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About Humboldt County

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.

Description adapted from Wikipedia, CC BY-SA 4.0.

Humboldt County, Iowa
Humboldt County Courthouse (Dakota City, IA) — Public domain, Brandonrush · source

Humboldt County at a glance

County seat
Dakota City
Population
9,597 (2020)
Land area
436 sq mi
Founded
1857

Largest communities in Humboldt County

  1. Humboldt 4,792
  2. Dakota City county seat 759
  3. Humboldt Township 521
  4. Delana Township 484
  5. Weaver Township 414

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Official channels

Humboldt County election resources

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Neighboring counties

Part of Iowa Voter Check

This is the Humboldt County page of Iowa Voter Check, a project of True the Vote, pointing Iowa voters at the official tools that already exist — and at Scan Check Protect to verify your registration.

Where anything here differs from what Humboldt County or the Iowa Secretary of State publishes, they are right and this page is not.