than 65%
5%
Healthcare Access
healthier than 64%
5%
About typical
Preventive Care
healthier than 43%
13%
Holding it back
Social Need / SDOH
healthier than 40%
16%
Environmental Hazard
healthier than 1%
14%
Lifting this score
Chronic Disease Burden
healthier than 82%
21%
Risk Behavior
healthier than 67%
11%
Mental Health
healthier than 96%
8%
Disability
healthier than 73%
7%
About typical
Social Need / SDOH
healthier than 45%
16%
Climate / Disaster Risk
healthier than 49%
5%
Healthcare Access
healthier than 46%
5%
Holding it back
Environmental Hazard
in the bottom 1.0%
14%
Preventive Care
healthier than 33%
13%
“Share” is how much of this ZIP’s score the domain accounts for. Percentages are rounded; higher is healthier in every domain. How the score works, and who it compares you with ›
Findings that name this ZIP
One of our published findings lists this ZIP code. Each finding compares one published measure against a stated benchmark, and names only the ZIP codes whose estimates are reliable enough to rank. See all surprising findings.
Heavy environment, light chronic burden
Where the environment and chronic illness point in opposite directions
Environmental-hazard standing 1.8 (bottom 10%); chronic-disease standing 94.4 (top 10%) — 93 points apart, heavier on the environment than it is on chronic illness.
Ranked #18,019 of the 18,187 ZIP codes this finding names, ordered by the gap from cleanest environment to heaviest chronic burden, highest first.
Nearby & similar ZIPs
Editorially selected — see how this ZIP compares to nearby and similar places.
Nearby
07067
New Jerseyshares a border
Score 62.95
Closest healthier
08820
New Jerseyshares a border
Score 73.09
Similar health profile
07650
New Jersey99% similar profile
Score 68.41
How these were chosen: only ZIPs with a published Score appear — a nearby ZIP with too little data to score won’t. Nearby means closest by distance between ZIP boundaries, which can cross state lines. A similar health profile is a close match across the nine Score domains, not similar demographics. Distances are measured between ZIP boundaries — ZIPs that touch share a border. How distance is measured
Evidence
Every measure this page draws on, by source. Collapsed by default — the full data stays in the page for search engines either way.
Health OutcomesCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Arthritis among adults | 18.8% | 16.9–20.8 |
| High blood pressure among adults | 31.7% | 29.0–34.5 |
| Cancer (non-skin) or melanoma among adults | 5.8% | 5.3–6.4 |
| Current asthma among adults | 7.4% | 6.5–8.3 |
| Coronary heart disease among adults | 4.7% | 4.2–5.2 |
| Chronic obstructive pulmonary disease among adults | 3.8% | 3.4–4.4 |
| Depression among adults | 10.6% | 9.1–12.2 |
| Diagnosed diabetes among adults | 11.5% | 10.1–12.9 |
| High cholesterol among adults who have ever been screened | 39.9% | 36.9–42.9 |
| Obesity among adults | 24.0% | 20.7–27.5 |
| Stroke among adults | 2.6% | 2.4–2.8 |
| All teeth lost among adults aged >=65 years | 8.5% | 6.9–10.4 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 8.1% | 6.8–9.5 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 77.5% | 74.7–79.9 |
| Visits to doctor for routine checkup within the past year among adults | 79.4% | 76.6–81.9 |
| Cholesterol screening among adults | 89.6% | 88.1–90.9 |
| Colorectal cancer screening among adults aged 45–75 years | 63.2% | 59.0–67.1 |
| Visited dentist or dental clinic in the past year among adults | 68.4% | 65.5–71.1 |
| Mammography use among women aged 50-74 years | 75.4% | 69.0–80.8 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 12.1% | 10.3–14.1 |
| Current cigarette smoking among adults | 8.9% | 7.5–10.5 |
| No leisure-time physical activity among adults | 24.8% | 21.6–28.1 |
| Short sleep duration among adults | 38.0% | 34.1–42.1 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 15.1% | 13.2–17.1 |
