Buchanan County
Also known as Buchanan County, Iowa, Buchanan County, IA
county in Iowa, United States
Key facts
- Country
- United States
- State
- Iowa
- Named after
- James Buchanan
- Seat
- Independence
- Largest city
- Independence
- Total
- 573 sq mi (1,480 km )
- Land
- 571 sq mi (1,480 km )
- Water
- 2.1 sq mi (5.4 km ) 0.4%
- Estimate 2025
- 20,883
- Density
- 36.6/sq mi (14.1/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( CDT )
- Congressional district
Article
Wapsipinicon River Bridge
Buchanan County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 20,565. Its county seat is Independence. The county was created in 1837 and was named in honor of Senator James Buchanan, the 15th President of the United States.