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Hamilton Square, New Jersey facts for kids

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Hamilton Square, New Jersey
Center of Hamilton Square
Center of Hamilton Square
Location in Mercer County and the state of New Jersey.
Location in Mercer County and the state of New Jersey.
Country  United States
State  New Jersey
County Mercer
Township Hamilton
Named for Alexander Hamilton
 • Total 4.367 sq mi (11.312 km2)
 • Land 4.343 sq mi (11.249 km2)
 • Water 0.024 sq mi (0.063 km2)  0.56%
102 ft (31 m)
 • Total 12,784
 • Density 2,943.4/sq mi (1,136.5/km2)
Time zone UTC-5 (Eastern (EST))
 • Summer (DST) UTC-4 (Eastern (EDT))
ZIP code
08690 - Trenton
FIPS code 3429370
GNIS feature ID 02583998

Hamilton Square is an unincorporated community and census-designated place (CDP) located within Hamilton Township, in Mercer County, New Jersey, United States, that is the site of a historic colonial village. Until the 2000 Census the area was part of the Mercerville-Hamilton Square CDP, which was split into two CDPs as of 2010: Mercerville and Hamilton Square. As of the 2010 United States Census, the CDP's population was 12,784.

Hamilton Square was established in 1692 and was named after Alexander Hamilton in a wave of anti-British feeling at the time of the War of 1812. It previously had been called Nottingham after the British town. As of the 2010 United States Census, the CDP's population was 12,784.


According to the United States Census Bureau, Hamilton Square had a total area of 4.367 square miles (11.312 km2), including 4.343 square miles (11.249 km2) of land and 0.024 square miles (0.063 km2) of water (0.56%).


As of the census of 2010, there were 12,784 people, 4,532 households, and 3,703 families residing in the CDP. The population density was 2,943.4 per square mile (1,136.5/km2). There were 4,618 housing units at an average density of 1,063.3 per square mile (410.5/km2)*. The racial makeup of the CDP was 92.76% (11,858) White, 1.74% (223) Black or African American, 0.08% (10) Native American, 3.57% (457) Asian, 0.02% (3) Pacific Islander, 0.64% (82) from other races, and 1.18% (151) from two or more races. [[Hispanic (U.S. Census)|Hispanic or Latino of any race were 3.81% (487) of the population.

There were 4,532 households out of which 33.0% had children under the age of 18 living with them, 69.7% were married couples living together, 8.7% had a female householder with no husband present, and 18.3% were non-families. 15.9% of all households were made up of individuals, and 8.8% had someone living alone who was 65 years of age or older. The average household size was 2.79 and the average family size was 3.13.

In the CDP, the population was spread out with 22.2% under the age of 18, 7.7% from 18 to 24, 21.5% from 25 to 44, 32.9% from 45 to 64, and 15.6% who were 65 years of age or older. The median age was 44.1 years. For every 100 females there were 93.6 males. For every 100 females ages 18 and old there were 89.6 males.

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