Nashua is a city in Hillsborough County, New Hampshire, United States. As of the 2010 census, Nashua had a total population of 86,494, making it the second-largest city in the state (and in the three northern New England states) after Manchester. As of 2016 the population had risen to an estimated 87,882. Built around the now-departed textile industry, in recent decades it has been swept up in southern New Hampshire’s economic expansion as part of the Boston region. Nashua was twice named „Best Place to Live in America“ in annual surveys by Money magazine.
Nashua is located in southeastern Hillsborough County at (42.751038, -71.480817). It is bordered to the south by Middlesex County, Massachusetts. The eastern boundary of Nashua is formed by the Merrimack River, and the city is drained by the Nashua River and Salmon Brook, tributaries of the Merrimack. The Nashua River roughly bisects the city. Pennichuck Brook forms the northern boundary of the city. The highest point in Nashua is Gilboa Hill in the southern part of the city, at 426 feet (130 m) above sea level.
Nashua has a four-season humid continental climate , with long, cold, snowy winters, and very warm and somewhat humid summers; spring and autumn in between are relatively brief transitions.
Nashua has three main commercial districts. Centered on Main Street near the geographic center of the city, Downtown Nashua is the oldest of the commercial districts, featuring commercial, entertainment, and dining venues, near historic commercial buildings and homes as well. Recent plans have incorporated the Nashua River into the design of a pedestrian-friendly walkway. The downtown Nashua Riverwalk is a large, public/private venture funded through the use of tax increment financing.