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Mercer County Circuit Court

Filing information for Mercer County Circuit Court in Princeton, MO. Part of the Mercer County small claims court system.

E-Filing

Not available

Max Claim

$5,000

Courthouse Details

Mercer County Circuit Court

802 East Main Street

Princeton, MO 64673

Mailing Address

802 East Main Street

Princeton, MO 64673

Phone: (660) 748-4335Fax: (660) 748-4339

Hours: 8:30 AM - 12:00 PM, 1:00 PM - 4:30 PM, Monday-Friday

Filing cutoff: Documents received after 4:00 p.m. will be recorded on the next business day.

Area Served

All of Mercer County

How to File at Mercer 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.