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is a borough in Bergen County, New Jersey, United States. As of the United States 2000 Census, the borough population was 5,917.
Carlstadt was originally formed as a village by an Act of the New Jersey Legislature on March 12, 1860, within Lodi Township. It was named after Dr. Carl Klein, the leader of a group of early German settlers. The Borough of Carlstadt was incorporated on June 27, 1894, formally set off from Bergen Township, at the height of the
According to the United States Census Bureau, the borough has a total area of 4.2 square miles (11.0 km
Carlstadt is bordered on the south by East Rutherford in Bergen County, Secaucus and North Bergen in Hudson County, on the north by Wood-Ridge and Moonachie (Bergen) to the east by Ridgefield and South Hackensack (Bergen), and to the northwest by Wallington (Bergen). It is approximately 8 miles northwest of New York City and 95 miles northeast of Philadelphia.