Winthrop Flag

Winthrop

County:
Buchanan County
County Seat:
No
Area (mi²):
0.791
State:
Iowa

Winthrop is a city located in Buchanan County, Iowa. Winthrop has a 2026 population of 814. Winthrop is currently declining at a rate of -0.73% annually and its population has decreased by -1.33% since the most recent census, which recorded a population of 825 in 2020.

814
Total Population
1,029
Density (mi²)
-6 -0.73%
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)