Dewey County Court House, Timber Lake, South Dakota

Dewey County Court House, Timber Lake, South Dakota The Dewey County Courthouse is located at 710 C Street in Timber Lake, SD.

It is the home to many of the essential offices that provide services to the residents of Dewey County. Contact information for each county office:

Auditor 865-3672
Clerk of Courts 865-3566
County Health Nurse 865-3587
Director of Equalization (Assessor) 865-3573
4-H/Extension 865-3652
Highway Department 865-3531
County Library 865-3541
Register of Deeds 865-3661
Sheriff 865-3330
State's Attorney 865-3528
Treasurer 865-3501
Veteran's Service Office 865-3539

08/04/2026

PLEASE SHARE!!!

ATTENTION DEWEY COUNTY RESIDENTS,

Due to the new scanning process for the South Dakota States 605Drive Motor Vehicle program you will need to come into our offices with ALL required documents.
In the past we would email/call the Cheyenne River Tribal Enrollment Office and have CIBS emailed or faxed to us as needed for customers claiming Tribal Exemption. We did this as a courtesy to help our customers! However, with the new scanning process we do not have time to wait for a fax or an email. All documents must be scanned at the time they are entered into the 605Drive system.
So PLEASE make sure when titling your vehicle and claiming tribal exemption you have a printed CIB or a NON EXPIRED Cheyenne River Tribal ID we can photo copy and scan!

Thank you for your attention to this matter!!
Dewey County Treasurer,
Colleen Meier

Polls are open from 7am - 7pm MT. Call the Auditor's office at 605-865-3672 for any questions.
07/28/2026

Polls are open from 7am - 7pm MT.
Call the Auditor's office at 605-865-3672 for any questions.

06/28/2026

A Tornado Watch is in effect through 11 PM MDT this evening for Corson and Dewey County. Be sure to stay weather aware and have multiple ways to receive warnings! If a tornado warning is issued, move to the basement or interior room of a building to take cover if possible!

06/28/2026

Here is a screen capture of future radar of about 8 pm to 8:20 pm MT! Be Ready to take shelter! In Timber Lake the wind is coming from the East and that is not a good sign. Somewhere the two fronts are going to meet up.

06/15/2026

Dewey County Courthouse will be closed tomorrow, June 16th, 2026 from 1 PM - 5 PM due to work on the water lines. Sorry for any inconvenience this may cause.

06/10/2026

JUNE 16th tentatively, the phone lines will be repaired. Sorry for any inconvenience this may cause. The courthouse will operate at normal hours from Monday thru Friday, 8am-12pm and 1pm-5pm.

06/09/2026

PSA ‼️

Phone lines are down due to construction. The courthouse is open for business.

06/05/2026

PSA‼️

The Dewey County Courthouse will be closed on Monday, June 8th, due to the city water being shut off. We apologize for any inconvenience this may cause.

05/27/2026

All Dewey County phone lines are currently not working. Sorry for any inconvenience.

05/21/2026

Dewey County Treasurers Eagle Butte Satellite Office will be closed Thursday May 21st and Friday May 22nd. We apologize for this inconvenience.
Timber Lake Office will be open normal hours.

Address

710 C Street
Timber Lake, SD
57656

Opening Hours

Monday 8am - 12pm
1pm - 5pm
Tuesday 8am - 12pm
1pm - 5pm
Wednesday 8am - 12pm
1pm - 5pm
Thursday 8am - 12pm
1pm - 5pm
Friday 8am - 12pm
1pm - 5pm

Website

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