Population & age
- Total population
- 19,959
- Median age
- 49.7
Mercer County · Trenton-Princeton, NJ · Population 19,959
Hamilton Square, NJ (ZIP 08690) sits in Mercer County within the Trenton-Princeton metro area. The page draws on 2 federal data feeds retrieved Apr 27. Top health signal: Obesity comes in below the national average at 22.6%. NCES lists 12 schools serving the area, 12 non-charter. 8 colleges and universities serve the area, with median in-state tuition of $19,632. IRS data shows average household income (AGI) of $100,429, well above the ~$45K national average per return. BLS QCEW puts average annual pay at $90,503 per worker — about 38% above the US average and a clear high-wage signal. FEMA has issued 28 federal disaster declarations affecting this ZIP since 1965 — a high-frequency exposure profile. 27.9% of residents in this county are flagged low-access by USDA's 2025 Food Environment Atlas — a notable supermarket-access gap. New Jersey levies a graduated state income tax (top rate 10.75%); a household at the local median AGI of $100,429 would pay roughly $6,478/year before deductions. IRS migration data (2022-2023) shows a net loss of 3,735 residents (2,322 households) — the ZIP's primary county is shrinking. Healthcare access and school options both run strong here, giving residents a wide menu of providers and enrollment choices nearby. Notable: median household income $114,181, fair market rent of $2,060 for a two-bedroom, and a typical home value of $484,473, up 0.5% over the past year. Every figure on this page links to its underlying federal dataset with a retrieval date so you can audit the freshness yourself.
Studio
$1,420
/month
1 Bed
$1,630
/month
2 Bed
$2,060
/month
3 Bed
$2,470
/month
4 Bed
$2,820
/month
HUD Fair Market Rents represent the 40th percentile of standard-quality rental housing in this area. FY2026 data.
$484,473
Zillow Home Value Index (ZHVI) · as of March 2026
+0.5%
vs. March 2025
+39.9%
vs. March 2021
Trenton-Princeton, NJ
Metropolitan statistical area
Source: Zillow Research, ZHVI All Homes (SFR, Condo/Co-op) Time Series (zillow.com/research/data). Zillow Home Value Index (ZHVI) is copyrighted by Zillow, Inc.
New housing units permitted
2,026
Across 880 permitted buildings. Total construction value: $347.2M.
Single-family
827
41% of total units
Multifamily (2+ unit)
1,199
59% of total units
Single-family value
$181.6M
construction value
Multifamily value
$165.6M
construction value
Apartment construction (5+ unit buildings) accounts for 58% of new units this year — the area is densifying, not just adding single-family stock.
Based on county-level data (2024).
Source: U.S. Census Bureau Building Permits Survey (census.gov/construction/bps). Public domain. BPS reports annual residential building permits from local permit-issuing jurisdictions, aggregated to county. A permit reflects intent to build, not a completed unit — actual construction lags by 6-24 months for multifamily projects.
Tax returns filed
10,660
Average AGI
$100,429
Avg property tax
$1,178
EITC participation
4.7%
Income distribution
Avg mortgage interest
$931
Avg charitable contribution
$619
Avg capital gains
$2,728
Avg total income tax
—
Source: IRS Statistics of Income — Individual Income Tax Statistics by ZIP Code (irs.gov). Public domain. Dollar columns reported in thousands by the IRS; figures here display real dollars. Total ZCTA AGI for the area was $1070.6M across all reported brackets.
Business establishments
446
Total employment
8,375
Annual payroll
$403.5M
Average annual pay
$48,179
Source: U.S. Census Bureau, ZIP Business Patterns (census.gov). Public domain. ZBP covers establishments with paid employees; Census suppresses employment and payroll values when fewer employers operate in a ZIP than would protect their confidentiality.
Average annual pay
$90,503
Average weekly wage
$1,740
Total employment
264,154
Total establishments
11,677
That is roughly 38% above the US national average of $65,470 per worker.
Source: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages (bls.gov/cew). Public domain. QCEW is derived from state unemployment-insurance filings and covers ~95% of US jobs. Figures are county-level totals assigned to ZIPs whose primary county matches; small-employer cells are suppressed by BLS to protect employer confidentiality.
