Portsmouth Flag

Portsmouth

County:
Shelby County
County Seat:
No
Area (mi²):
0.307
State:
Iowa

Portsmouth is a city located in Shelby County, Iowa. Portsmouth has a 2026 population of 187. Portsmouth is currently declining at a rate of -1.06% annually but its population has increased by 0.54% since the most recent census, which recorded a population of 186 in 2020.

187
Total Population
609
Density (mi²)
-2 -1.06%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)