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Cass County Justice Center

Filing information for Cass County Justice Center in Harrisonville, MO. Part of the Cass County small claims court system.

E-Filing

Not available

Max Claim

$5,000

Courthouse Details

Cass County Justice Center

2501 W. Mechanic St.

Harrisonville, MO 64701

Mailing Address

2501 W. Mechanic St.

Harrisonville, MO 64701

Phone: 816-380-8227Fax: 816-380-8225Email: Cass.Civil@courts.mo.gov

Hours: Monday - Friday 8:00 AM to 4:30 PM

Area Served

All of Cass County

How to File at Cass County Justice Center

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.