Unemployment rate
4.4%
That is 0.4 percentage points above the US national unemployment rate of about 4.0%.
Labor force
199,583
Employed
190,833
Unemployed
8,750
Based on Mercer County, NJ data (2024).
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics (bls.gov/lau). Public domain. LAUS publishes monthly and annual labor-force estimates for every US county. Figures are county-level totals assigned to ZIPs whose primary county matches.
FDIC-insured bank branches
9
Typical banking access
A standard suburban / mid-density branch count for this area.
Total deposits
$2.0B
across all branches in this ZIP
Distinct institutions
8
different banks operating here
Top banks by deposits in this ZIP
Based on FDIC-insured branch offices as of June 30, 2024.
Source: FDIC Summary of Deposits (fdic.gov). Annual June-30 snapshot of every FDIC-insured branch and the deposits booked there. Figures cover all institutions reporting a branch address in this ZIP.
Facilities located inside ZIP 08690 from CMS Provider Data. Star ratings reflect Overall Hospital Quality where applicable; “Not rated” means the facility didn't report enough measures to qualify.
Hospitals (1)
ROBERT WOOD JOHNSON UNIVERSITY HOSPITAL AT HAMILTON
ONE HAMILTON HEALTH PLACE, HAMILTON, NJ, 08690
Source: Centers for Medicare & Medicaid Services Provider Data (data.cms.gov). Public domain.
FTA tracks transit service at the urbanized-area level. Numbers below reflect the agencies and modes serving the area that contains this ZIP, not stop-level coverage.
Service status
Available
New York--Jersey City--Newark, NY--NJ
Reporting agencies
39
Largest: Academy Lines, Inc.
Annual ridership
—
unlinked trips · 2024
Source: U.S. Federal Transit Administration, National Transit Database (transit.dot.gov). Public domain.
Public EV charging stations
6
Established EV charging
Multiple public charging stations across the ZIP — typical of mid-density suburban and small-urban areas with active EV adoption.
Level 2 ports
11
AC charging — workplace, retail, home
DC Fast ports
0
Highway-class fast charging
Charging networks
Active public stations only. Snapshot taken 2026; AFDC's underlying registry refreshes continuously as stations open and close.
Source: U.S. Department of Energy via NREL (afdc.energy.gov). Per-ZIP counts of active public alternative-fuel stations (electric, hydrogen, propane, CNG, biodiesel, E85, LNG, renewable diesel) and EV charging-port totals.
Federally Declared Disasters
28
Date Range
1965–2021
Most Recent Declaration
REMNANTS OF HURRICANE IDA
Hurricane — declared September 5, 2021 (DR-4614)
Incident period: September 1, 2021 – September 3, 2021
Top Incident Types
Individual Assistance
8
Direct help to disaster survivors
Households Program
9
Housing & temporary lodging support
Public Assistance
27
Repair of public facilities & roads
Hazard Mitigation
13
Funding to reduce future disaster risk
FEMA declares disasters at the county level; counts here include every federally declared disaster touching any county that overlaps this ZIP. Statewide declarations and pre-1964 records without county granularity are excluded. Program flags reflect which FEMA assistance categories were activated (Individual Assistance, Households, Public Assistance, Hazard Mitigation). Source: fema.gov/openfema. Public domain.
30-year averages (1991-2020) from the nearest GHCN-D weather station. Temperature and precipitation values reflect typical annual conditions, not any single year.
Avg. temperature
52.8°F
41.5° – 64.1°
Annual precipitation
47.5"
Annual snowfall
23.7"
Heating · cooling days
5,314.5 · 903.3
Annual base 65°F
Nearest station: HIGHTSTOWN 2 W, NJ US, 5.8 miles from the centroid of Hamilton Square, NJ (ZIP 08690)
Source: NOAA National Centers for Environmental Information, 1991–2020 U.S. Climate Normals (ncei.noaa.gov). Public domain.
Median daily AQI
43
GoodPeak AQI (2024)
133
Unhealthy for Sensitive Groups
Primary pollutant
Ozone
210 days as main pollutant
Days measured
366
Based on Mercer County data (2024).
