Hillsborough County, New Hampshire

Hillsborough was one of the five original counties identified for the old Province of New Hampshire in 1769, and was named for Wills Hill, 1st Earl of Hillsborough, who was British Secretary of State for the Colonies at the time. The county was formally organized at Amherst on March 19, 1771. In 1823, twelve townships of Hillsborough Country – Andover, Boscawen, Bradford, Dunbarton, Fishersfield (now Newbury), Henniker, Hooksett, Hopkinton, New London, Salisbury, Sutton, and Warner – became part of Merrimack County. The town of Merrimack along the Merrimack River in south-central Hillsborough County was not included in the newly formed county to the north. Hillsborough County's administrative functions were moved from Amherst to Milford in 1866, and then to the current seats of Manchester and Nashua in 1869. ==Geography==

According to the United States Census Bureau, the county has a total area of , of which is land and (1.8%) is water. The highest point in Hillsborough county is Pack Monadnock Mountain at . Adjacent counties • Merrimack County (north) • Rockingham County (east) • Essex County, Massachusetts (southeast) • Middlesex County, Massachusetts (south) • Worcester County, Massachusetts (southwest) • Cheshire County (west) • Sullivan County (northwest) National protected area • Wapack National Wildlife Refuge ==Politics and government==

In the 2012 presidential election, Time had listed Hillsborough as one of five critical counties affecting the outcome in the swing state of New Hampshire. Obama ended up winning with a margin of 50%–49%. Despite its more urban nature, Hillsborough County has historically been a more Republican leaning part of the state. But in 2020, Joe Biden and Jeanne Shaheen won Hillsborough County by a wider margin than they won statewide by. Biden also received the highest percentage of the vote for a Democrat since Lyndon Johnson's 1964 landslide, largely driven due to large swings to Democrats in the county's historically Republican suburban communities. In 2024, the county voted for Democratic nominee Kamala Harris, the first time it voted for a Democrat who lost the presidential election since 1968. County Commission The executive power of Hillsborough County's government is held by three county commissioners, each representing one of the three commissioner districts within the county. In addition to the county commission, there are five directly elected officials; they include county attorney, register of deeds, county sheriff, register of probate, and county treasurer. County Convention The legislative branch of Hillsborough County, also known as the County Convention or County Delegation, is made up of all of the members of the New Hampshire House of Representatives from the county. As of 2022, there are 123 members from 45 districts. ==Demographics==

2020 census As of the 2020 census, the county had a population of 422,937, and the median age was 40.9 years. 20.0% of residents were under the age of 18 and 16.6% of residents were 65 years of age or older. For every 100 females there were 98.5 males, and for every 100 females age 18 and over there were 96.9 males age 18 and over. The population density was . The racial makeup of the county was 82.8% White, 2.6% Black or African American, 0.2% American Indian and Alaska Native, 3.9% Asian, 0.0% Native Hawaiian and Pacific Islander, 3.5% from some other race, and 6.9% from two or more races. Hispanic or Latino residents of any race comprised 7.9% of the population. 75.6% of residents lived in urban areas, while 24.4% lived in rural areas. There were 167,875 households in the county, of which 28.1% had children under the age of 18 living with them and 23.7% had a female householder with no spouse or partner present. About 26.6% of all households were made up of individuals and 10.3% had someone living alone who was 65 years of age or older. 2011–2015 American Community Survey For the period 2011–2015, 24.8% of the county's population had French ancestry (including 9.9% of the total population with French Canadian ancestry), 20.9% had Irish, 13.1% had English, 10.2% had Italian, and 8.2% had German ancestry. For the same time period, the estimated median annual income for a household in the county was $71,244, and the median income for a family was $85,966. Male full-time workers had a median income of $60,349 versus $44,270 for females. The per capita income for the county was $35,242. About 5.8% of families and 8.8% of the population were below the poverty line, including 11.7% of those under age 18 and 5.9% of those age 65 or over. ==Communities==

Cities • Manchester (county seat) • Nashua (county seat) Towns • Amherst • Antrim • Bedford • Bennington • Brookline • Deering • Francestown • Goffstown • Greenfield • Greenville • Hancock • Hillsborough • Hollis • Hudson • Litchfield • Lyndeborough • Mason • Merrimack • Milford • Mont Vernon • New Boston • New Ipswich • Pelham • Peterborough • Sharon • Temple • Weare • Wilton • Windsor Census-designated places • Amherst • Antrim • Bennington • East Merrimack • Francestown • Goffstown • Greenville • Hancock • Hillsborough • Hudson • Klondike Corner • Milford • New Boston • Peterborough • Pinardville • Wilton Villages • Grasmere • West Peterborough Former towns • Monson ==Education==

School districts include: K-12 districts: • Bedford School District • Contoocook Valley School District • Goffstown School District • Hillsboro-Deering Cooperative School District • Hudson School District • Litchfield School District • Manchester School District • Mascenic Regional School District • Merrimack School District • Milford School District • Nashua School District • Pelham School District • Wilton-Lyndeborough School District • Windsor School District Secondary districts: • Hollis-Brookline Cooperative School District • Souhegan Cooperative School District • John Stark Regional School District Elementary districts: • Amherst School District • Brookline School District • Hollis School District • Mason School District • Mont Vernon School District • New Boston School District • Weare School District Previously Bedford sent high school students to the Manchester School District. ==See also==