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About Harrison County

Harrison County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 14,582. The county seat is Logan. The county was formed in 1851. It was named for the ninth US President William Henry Harrison. Harrison County is included in the Omaha-Council Bluffs metropolitan area.

Description adapted from Wikipedia, CC BY-SA 4.0.

Harrison County, Iowa
Harrison County IA Courthouse — CC BY-SA 4.0, Scott Romine · source

Harrison County at a glance

County seat
Logan
Population
14,582 (2020)
Land area
701 sq mi
Founded
1851

Largest communities in Harrison County

  1. St. John Township 3,915
  2. Missouri Valley 2,678
  3. Boyer Township 1,989
  4. Jefferson Township 1,850
  5. Woodbine 1,625

Start here

Confirm you're ready to vote in Harrison County

  1. Run a guided check

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  2. Ask Harrison County directly

    Your county election office handles registration, mail ballots, and polling places.

    Harrison County election office →

Official channels

Harrison County election resources

Statewide tools and every Iowa resource in one place: the Iowa page at Scan Check Protect →

Neighboring counties

Part of Iowa Voter Check

This is the Harrison 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 Harrison County or the Iowa Secretary of State publishes, they are right and this page is not.