Source: U.S. Environmental Protection Agency, Air Quality System (epa.gov). Public domain. Only counties with EPA AQS monitoring stations appear here (~30% of US counties); rural ZIPs whose primary county has no monitor will not show this section.
Years of potential life lost (per 100K)
7,664
That is roughly 536 years per 100,000 below the national county median (~8,200).
Premature death is the headline composite outcome CHR reports — age-adjusted, all-cause, before age 75.
Fair or poor health
15%
of adults self-report
Poor physical health days
3.8
avg per adult per month
Poor mental health days
5.3
avg per adult per month
Uninsured
8.7%
of residents under 65
Primary care MDs
90
per 100,000 residents
Preventable hospital stays
2,952
per 100K Medicare enrollees
Food environment (0-10)
9.0
10 = best access & security
Exercise access
99%
residents near a facility
Flu vaccinated
56%
of Medicare enrollees
Low birth weight (under 2,500 g) accounts for 8.1% of live births in this county — an early-life health input that downstream outcomes track against.
Based on Mercer data (2025 CHR release).
Source: County Health Rankings & Roadmaps, University of Wisconsin Population Health Institute (countyhealthrankings.org). Annual release. Underlying source datasets vary by measure (CDC BRFSS, NCHS Vital Statistics, AHA, USDA Food Environment Atlas, and others). Figures are county-level and assigned to every ZIP whose primary county matches.
Food access status
Significant food access concerns
27.9% of Mercer County, NJ residents live more than 1 mile (urban) or 10 miles (rural) from the nearest supermarket.
Grocery stores
0.31
per 1,000 residents
Supercenters & clubs
0.02
per 1,000 residents
SNAP-authorized stores
0.68
accepting food benefits
Fast-food restaurants
0.78
per 1,000 residents
Among low-income residents, 3.7% are low-access — those without a supermarket within 1 mile (urban) or 10 miles (rural).
Per-1,000 figures show how many of each store type exist in Mercer County, NJ for every 1,000 residents. Higher grocery and supercenter density usually means easier access to fresh food; higher convenience-store-only density (with low grocery rate) often signals a food swamp.
Source: USDA Economic Research Service, Food Environment Atlas (ers.usda.gov). County-level metrics fanned to ZIP via the primary county in the Census ZCTA-county relationship file. Variable years differ per family (stores ~2020, low-access ~2019).
FBI publishes crime data at the county level. Numbers below cover the primary county that contains this ZIP. Rates are per 100,000 residents in the area covered by reporting agencies.
Violent crime rate
—
per 100K residents · 3 reports
Property crime rate
—
per 100K residents · 3 reports
Homicide
0
Robbery
1
Burglary
0
Vehicle theft
0
County-level data for Mercer (2024)
Source: U.S. Federal Bureau of Investigation, Uniform Crime Reporting Program (cde.ucr.cjis.gov). Public domain. Coverage varies by reporting agency; areas with partial agency coverage may understate true crime totals.
Net migration (2022-2023)
▼−3,735 people
−2,322 households • −$349.0M net AGI flow
Moved in
10,438households
17,152 people • $1.0B AGI
Moved out
12,760households
20,887 people • $1.4B AGI
Where new residents came from
Where departing residents went
Incoming households reported an average AGI of $98,119 versus departing households' $107,612.
Source: U.S. Internal Revenue Service, Statistics of Income, Migration Data (irs.gov). Public domain. Migration is measured by year-over-year changes in the address on individual tax returns; figures are county-level totals attributed to ZIPs whose primary county matches. Foreign migration contributes to inflow/outflow totals but does not appear in the top-county lists. Small flows are suppressed by IRS to protect taxpayer confidentiality.
State-level rules that apply to every resident of ZIP 08690. Numbers reflect the most recent published year per source.
Income tax
10.75%
graduated · 8 brackets
Sales tax (combined)
6.60%
State 6.63% · avg local 0.02%
Property tax (effective)
2.52%
Median $8,156/year
Tax burden rank
44 of 50
11.90% of personal income
For ZIP 08690: At this ZIP's median AGI of $100,429, the estimated state income tax (before deductions) runs about $6,478 per year. Applied to this ZIP's typical home value of $484,473, that works out to roughly $12,230/year in property tax.
