CivilCriminalFamilyJuvenileProbate
Mercer County Circuit Court (3rd Judicial Circuit)
Address
802 East Main Street, Princeton, 64673
Phone
Mercer County courts
Filing fees, clerk information, and official court links.
Reviewed Jul 30, 2026 · Official sources
Filing fees
Official fee schedule| Filing type | Fee |
|---|---|
| Civil lawsuit | $103.50 |
Fees depend on case type and amount; confirm with the court before filing. At $104, the civil filing fee in Mercer County is about the same as nearby counties (median $104 across 4 nearby counties).
Clerk & court records
Mercer County Circuit Clerk
Courthouses in Mercer County
CivilCriminalSmall ClaimsTrafficEviction
Mercer County Circuit Court, Associate Circuit Division
Address
802 East Main Street, Princeton, 64673
Phone
Need papers served or filed in Mercer County? Nationwide Legal, our partner company, handles process service and court filing here.
Official links
Frequently Asked Questions
How much does it cost to file a civil case in Mercer County?
The civil filing fee in Mercer County, Missouri is $103.50 (Circuit Court civil cost deposit)
Can I e-file court documents in Mercer County?
Yes. E-filing is available through Missouri eFiling System.
Is there a free online case search for Mercer County?
Yes. You can look up cases online at courts.mo.gov.
Where do I file court documents in Mercer County?
Filings go to the Mercer County Circuit Clerk, located at 802 East Main Street, Princeton, MO 64673. You can reach the clerk at (660) 748-4335.