Ogdensburg is a borough in Sussex County, New Jersey, United States. As of the 2010 United States Census, the borough's population was 2,410 reflecting a decline of 228 (-8.6%) from the 2,638 counted in the 2000 Census, which had in turn declined by 84 (–3.1%) from the 2,722 counted in the 1990 Census.
The borough was formed based on an Act of the New Jersey Legislature on February 26, 1914, from part of Sparta Township, subject to the results of a referendum held on March 31, 1914. Ogdensburg is named after its first settler, Robert Ogden.
New Jersey Monthly magazine ranked Ogdensburg as its 27th best place to live in its 2008 rankings of the "Best Places To Live" in New Jersey.
According to the United States Census Bureau, the borough had a total area of 2.25 square miles (5.82 km2), including 2.20 square miles (5.71 km2) of land and 0.04 square miles (0.11 km2) of water (1.96%).
Unincorporated communities, localities and place names located partially or completely within the borough include Heaters Pond, South Ogdensburg and Sterling Hill.
Ogdensburg borders the Sussex County municipalities of Franklin, Hardyston Township and Sparta Township.
Ogdensburgite, an arsenate mineral, was named after the borough.
The 2010 United States census counted 2,410 people, 864 households, and 681 families in the borough. The population density was 1,055.4 per square mile (407.5/km2). There were 905 housing units at an average density of 396.3 per square mile (153.0/km2). The racial makeup was 95.23% (2,295) White, 0.33% (8) Black or African American, 0.04% (1) Native American, 1.83% (44) Asian, 0.17% (4) Pacific Islander, 1.00% (24) from other races, and 1.41% (34) from two or more races. Hispanic or Latino of any race were 6.27% (151) of the population.
Of the 864 households, 34.3% had children under the age of 18; 63.8% were married couples living together; 10.3% had a female householder with no husband present and 21.2% were non-families. Of all households, 17.6% were made up of individuals and 6.7% 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 3.17.
24.5% of the population were under the age of 18, 7.6% from 18 to 24, 25.8% from 25 to 44, 30.7% from 45 to 64, and 11.4% who were 65 years of age or older. The median age was 40.6 years.