Program
Family Leave Insurance
Mandatory (state-run insurance)
Max weeks/year
26
Parental
12wk
Max weekly benefit
$1,119
Replacement: 85% AWW
SNAP eligibility
185% FPL
Broad-Based Categorical Eligibility (raises gross income limit above federal 130% floor). No asset test.
Sources: Tax Foundation (state tax rates & brackets), Bipartisan Policy Center (paid family leave), USDA FNS (SNAP categorical eligibility).
Nearby ZIPs by distance
08619 (Mercerville, 2.2 mi) · 08691 (Yardville, 3.3 mi) · 08610 (White Horse, 3.7 mi) · 08629 (Trenton, 3.8 mi) · 08620 (Yardville, 3.9 mi) · 08550 (Princeton Junction, 4.2 mi)
Compare ZIP-level stats — population, schools, housing, climate — across nearby areas. Source: U.S. Census Bureau ZCTA basemap.
All data on this page is sourced from federal government datasets · Not AI-generated · Methodology
Crude prevalence estimates from CDC PLACES, derived from BRFSS small-area modeling. Population-level figures only.
22.6%
10.4pp below the 33.0% national rate.
31.1%
Tracks close to the 32.0% national rate.
16.2%
5.8pp below the 22.0% national rate.
80.0%
4.0pp above the 76.0% national rate.
7.3%
5.7pp below the 13.0% national rate.
9.5%
Tracks close to the 11.0% national rate.
12 schools serve this ZIP, including 12 non-charter.
| School | Type | Grades | Enrollment |
|---|---|---|---|
| Hamilton East - Steinert | Public | 9–12 | 1,392 |
| Emily C. Reynolds Middle School | Public | 6–8 | 940 |
| Langtree Elementary School | Public | -1–5 | 393 |
| Alexander Elementary School | Public | -1–5 | 337 |
| University Heights Elementary School | Public | -1–5 | 307 |
Showing top 5 by enrollment. 7 more schools serve this ZIP.
Schools listed from NCES Common Core of Data via the Urban Institute Education Data Portal.
Fresh.NCES CCD via Urban Institute EDP · Apr 27, 2026Colleges in this area
8
Median in-state tuition
$19,632
Median earnings (10 yr)
$66,087
Ewing, NJ · 08628
Trenton, NJ · 08608
Lawrenceville, NJ · 08648
Lawrenceville, NJ · 08648
Ewing, NJ · 08628
Trenton, NJ · 08629
Trenton, NJ · 08629
Ewing, NJ · 08638
Source: U.S. Department of Education College Scorecard (collegescorecard.ed.gov). Public domain data. Earnings figures reflect median earnings 10 years after entry for federally-aided students.
Hamilton Square, NJ (ZIP 08690) sits in Mercer County within the Trenton-Princeton metro area. The page draws on 2 federal data feeds retrieved Apr 27. Top health signal: Obesity comes in below the national average at 22.6%. NCES lists 12 schools serving the area, 12 non-charter. 8 colleges and universities serve the area, with median in-state tuition of $19,632. IRS data shows average household income (AGI) of $100,429, well above the ~$45K national average per return. BLS QCEW puts average annual pay at $90,503 per worker — about 38% above the US average and a clear high-wage signal. FEMA has issued 28 federal disaster declarations affecting this ZIP since 1965 — a high-frequency exposure profile. 27.9% of residents in this county are flagged low-access by USDA's 2025 Food Environment Atlas — a notable supermarket-access gap. New Jersey levies a graduated state income tax (top rate 10.75%); a household at the local median AGI of $100,429 would pay roughly $6,478/year before deductions. IRS migration data (2022-2023) shows a net loss of 3,735 residents (2,322 households) — the ZIP's primary county is shrinking. Healthcare access and school options both run strong here, giving residents a wide menu of providers and enrollment choices nearby. Notable: median household income $114,181, fair market rent of $2,060 for a two-bedroom, and a typical home value of $484,473, up 0.5% over the past year. Every figure on this page links to its underlying federal dataset with a retrieval date so you can audit the freshness yourself.
These two readings tell a consistent story. Strong access numbers usually correlate with denser provider networks, and a high school count signals the population base that supports them. Reading them together: a household weighing this ZIP for a multi-year stay can expect both healthcare and education infrastructure to keep pace.
