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Sully County Clerk of Courts

Filing information for Sully County Clerk of Courts in Onida, SD. Part of the Sully County small claims court system.

E-Filing

Not available

Max Claim

$12,000

Courthouse Details

Sully County Clerk of Courts

700 Ash Avenue

Onida, SD 57564

Mailing Address

PO Box 188

Onida, SD 57564

Phone: (605) 258-2535Fax: (605) 258-2270

Hours: 8:00 am to 12:00 pm, Monday through Friday

Area Served

Sully County

How to File at Sully County Clerk of Courts

File in person

Bring your completed forms to the courthouse during business hours.

File by mail

Most small claims courts accept filing by mail — check with this court first. Typically you mail your completed forms with the filing fee plus a self-addressed stamped envelope for your returned copies.

Ready to take action?

A demand letter often settles disputes before a case is ever filed — and it only takes a few minutes.

Read the demand letter guide

For statewide rules, see the full South Dakota small claims court guide →

Data verified May 6, 2026.