Groveville, New Jersey

Groveville is an unincorporated community and census-designated place (CDP) located within Hamilton Township, in Mercer County, in the U.S. state of New Jersey. As of the 2020 census, the CDP's population was 3,106. Before the 2010 Census, the area was part of the Yardville-Groveville CDP.

Geography
Groveville is in southern Mercer County, bordered to the south by Crosswicks Creek, which forms the Burlington County line. The hamlet of Groveville is in the western part of the CDP, centered on the junction of Main Street and Church Street, while North Crosswicks is in the southeastern part of the CDP, at the intersection of South Broad Street and a separate Church Street. Groveville is bordered to the north by the community of Yardville. The New Jersey Turnpike (Interstate 95) crosses the eastern part of the CDP between Exits 7 and 7A, with no direct access.

According to the U.S. Census Bureau, the CDP had a total area of 2.160 square miles (5.593 km2), including 2.123 square miles (5.498 km2) of land and 0.037 square miles (0.096 km2) of water (1.71%). The southern part of the CDP is drained by Crosswicks Creek, while Doctors Creek, a tributary of Crosswicks, flows through the northern part. The CDP is part of the Delaware River watershed.

2010 census
The 2010 United States census counted 2,945 people, 1,046 households, and 810 families in the CDP. The population density was 1387.4 /sqmi. There were 1,093 housing units at an average density of 514.9 /sqmi. The racial makeup was 84.58% (2,491) White, 8.59% (253) Black or African American, 0.10% (3) Native American, 3.29% (97) Asian, 0.00% (0) Pacific Islander, 1.73% (51) from other races, and 1.70% (50) from two or more races. Hispanic or Latino of any race were 7.13% (210) of the population.

Of the 1,046 households, 38.6% had children under the age of 18; 59.3% were married couples living together; 12.9% had a female householder with no husband present and 22.6% were non-families. Of all households, 18.2% were made up of individuals and 6.1% had someone living alone who was 65 years of age or older. The average household size was 2.81 and the average family size was 3.21.

25.1% of the population were under the age of 18, 9.7% from 18 to 24, 24.1% from 25 to 44, 30.7% from 45 to 64, and 10.4% who were 65 years of age or older. The median age was 39.6 years. For every 100 females, the population had 94.6 males. For every 100 females ages 18 and older there were 92.7 males.