Hamilton, NJ GIS Map
Hamilton is a city in Mercer County, New Jersey, with a population of about 92,297. The map below shows its location, boundary and surrounding roads, with federal GIS layers you can turn on for the area.
- County
- Mercer County
- Population
- 92,297
- Elevation
- 60 ft
- Coordinates
- 40.2171, -74.7429
- ZIP codes (5)
- 08611, 08640, 08641, 08644, 08648
- Land area
- 4.3 sq mi
- Time zone
- America/New York
About Hamilton, NJ
Hamilton is a city in Mercer County, New Jersey, with a population of about 92,297. It is the 9th most populous of the 50 New Jersey cities listed on GIS Map.
Cities Near Hamilton
- Trenton, NJ0 mi
- Princeton, NJ10 mi
- Old Bridge, NJ20 mi
- Franklin, NJ21 mi
- Doylestown, PA21 mi
- New Brunswick, NJ24 mi
- Cherry Hill, NJ25 mi
- Somerville, NJ26 mi
Other Cities in Mercer County
GIS Data for Hamilton, NJ
The Hamilton map loads live federal GIS layers in your browser, so you can check flood zones, terrain, land cover and district boundaries for any address in Hamilton without a separate GIS login. Everything below is drawn from public U.S. government data.
Layers you can turn on
FEMA flood zones
National Flood Hazard Layer — flood insurance rate map zones.
Elevation contours and hillshade
USGS 3DEP terrain, so you can read slope and relief.
Land cover
NLCD land cover classes — forest, developed, wetland, water.
School districts
Census TIGER unified and elementary school district boundaries.
ZIP code and county boundaries
Census TIGER ZCTA and county boundary lines.
Map tools
Measure distance and area
Draw a line or polygon to get length in miles or area in acres.
Sketch and annotate
Add points, lines and shapes on top of the map.
Inspect any point
Click the map to read coordinates, elevation and the layers under your cursor.
Download the map
Save the current view as a PNG image.
Hamilton Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
11,622
Households
4,265
Median household income
$138,162
Median age
44.9 years
Median home value
$397,000
Median gross rent
$2,139/mo
Owner-occupied homes
95.6%
Bachelor's degree or higher
46.4%
Below poverty level
2.2%
Land area
4.3 sq mi
Population density
2,718 / sq mi
County
Photos of Hamilton
Hover over a photo to see it larger. Tap on mobile.
Photos from Wikimedia Commons, taken in or near Hamilton. Credits and licenses are shown in the larger view.
Federal Buildings & Leases in Hamilton
GSA-managed federal properties in and around Hamilton.
| Property | Address | Status | Sq ft | Lease ends |
|---|---|---|---|---|
| Mountain View Office Park Ewing II | 840 Bear Tavern Rd, 08628 | Leased | 20,709 | Aug 2028 |
| Mountain View Office Park Ewing II | 840 Bear Tavern Rd, 08628 | Leased | 20,709 | Aug 2027 |
| Enterprise Park Ewing | 818-820 Silvia Sreet, Unit 800b, 08628 | Leased | 10,205 | Dec 2030 |
| American Metro Center | 200 American Metro Blvd., 08619 | Leased | 9,929 | Mar 2028 |
| Princeton South At Lawrenceville | 9 Princess Rd, 08648 | Leased | 3,420 | Jan 2029 |
| East Hangar | 4 Pitcairn Ave, 08628 | Leased | 2,475 | Jan 2028 |
Source: U.S. GSA Inventory of Owned and Leased Properties (data.gov), September 2026.
Soils of Hamilton
General soil map unit at the city center: Klej-Galestown-Evesboro-Downer
Soil Properties
- Drainage class
- Well drained
- Hydrologic soil group
- A (high infiltration, low runoff)
- Available water storage (0–150 cm)
- 15.4 cm
- Typical slope
- 2%
Soil Components
- Klej14%
Entisols · Aquic Quartzipsamments
- Evesboro11%
Entisols · Lamellic Quartzipsamments
- Downer11%
Ultisols · Typic Hapludults
- Galestown10%
Ultisols · Psammentic Hapludults
- Atsion9%
Spodosols · Aeric Alaquods
- Urban land8%
Source: USDA NRCS U.S. General Soil Map (STATSGO2). General soil map data (1:250,000 scale) is not suitable for site-specific decisions.
Climate of Hamilton
30-year averages (1991–2020) from the Trenton State College, Nj weather station, elevation 100 ft, 4.6 miles from the city center.
Warmest month
Jul · avg high 86°F
Coldest month
Jan · avg low 23°F
Annual precipitation
47.3 in
Average Monthly Temperatures (°F)
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 40 | 43 | 51 | 63 | 73 | 82 | 86 | 84 | 78 | 66 | 55 | 44 |
| Avg low °F | 23 | 24 | 31 | 40 | 50 | 59 | 65 | 63 | 56 | 44 | 34 | 26 |
| Precip. in | 3.64 | 2.75 | 4.43 | 3.64 | 3.54 | 4.65 | 4.82 | 4.27 | 4.13 | 3.98 | 3.16 | 4.34 |
Source: NOAA NCEI U.S. Climate Normals, 1991–2020. Conditions at the station may differ from other parts of the city.
Natural Hazard Risk in Hamilton
FEMA National Risk Index ratings for Mercer County, compared with all U.S. counties.
Overall risk
Score 95.4 of 100
Expected annual loss
Buildings, population & agriculture
Social vulnerability
Susceptibility to hazard impacts
Community resilience
Ability to prepare & recover
Risk by Hazard
- Strong WindVery High
- Winter WeatherVery High
- Inland FloodingRelatively High
- Ice StormVery High
- Heat WaveRelatively Moderate
- HurricaneRelatively High
- EarthquakeRelatively Moderate
- LightningRelatively High
- Cold WaveRelatively Moderate
- TornadoRelatively Moderate
- WildfireRelatively Low
- DroughtRelatively Low
- Coastal FloodingRelatively Low
- LandslideVery Low
- HailVery Low
Source: FEMA National Risk Index (December 2025 release). County-level ratings are relative to other U.S. counties and are not a property-specific assessment.
Hamilton FAQ
What county is Hamilton in?
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Hamilton, New Jersey is located in Mercer County.
What is the population of Hamilton?
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Hamilton has a population of about 92,297, making it the number 9 of the 50 New Jersey cities listed on GIS Map.
What is the elevation of Hamilton?
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The elevation of Hamilton is approximately 60 feet (18 meters) above sea level at the city center.
What ZIP codes are in Hamilton?
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ZIP codes for Hamilton include 08611, 08640, 08641, 08644, 08648.
What time zone is Hamilton in?
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Hamilton is in the Eastern Time zone (America/New York).
How far is Hamilton from Trenton?
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Hamilton is about 1 miles from Trenton, the capital of New Jersey, in a straight line.
How far is Hamilton from Newark?
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Hamilton is about 47 miles from Newark, the largest city in New Jersey listed on GIS Map, in a straight line.
What cities are near Hamilton?
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Cities near Hamilton include Trenton, NJ (0 miles); Princeton, NJ (10 miles); Old Bridge, NJ (20 miles); Franklin, NJ (21 miles); Doylestown, PA (21 miles).
Local notes for Hamilton, NJ
Questions and local knowledge from people who know the area. Every note is read before it appears here.