Humboldt County
Also known as Humboldt County, Iowa, Humboldt County, IA
county in Iowa, United States
Key facts
- Country
- United States
- State
- Iowa
- Founded
- January 15, 1851 (created), February 26, 1857 (re-created)
- Named after
- Alexander von Humboldt
- Seat
- Dakota City
- Largest city
- Humboldt
- Total
- 435.674 sq mi (1,128.39 km )
- Land
- 434.372 sq mi (1,125.02 km )
- Water
- 1.302 sq mi (3.37 km ) 0.3%
- Estimate 2025
- 9,409
- Density
- 22.09/sq mi (8.531/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
~14 min read
Article
Humboldt County is a county in the U.S. state of Iowa. As of the 2020 census, the population was 9,597, and was estimated to be 9,409 in 2025. The county seat is Dakota City and the largest city is Humboldt. The county was created on January 15, 1851, re-created on February 26, 1857, and named in honor of Alexander von Humboldt.
History