Trenton is the capital city of the State of New Jersey and the county seat of Mercer County. The city is officially considered to be within the Greater New York City Combined Statistical Area. As of the 2010 United States Census, Trenton had a population of 84,913, making it the state's 10th-largest municipality. The Census Bureau estimated that the city's population was 84,899 in 2011. Trenton dates back at least to June 3, 1719, when mention was made of a constable being appointed for Trenton, while the area was still part of Hunterdon County. Boundaries were recorded for Trenton Township as of March 2, 1720, a courthouse and jail were constructed in Trenton around 1720 and the Freeholders of Hunterdon County met annually in Trenton. Trenton became New Jersey's capital as of November 25, 1790, and the City of Trenton was formed within Trenton Township on November 13, 1792. Trenton Township was incorporated as one of New Jersey's initial group of 104 townships by an Act of the New Jersey Legislature on February 21, 1798. Portions of the township were taken on February 22, 1834, to form Ewing Township. On April 10, 1837, Trenton Township was dissolved and became part of Trenton city. A series of annexations took place over a 50-year period, with the city absorbing South Trenton borough, portions of Nottingham Township, both the Borough of Chambersburg Township and Millham Township, as well as Wilbur Borough.