Hamburg (N.J.)

Hamburg is a borough in Sussex County, in the U.S. state of New Jersey. As of the 2020 United States census, the borough's population was 3,266, a decrease of 11 (−0.3%) from the 2010 census count of 3,277, which in turn reflected an increase of 172 (+5.5%) from the 3,105 counted in the 2000 census. The United States Census Bureau's Population Estimates Program calculated that the population of Hamburg increased by 65 (+2.0%) to 3,331 in 2023. In 1753, when Sussex County was formed from portions of Morris County, the area of present-day Hamburg was part of New Town; on February 25, 1762, it became part of the newly established Hardyston Township. On April 8, 1793, when Vernon Township was formed from Hardyston, Hamburg was included within the boundaries of Vernon. In 1852, the boundary line was changed so that Hamburg was again in Hardyston Township. Hamburg was incorporated as a borough on March 19, 1920, from portions of Hardyston Township, based on the results of a referendum held on April 24, 1920. The borough was named after Hamburg, Germany.