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St. Louis County Circuit Court

Filing information for St. Louis County Circuit Court in Clayton, MO. Part of the St. Louis County small claims court system.

E-Filing

Not available

Max Claim

$5,000

Courthouse Details

St. Louis County Circuit Court

105 South Central Avenue

Clayton, MO 63105

Mailing Address

105 South Central Avenue

Clayton, MO 63105

Phone: (314) 615-2601Fax: (314) 615-8739

Hours: Monday through Friday 8:00 A.M. to 5:00 P.M.

Area Served

All of St. Louis County

How to File at St. Louis County Circuit Court

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 Missouri small claims court guide →

Data verified May 6, 2026.