Where to vote in Waterloo, Iowa on November 3, 2026
- Election DayTue, Nov 3Tuesday, November 3
- Polls open7 a.m. – 8 p.m.Local time
- Election officeBlack Hawk County319-833-3007
Find your polling place Election office Voting dates
Waterloo is in Black Hawk County. Waterloo has about 66,919 people, by the U.S. Census Bureau's 2025 estimate, which also gives its county lines.
Black Hawk County auditor's office
Black Hawk County Auditor
Office: 316 E. 5th Street, Waterloo, IA 50703
Phone: 319-833-3007
Regular office hours: Monday to Friday, 8 a.m. to 4:30 p.m.
Website: blackhawkcounty.iowa.gov
Check your registration and find your polling place at the Iowa Secretary of State voter page, the state's voter site.
Iowa voting dates for Waterloo voters
| Date | What |
|---|---|
| Wed, Oct 14 Started | Early voting opens source |
| Mon, Oct 19, 5 p.m. | Pre-register to vote source |
| Mon, Oct 19, 5 p.m. | Request an absentee ballot by mail source |
| Mon, Nov 2 | Early voting ends source |
| Tue, Nov 3, 8 p.m. | Election Day: polls open 7 a.m. to 8 p.m. source |
| Tue, Nov 3, 8 p.m. | Register and vote on Election Day source |
| Tue, Nov 3, 8 p.m. | Return your absentee ballot source |
Waterloo voting questions
Where do I vote in Waterloo on Election Day?
At your assigned polling place, or a vote center where Black Hawk County uses them. Polls are open 7 a.m. to 8 p.m. local time. Enter your address on the Iowa page to find yours.
What is the phone number of the election office for Waterloo?
319-833-3007, the Black Hawk County Auditor, 316 E. 5th Street, Waterloo, IA 50703.
Which county runs elections in Waterloo?
Black Hawk County. Waterloo voters register and vote with Black Hawk County.
More for Waterloo voters
- Iowa voting deadlines 2026: registration, mail ballots, early voting and Election Day.
- Black Hawk County election office: address and phone.
- Who is on the Iowa ballot, race by race.
- What's on my ballot and where do I vote, from your street address.
- Voting in every major U.S. city.
Other big cities in Iowa: Des Moines, Cedar Rapids, Davenport.
Office details are from the Iowa Secretary of State, County Auditor List (checked October 14, 2026). Dates are Iowa's, each linked to its source. Call the office before you go; city population and county lines are from the U.S. Census Bureau.