One concrete reading worth keeping: Depression prevalence sits lower the national rate at 16.2%. Each figure on this page links to the original federal dataset with its retrieval date — this synthesis is a reading, not a substitute for the underlying records.
22.6%, which is 10.4 percentage points below the national average of 33.0% (CDC PLACES, retrieved Apr 24, 2026).
16.2%, which is 5.8 percentage points below the national average of 22.0% (CDC PLACES, retrieved Apr 24, 2026).
31.1%, which is 0.9 percentage points below the national average of 32.0% (CDC PLACES, retrieved Apr 24, 2026).
12 schools serve this ZIP, including 12 public schools (NCES CCD, retrieved Apr 27, 2026). No charter schools are listed in this ZIP by NCES CCD.
No charter schools are listed in ZIP 08690 by NCES CCD (retrieved Apr 27, 2026).
Yes, 5 high schools serve this ZIP: Hamilton East - Steinert, Mercer High School, Mercer County Technical School Health Sciences Academy, and 2 more. (NCES CCD, retrieved Apr 27, 2026).
19,959 people live in ZIP 08690, with a median age of 49.7 (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
$114,181 per year (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
In ZIP 08690, 84.2% of occupied housing units are owner-occupied and 15.8% are renter-occupied (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
In ZIP 08690, 15.0% of workers work from home. Public transit is used by 1.8% of commuters (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
2.7% of the population in ZIP 08690 lives below the federal poverty line (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
92.4% of households in ZIP 08690 have broadband internet access (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
The typical home value in ZIP 08690 is $484,473, up 0.5% from a year ago (Zillow Home Value Index, retrieved May 1, 2026).
Home values are up 0.5% over the past year and up 39.9% over the past five years (Zillow Home Value Index, retrieved May 1, 2026).
The average Adjusted Gross Income reported on tax returns from ZIP 08690 (Hamilton Square, NJ) is $100,429 per return (IRS SOI Tax Year 2022, retrieved May 2, 2026).
Tax returns from ZIP 08690 report an average of $1,178 per return in real-estate tax deductions (IRS SOI Tax Year 2022, retrieved May 2, 2026).
10.1% of tax returns from ZIP 08690 (Hamilton Square, NJ) report Adjusted Gross Income of $200,000 or more (IRS SOI Tax Year 2022, retrieved May 2, 2026).
As of 2022, 446 business establishments operated in ZIP 08690 employing 8,375 workers (Census ZIP Business Patterns, retrieved May 3, 2026).
The average annual pay across all local establishments in ZIP 08690 is $48,179, based on Census ZIP Business Patterns 2022 data (retrieved May 3, 2026).
According to the CDC Social Vulnerability Index (2022), ZIP 08690 ranks in the 26th percentile nationally for social vulnerability — a moderate vulnerability profile (retrieved May 3, 2026).
Household Characteristics is the highest-scoring CDC SVI theme for ZIP 08690, ranking in the 47th percentile nationally (CDC/ATSDR Social Vulnerability Index 2022, retrieved May 3, 2026).
FEMA has recorded 28 federal disaster declarations affecting ZIP 08690 between 1965–2021 (FEMA OpenFEMA Disaster Declarations, retrieved May 3, 2026).
Hurricane is the most common federally declared disaster type affecting ZIP 08690, accounting for 9 of 28 declarations (32%, FEMA OpenFEMA, retrieved May 3, 2026).
The most recent FEMA disaster declaration affecting ZIP 08690 was "REMNANTS OF HURRICANE IDA" — a hurricane declared in 2021 (DR-4614) (FEMA OpenFEMA, retrieved May 3, 2026).
8 colleges and universities are listed near ZIP 08690 by the U.S. Department of Education College Scorecard, including The College Of New Jersey, Thomas Edison State University, and Rider University (retrieved May 2, 2026).
Median in-state tuition across 8 nearby institutions is $19,632 (College Scorecard, retrieved May 2, 2026).
Graduates of nearby colleges earn a median of $66,087 ten years after entry (College Scorecard, retrieved May 2, 2026).
