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About Delaware County

Delaware County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 17,488. The county seat is Manchester. The county takes its name after the U.S. state of Delaware.

Description adapted from Wikipedia, CC BY-SA 4.0.

Delaware County, Iowa
Delaware County Courthouse — CC BY-SA 3.0, Kevin Schuchmann · source

Delaware County at a glance

County seat
Manchester
Population
17,488 (2020)
Land area
579 sq mi
Founded
1837

Largest communities in Delaware County

  1. Delaware Township 6,187
  2. Manchester county seat 5,065
  3. Oneida Township 1,403
  4. Milo Township 1,310
  5. South Fork Township 1,031

Start here

Confirm you're ready to vote in Delaware County

  1. Run a guided check

    Scan Check Protect walks you through verifying your Iowa registration and flags anything that needs fixing — free.

    Start at Scan Check Protect →

  2. Ask Delaware County directly

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

    Delaware County election office →

Official channels

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