Hainesburg, New Jersey
Hainesburg is an unincorporated community and census-designated place (CDP) located within Knowlton Township in Warren County, in the U.S. state of New Jersey. While the community has existed for over a century, the CDP was designated as part of the 2010 United States Census. As of the 2010 Census, the CDP's population was 91. History
Hainesburg is located next to Paulins Kill, and a stone grist mill was erected on that waterway prior to the American Revolution. The mill was destroyed by fire in 1908. A tannery was built in 1840 by Jacob Hibler. Land was acquired at Hainesburg in 1843 by the Beck brothers, who divided it into lots. Originally known as "Sodom", the town's first post office was called "Hainesburg" in honor of John Haines, who made a significant donation to a school located there. A saw mill was built by George Adams in 1881, and a station on the New York, Susquehanna and Western Railway was located in Hainesburg. Geography
According to the United States Census Bureau, the CDP had a total area of 0.156 square miles (0.405 km2), including 0.155 square miles (0.402 km2) of land and 0.001 square miles (0.003 km2) of water (0.84%). Demographics

2010 census
The 2010 United States census counted 91 people, 29 households, and 23 families in the CDP. The population density was . There were 36 housing units at an average density of . The racial makeup was 96.70% (88) White, 0.00% (0) Black or African American, 2.20% (2) Native American, 0.00% (0) Asian, 0.00% (0) Pacific Islander, 1.10% (1) from other races, and 0.00% (0) from two or more races. Hispanic or Latino of any race were 10.99% (10) of the population. Of the 29 households, 41.4% had children under the age of 18; 62.1% were married couples living together; 6.9% had a female householder with no husband present and 20.7% were non-families. Of all households, 17.2% were made up of individuals and 3.4% had someone living alone who was 65 years of age or older. The average household size was 3.14 and the average family size was 3.57. 29.7% of the population were under the age of 18, 2.2% from 18 to 24, 38.5% from 25 to 44, 23.1% from 45 to 64, and 6.6% who were 65 years of age or older. The median age was 36.3 years. For every 100 females, the population had 111.6 males. For every 100 females ages 18 and older there were 137.0 males. 2000 census
As of the 2000 United States Census, the population for ZIP Code Tabulation Area 07833 was 159. References

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Census-designated places in Warren County, New Jersey
Census-designated places in New Jersey
Knowlton Township, New Jersey