| Frequent mental distress among adults | 12.1% | 10.7–13.6 |
| Frequent physical distress among adults | 9.8% | 8.7–11.0 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 9.0% | 8.0–10.3 |
| Any disability among adults | 21.2% | 18.7–23.8 |
| Hearing disability among adults | 4.7% | 4.2–5.3 |
| Independent living disability among adults | 5.0% | 4.5–5.6 |
| Mobility disability among adults | 9.5% | 8.3–10.8 |
| Self-care disability among adults | 2.4% | 2.2–2.7 |
| Vision disability among adults | 3.8% | 3.4–4.2 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 27.2% | 24.0–30.4 |
| Food insecurity in the past 12 months among adults | 12.3% | 10.2–14.3 |
| Received food stamps in the past 12 months among adults | 5.6% | 4.5–6.6 |
| Housing insecurity in the past 12 months among adults | 9.2% | 7.8–10.7 |
| Lack of reliable transportation in the past 12 months among adults | 5.9% | 5.1–6.7 |
| Loneliness among adults | 34.5% | 30.9–38.3 |
| Utility services shut-off threat in the past 12 months among adults | 4.6% | 4.0–5.3 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | NJ median (p10–p90) |
|---|---|---|---|
| Poverty rate | 7.9% | 10.6% (3.1–25.8%) n=32,364 | 5.8% (1.8–16.1%) n=588 |
| Uninsured 18–64 | 5.2% | 9.0% (1.5–24.3%) n=32,286 | 5.6% (1.2–16.1%) n=585 |
| No HS diploma (25+) | 9.6% | 7.9% (1.8–20.7%) n=32,505 | 5.3% (1.4–15.4%) n=589 |
| Bachelor's or higher (25+) | 53.7% | 23.3% (9.2–53.6%) n=32,505 | 44.2% (20.0–72.5%) n=589 |
| Unemployment rate (16+) | 3.9% | 3.9% (0.0–9.8%) n=32,274 | 5.3% (2.5–9.7%) n=583 |
| Households without a vehicle | 4.1% | 3.9% (0.0–12.5%) n=32,322 | 4.8% (0.8–17.6%) n=585 |
| Broadband subscription | 95.6% | 89.3% (75.1–97.1%) n=32,322 | 94.4% (88.0–98.5%) n=585 |
| Housing cost burden (≥30% income) | 39.4% | 23.7% (10.6–40.0%) n=32,322 | 31.7% (22.1–46.5%) n=585 |
| Homeownership rate | 65.3% | 78.7% (51.7–94.0%) n=32,322 | 77.5% (39.3–94.9%) n=585 |
| Crowded housing (>1 per room) | 7.4% | 1.3% (0.0–6.3%) n=32,322 | 1.4% (0.0–7.4%) n=585 |
| Foreign-born population | 50.4% | 2.6% (0.0–18.6%) n=32,553 | 13.7% (3.3–39.5%) n=590 |
| Single-parent households | 48.1% | 53.6% (37.3–74.1%) n=32,087 | 49.6% (35.2–64.9%) n=581 |
| Population 65+ | 16.1% | 19.4% (10.8–33.6%) n=32,553 | 17.8% (11.7–27.5%) n=590 |
| Median age | 38.5 yr | 42.2 yr (33.0–56.3) n=32,292 | 42.0 yr (35.6–51.8) n=582 |
| Median household income | $109,500 | $72,070 ($46,039–$118,707) n=30,318 | $111,711 ($68,311–$188,075) n=565 |
| Median home value | $426,800 | $222,200 ($100,300–$579,820) n=30,049 | $449,450 ($250,890–$845,440) n=564 |
| Median gross rent | $2,113 | $1,021 ($677–$1,912) n=25,670 | $1,781 ($1,267–$2,530) n=516 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | NJ median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 80.9 yr ± 0.84 | 78.9 yr (74.7–82.8) n=31,308 | 80.4 yr (76.6–83.7) n=571 |
About the ± — it’s this estimate’s give-or-take (statisticians call it the standard error). The true life expectancy for this ZIP most likely falls within 0.84 years of 80.9, and it’s very unlikely to be off by more than twice that.
More ZIPs to explore ▾More ZIPs to explore ▴
How these lists were built: they draw only from ZIPs that have a published Score, so ZIPs with too little data to score are not listed. Distance-based lists use distance between ZIP boundaries with no state filter, so an out-of-state ZIP can appear. Statistically similar means a close match across the nine Score domains, not a demographic match: the measure is the cosine similarity between two ZIPs’ domain scores, taken over the domains both ZIPs have data for and only where that overlap covers at least six of the nine — and where no ZIP clears that minimum-overlap floor, that list is left out rather than filled with a weak match. How distance is measured