Portsmouth, Rhode Island

Portsmouth, Rhode Island
Town Hall
Location of Portsmouth in Newport County, Rhode Island
Coordinates: 41°36′N 71°15′W / 41.600°N 71.250°W / 41.600; -71.250
CountryUnited States
StateRhode Island
CountyNewport
EstablishedMarch 7, 1638
Government
  Town CouncilKeith E. Hamilton (R), President
Sondra A. Blank (D)
David M. Gleason (R)
Mary A. McDowell (I)
Sharlene M. Patton (R)
Juan Carlos Payero (D)
David G. Reise (R)
  Town ClerkJennifer M. West
Area
  Total
59.3 sq mi (153.6 km2)
  Land23.2 sq mi (60.1 km2)
  Water36.1 sq mi (93.5 km2)
Elevation
203 ft (62 m)
Population
 (2020)
  Total
17,871
  Density770/sq mi (297.4/km2)
Time zoneUTC−5 (Eastern (EST))
  Summer (DST)UTC−4 (EDT)
ZIP Code
02871
Area code401
FIPS code44-57880
GNIS feature ID1220065
Websitewww.portsmouthri.com

Portsmouth is a town in Newport County, Rhode Island, United States. The population was 17,871 at the 2020 U.S. census. Portsmouth is the second-oldest municipality in Rhode Island, after Providence; it was one of the four colonies which merged to form the Colony of Rhode Island and Providence Plantations, the others being Providence, Newport, and Warwick.