Sullivan County is named for John Sullivan, who was the third and fifth governor of New Hampshire.
Surrounding County Courthouses:
N – Grafton County
E – Merrimack County and Hillsborough County
S – Cheshire County
W – Windham County, Vermont and Windsor County, Vermont
Created: July 5, 1827 
County Seat:
Newport 1827 – present
County Courthouse – Newport
Location: 14 Main Street / Sunapee Street
Built: 1872 – 1873
Style: Second Empire
Architect: Edward Dow of Concord
Contractor: Wallace L Dow Company
Description: The building faces west. and is a two story red colored brick structure. The west front has a one story red colored brick portico supported by four brick pillars and with balcony on the second story. The recessed entrance has double doors. A square brick clock tower rises four stories with large arched window on the second story and clock and steep roof at the top. The building has high arched windows. The roof is hipped. The building burned on June 27, 1885 and was rebuilt in 1886 by Hira R Beckwith of Claremont.
Old County Courthouse – Newport
Location: 30 Main Street / Sunapee Street
Built: 1826 – 1827
Style: Federal
Architect: Unknown
Contractor: Unknown
Description: The building faces west. and is a two story red colored brick structure. The building sits on a hill behind the courthouse. The center section projects with first story entrance and pediment at the roof line. Behind, rises a large square white colored wood bell tower with open section and green colored dome at the top. The roof is hipped.
District Courthouse – Newport
Location: 55 Main Street / West Street
Built: U1975 – 1976
Style: Modern
Architect: Unknown
Contractor: Unknown
Description: The building faces east.and is a two story red colored brick and concrete structure. The east front has a central recessed section. The roof line is flat. The building was remodeled in 2003. The contractor was Trumbell-Nelson construction Company, Inc. of Hanover.
District Courthouse – Claremont
Location: 1 Police Court / Broad Street
Built: 1894 – 1896
Style: Renaissance Revival
Architect: H Langford Warren.
Contractor: Unknown
Description: The building faces south.and is a two story red colored brick structure. The south front has five story clock tower which projects from the main building and rises to a clock and green colored dome at the top. The second story windows of the building are arched. The east side has a large rectangular section, The building houses the city offices and the opera and incorporates the old yellow colored brick courthouse constructed in 1929 and located on the northeast side. The buildings front on an enclosed atrium on the north side constructed in 1977 to 1979. The architect was Paul Mirski of Enfield and the contractor was Salla Construction Company of Winooski, Vermont.
County Courthouse – Newport
Photos taken 2014