Manchester is the most populous city in the U.S. state of New Hampshire and the tenth most populous in New England. As of the 2020 census, it had a population of 115,644. Manchester is, along with the city of Nashua, one of two seats of New Hampshire's most populous county, Hillsborough County. Manchester lies near the northern end of the Northeast megalopolis and straddles the banks of the Merrimack River. It was first named by the merchant and inventor Samuel Blodget(t), eponym of Samuel Blodget Park and Blodget Street in the city's North End. His vision was to create a great industrial center similar to that of the original Manchester in England, which was the world's first industrialized city. During the Industrial Revolution, Manchester was a major industrial and economic hub for New England, with the Amoskeag Manufacturing Company being the largest cotton textile plant in the world. After World War II, many textile manufacturing jobs left Manchester, but new industries and companies were introduced to the city, such as DEKA.