ZIP 08690 has an average annual temperature of 52.8°F and 47.5" of annual precipitation based on the HIGHTSTOWN 2 W, NJ US weather station 5.8 miles from the ZIP centroid (NOAA 1991–2020 Climate Normals, retrieved May 8, 2026).
Yes — ZIP 08690 is part of the New York--Jersey City--Newark, NY--NJ urbanized area, primarily served by Academy Lines, Inc. (National Transit Database 2024, retrieved May 4, 2026).
1 hospital is located in ZIP 08690 1 is rated by CMS, with an average overall rating of 3.0 out of 5 stars (CMS Hospital Compare, 2024).
New Jersey has a graduated income tax with a top rate of 10.75%. Households at the local median AGI of $100,429 would pay roughly $6,478 in state income tax annually (estimated, before deductions). Combined sales tax: 6.60% (Tax Foundation 2025).
New Jersey runs an active paid family leave program (Family Leave Insurance) offering up to 26 weeks of paid leave per year, with a maximum weekly benefit of $1,119 (Bipartisan Policy Center 2026).
This page covers health outcomes from CDC PLACES (40 metrics), school information from NCES CCD (12 schools), demographics from the Census ACS 5-Year (2022), home values from the Zillow Home Value Index, colleges from the U.S. Department of Education College Scorecard (8 institutions), income & tax statistics from the IRS SOI (Tax Year 2022), local business & employment from Census ZIP Business Patterns (2022), social vulnerability scores from the CDC/ATSDR SVI (2022), federal disaster declarations from FEMA OpenFEMA (28 on record), climate normals from NOAA NCEI (1991-2020), county-level crime data from the FBI Crime Data Explorer (2024), public transit coverage from the National Transit Database (2024), hospitals from CMS Hospital Compare, and state-level tax rates from the Tax Foundation. Data is refreshed on Mubboo's standard schedule.
Health data retrieved Apr 24, 2026 from CDC PLACES. School data retrieved Apr 27, 2026 from NCES CCD. Demographics retrieved Apr 30, 2026 from Census ACS 5-Year (2022). Home values retrieved May 1, 2026 from Zillow Research. College data retrieved May 2, 2026 from U.S. Dept of Education College Scorecard. Income & tax statistics retrieved May 2, 2026 from IRS SOI (Tax Year 2022). Business & employment retrieved May 3, 2026 from Census ZBP (2022). Social vulnerability scores retrieved May 3, 2026 from CDC/ATSDR SVI (2022). Federal disaster declarations retrieved May 3, 2026 from FEMA OpenFEMA (28 on record). Climate normals retrieved May 8, 2026 from NOAA NCEI (1991-2020). County-level crime data retrieved May 4, 2026 from the FBI Crime Data Explorer (2024). Transit coverage retrieved May 4, 2026 from the National Transit Database (2024). State-level tax rates retrieved 2026-05-05 15:58:22.284+00 from the Tax Foundation.
Nearby ZIPs by distance
08619 (Mercerville, 2.2 mi) · 08691 (Yardville, 3.3 mi) · 08610 (White Horse, 3.7 mi) · 08629 (Trenton, 3.8 mi) · 08620 (Yardville, 3.9 mi) · 08550 (Princeton Junction, 4.2 mi)
Compare ZIP-level stats — population, schools, housing, climate — across nearby areas. Source: U.S. Census Bureau ZCTA basemap.
Have a specific question about ZIP 08690?
Ask Mubboo — launching Q4 2026.
Data refreshed via Mubboo's ETL pipeline; oldest source on this page retrieved Apr 24, 2026.
Social Vulnerability Index
Overall SVI
26th percentile
Moderate Vulnerability
Based on 9 census tracts, population 20,766
Vulnerability Themes
Households Without Vehicle
440
Limited English Speakers
423
Persons with Disability
2,451
Without HS Diploma
770
Without Health Insurance
817
Adults Age 65+
5,014
The Social Vulnerability Index uses U.S. Census data to identify communities most at risk during public health emergencies and natural disasters. Higher percentiles indicate greater vulnerability. Tract-level scores are aggregated to this ZCTA via Census 2020 ZCTA→Tract crosswalk, weighted by land-area share. Source: atsdr.cdc.gov. Public domain.