Introduction to Hamilton, New Jersey

Hamilton is a township located in Mercer County and is situated next to New Jersey's capital, the city of Trenton. The name was given in tribute to Alexander Hamilton. It's one of the biggest townships in the state of New Jersey, however it does not feature a standard downtown. Instead, it has a collection of small commercial centers.

Retirement communities as well as assisted-living facilities are prominent in the township. The Robert Wood Johnson University Hospital is a primary health care facility for New Jersey. By automobile, New York City is about 80 minutes away, while Philadelphia is approximately a 50 minute drive.


In 1776 Colonial soldiers, led by General George Washington fought the Hessian soldiers in Trenton. General Washington and his army later attacked the troupes led by General Cornwallis in the historically important Battle of Princeton.


Veterans Park features a large number of acres and is popular with residents and visitors. Mercer County Park includes a vast acreage and includes one of the biggest man-made lakes in New Jersey. The lake was constructed in order for the crew team of Princeton to have a lake to utilize for practicing and competitions.

Grounds for Sculpture showcases over 230 large contemporary sculptures. The park also includes gardens, water attractions as well as other natural items of interest. The park promotes contemporary sculpture through exhibitions and educational programs and events. It includes sculptures created by prominent American and international artists.

Sayen Park Botanical Garden began when the Sayens constructed a bungalow featuring Arts and Crafts architecture and a Victorian style interior which is open to the public. The property includes a large collection of plants and flowers acquired from all over the world. The park features over 1000 azaleas, close to 500 rhododendrons and more than 250,000 flowering bulbs. The property also includes ponds, bridges and trails.

There are other notable attractions in the area including the John Abbott II House, New Jersey State Museum, Kuser Farm Mansion & Park, Old Barracks Museum, William Trent House, Bow Hill, Old Barracks Museum as well as the scenic countryside.


New Jersey Transit offers bus transportation for the township. Train service is available to New York City and Philadelphia. Residents have access to the New Jersey Turnpike and prominent interstates and routes. Hamilton is recognized as a regional transportation center.

Higher Education

The College of New Jersey, Rider University and Thomas Edison State College are nearby.


Total Population 89,055
Male Share of the Population 47.8%
Female Share of the Population 52.2%
Senior Citizens 16.8%
Employed Population 16+ 44,735
Age of the Population 42


% of people married 49.9%
Average household size 3

Education and Earnings

Population % with Bachelor Degree or Higher 27.7%
Median Earnings25+ $45,090
Median Earnings Without High School Qualification $22,332
Median Earnings With High School Degree $37,249


Median Family Income $91,568
% Above Poverty Level 93%
% Below Poverty Level 7%

Commute & Sprawl

Average Commute Time 25 minutes
% Working from Home 2.9%
% Walking and Biking to Work 1.3%
% Using Public Transportation 4.2%


People Living Alone 27.5%
Median Gross Rent $1,100
Median House Value $247,900


Other(often includes Hispanic and African American) 25.9%
US/American 0.1%
English 6.3%
Irish 16.2%

Source: American Community Survey, U.S. Census Bureau, 2015, www.census.gov/programs-surveys/acs/.

Hamilton Almanac

Category Value
County Mercer
Standard Zip Codes 08609, 08610, 08611, 08619, 08620, 08629, 08690, 08691
P.O. Box Zip Codes 08650
Phone Area Codes 609
Time Zone Eastern (-5 hours from GMT)
Daylight Savings The city observes Daylight Saving Time.
Latitude 40.208
Longitude -74.674

Hamilton Climate

Nearest Weather Stations


  • Temp ranges are avg daily min and max for the month
  • Precipitation is rainfall (and rainfall equiv of snowfall)

Distance 7.6 miles
Jan Temp 22 to 39 F
Apr Temp 39 to 61 F
Jul Temp 63 to 85 F
Oct Temp 42 to 65 F
Annual Precip 47.6 inches
Distance 16.1 miles
Jan Temp 23 to 42 F
Apr Temp 39 to 65 F
Jul Temp 63 to 87 F
Oct Temp 43 to 69 F
Annual Precip 47.1 inches
Distance 18.3 miles
Jan Temp 21 to 40 F
Apr Temp 39 to 63 F
Jul Temp 64 to 87 F
Oct Temp 42 to 67 F
Annual Precip 48.8 inches

Neighborhood and Nearby Area Names

According to the US Postal Service, Hamilton, its neighborhoods, and/or surrounding areas are also referred to as:

Groveville (08620)

Hamilton Square (08690)

Hamilton Township (08620, 08629, 08690, 08691, 08610, 08611, 08619)

Mercerville (08619)

Robbinsville (08691)

Yardville (08620)

Note that not all alternate names are acceptable for use in US Post Office addresses.

Nearby Cities and Towns

Location Population Median Family Income
Allentown 1,888 $113,362
Bordentown 11,566 $104,053
Fieldsboro 624 $82,500
Trenton 84,632 $41,090
Upper Freehold 6,890 $130,449
West Windsor 27,872 $183,512

Source: American Community Survey, U.S. Census Bureau, 2015, www.census.gov/programs-surveys/acs/.

Hamilton Public Libraries

Hamilton Township Free Public Library
Hamilton, New Jersey
(609) 581-4060
Library Web Site

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Hamilton High Schools

Title I eligible, not participating.
Serves 1,367 students.
Student/teacher ratio: 15.1

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Additional Resources
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