Sullivan County is a county in the U.S. state of New Hampshire. As of the 2020 census, the population was 43,063, making it the second-least populous county in New Hampshire. Its county seat is Newport.
Sullivan County is included in the Claremont–Lebanon, NH-VT Micropolitan Statistical Area.
| Name: | Sullivan County |
|---|---|
| FIPS code: | 33-019 |
| State: | New Hampshire |
| Founded: | 1827 |
| Named for: | John Sullivan |
| Seat: | Newport |
| Largest city: | Claremont |
| Total Area: | 552.1 sq mi (1,430 km²) |
| Land Area: | 537.5 sq mi (1,392 km²) |
| Total Population: | 43,063 |
| Population Density: | 80.1/sq mi (30.9/km²) |
| Time zone: | UTC−5 (Eastern) |
| Summer Time Zone (DST): | UTC−4 (EDT) |
| Website: | www.sullivancountynh.gov |
Sullivan County location map. Where is Sullivan County?
History
Sullivan County was organized at Newport in 1827 from the northern portion of Cheshire County. It is named for John Sullivan (1740–1795), the Revolutionary War hero and a former governor.
Sullivan County Road Map
Geography
According to the U.S. Census Bureau, the county has a total area of 552 square miles (1,430 km), of which 537 square miles (1,390 km) is land and 15 square miles (39 km) (2.7%) is water. It is the third-smallest county in New Hampshire by area.
Adjacent counties
- Grafton County (north)
- Merrimack County (east)
- Hillsborough County (southeast)
- Cheshire County (south)
- Windham County, Vermont (southwest)
- Windsor County, Vermont (west)
National protected area
- Saint-Gaudens National Historic Site
Sullivan County Topographic Map
Sullivan County Satellite Map
Sullivan County Outline Map
