Sioux County, North Dakota auditor's office: address and phone for 2026
The North Dakota Secretary of State lists the Sioux County Auditor at PO Box L, Fort Yates, ND 58538, phone 701-854-3481. North Dakota: Early voting may open (county option) Monday, October 19; early voting ends Monday, November 2. Each county decides whether to offer early voting. Ask this office.
Sioux County auditor's office
Check your registration and find your polling place at the Secretary of State's Where to Vote lookup, the state's voter site.
North Dakota voting dates for Sioux County voters
| Date | What |
|---|---|
| Mon, Oct 19, 8:00 AM | Early voting may open (county option) Counties may offer early voting during the 15 days before Election Day. In-person absentee voting at your county auditor's office has been available since Sep 24. source |
| Mon, Nov 2, 5:00 PM | Request an absentee ballot No excuse needed. There is no statutory cutoff, but the ballot must be back by close of polls on Nov 3, so apply early — ballots have been available since Sep 24. Apply through the Secretary of State's site or your county auditor. source |
| Mon, Nov 2, 5:00 PM | Early voting ends Last day for early voting in counties that offer it. source |
| Tue, Nov 3, 7:00 PM | No voter registration — vote with a valid ND ID North Dakota is the only state with no voter registration. Bring a valid North Dakota driver's license, ID card, or tribal ID with your current address. Polls close between 7 and 9 p.m. local time depending on your county. source |
| Tue, Nov 3, 7:00 PM | Return your absentee ballot Must reach your county auditor — by mail, county drop box, or in person — by close of polls on Election Day. Absentee ballots are not accepted at polling places. source |
| Tue, Nov 3, 7:00 PM | Election Day: polls close between 7:00 and 9:00 p.m. Each county sets its hours: polls open by 9:00 a.m. and close no earlier than 7:00 p.m. and no later than 9:00 p.m. Check your location's hours in the Secretary of State's voter portal. source |
Sioux County voting questions
What is the phone number for the Sioux County auditor's office?
701-854-3481, the Auditor (Sioux County's auditor's office on the North Dakota Secretary of State, County Election Officials list).
What is the address of the Sioux County auditor's office?
PO Box L, Fort Yates, ND 58538.
When does early voting start in Sioux County?
Early voting may open (county option) Monday, October 19; early voting ends Monday, November 2, 2026. Counties may offer early voting during the 15 days before Election Day. In-person absentee voting at your county auditor's office has been available since Sep 24.
More for North Dakota voters
- Who is on the North Dakota ballot: every candidate on the state's official list, race by race.
- North Dakota voting deadlines 2026: registration, mail ballots, early voting and Election Day.
- Every North Dakota county's office.
- Early voting dates in every state.
Other North Dakota counties: Adams, Barnes, Benson, Billings, Bottineau, Bowman, Burke, Burleigh, Cass, Cavalier, Dickey, Divide, Dunn, Eddy, Emmons, Foster, Golden Valley, Grand Forks, Grant, Griggs, Hettinger, Kidder, LaMoure, Logan, McHenry, McIntosh, McKenzie, McLean, Mercer, Morton, Mountrail, Nelson, Oliver, Pembina, Pierce, Ramsey, Ransom, Renville, Richland, Rolette, Sargent, Sheridan, Slope, Stark, Steele, Stutsman, Towner, Traill, Walsh, Ward, Wells, Williams.
Office details are from the North Dakota Secretary of State, County Election Officials (checked October 14, 2026). Dates are North Dakota's, each linked to its source. Call the office before you go.