Stewartsville, New Jersey

Stewartsville is an unincorporated community and census-designated place (CDP) located within Greenwich Township in Warren County, in the U.S. state of New Jersey, that was created as part of the 2010 United States Census. As of the 2010 Census, the CDP's population was 349.

The area is served as United States Postal Service ZIP Code 08886.

The community of Stewartsville was named after Thomas Stewart, a secretary to George Washington, who purchased property in the area in 1793.

Geography
According to the United States Census Bureau, the CDP had a total area of 0.129 square miles (0.333 km2), all of which was land.

Census 2010
The 2010 United States census counted 349 people, 134 households, and 96 families in the CDP. The population density was 2714.4 /sqmi. There were 144 housing units at an average density of 1120.0 /sqmi. The racial makeup was 93.98% (328) White, 4.58% (16) Black or African American, 0.00% (0) Native American, 0.57% (2) Asian, 0.00% (0) Pacific Islander, 0.00% (0) from other races, and 0.86% (3) from two or more races. Hispanic or Latino of any race were 6.30% (22) of the population.

Of the 134 households, 36.6% had children under the age of 18; 52.2% were married couples living together; 14.2% had a female householder with no husband present and 28.4% were non-families. Of all households, 21.6% were made up of individuals and 8.2% had someone living alone who was 65 years of age or older. The average household size was 2.60 and the average family size was 3.05.

26.4% of the population were under the age of 18, 7.4% from 18 to 24, 26.4% from 25 to 44, 27.8% from 45 to 64, and 12.0% who were 65 years of age or older. The median age was 40.3 years. For every 100 females, the population had 97.2 males. For every 100 females ages 18 and older there were 90.4 males.

Census 2000
As of the 2000 United States Census, the population for ZIP Code Tabulation Area 08886 was 4,854.

Transportation
The area is accessible via exit 4 and exit 3 on Interstate 78.

Stewartsville had a station on the Morris and Essex Railroad, located 80 miles from New York City.

Points of interest
The nearby Kennedy House and Mill, located on Route 173 in Kennedy Mills, was listed on the National Register of Historic Places in 1996.

The town features two churches, the First Lutheran Church and the Stewartsville Presbyterian Church.

Notable people
People who were born in, residents of, or otherwise closely associated with Stewartsville include:
 * Orange Cassidy (born 1984), professional wrestler
 * Justin Gaymon (born 1986), former 400 metre hurdler