Bloomfield is a township in Essex County , New Jersey , United States. As of the 2010 United States Census , the township population was 47,315. It surrounds the Bloomfield Green Historic District .
History Bloomfield was incorporated as a township from portions of Newark Township by an Act of the New Jersey Legislature on March 23, 1812. The new township took its name from the Presbyterian parish, which had been named for Governor of New Jersey Joseph Bloomfield . At the time it was incorporated, the township covered 20.52 square miles ) and included several villages which left Bloomfield during the course of the nineteenth century. Their names and dates of separation are: Belleville – April 8, 1839 Montclair – April 15, 1868 Woodside – March 24, 1869 Glen Ridge – February 13, 1895. Bloomfield was incorporated as a town on February 26, 1900. In July 1981, residents voted to adopt the township form of government. Presbyterian Church, for which the town was named The Thomas Cadmus House, originally built in 1763 by Revolutionary War Lt. Col. Thomas Cadmus, and was reconstructed in 1915 using the stones and foundation that had been used to build the original home.