Court directory # Missouri Third Judicial Circuit Court Verified court information for Missouri Third Judicial Circuit Court. ## Court information ### Mercer County Courthouse Physical address 802 E. Main Street, Princeton, MO 64673 [Official court website](https://www.courts.mo.gov/) Checked Sep 30, 2026 ### Grundy County Courthouse Physical address 700 Main Street, Trenton, MO 64683 Phone (660) 359-4040 [Official court website](https://www.courts.mo.gov/) Checked Sep 30, 2026 ### Putnam County Courthouse Physical address 601 W. Main Street, Room 204, Unionville, MO 63565 Phone (660) 947-2117 [Official court website](https://www.courts.mo.gov/) Checked Sep 30, 2026 ### Harrison County Courthouse Physical address 1500 Main Street, Bethany, MO 64424 Phone (660) 425-6424 [Official court website](https://www.courts.mo.gov/) Checked Sep 30, 2026 Aliases: 3rd Judicial Circuit Court · Missouri Third Judicial Circuit Court · MO 3rd Judicial Circuit Court · MO Third Judicial Circuit Court · Third Judicial Circuit Court · Missouri 3rd Judicial Cir. Ct. · MO 3rd Judicial Cir. Ct. ## Locations Physical address 601 W. Main, Unionville, MO 63565 [Official location/contact source](https://www.courts.mo.gov/page.jsp?id=321) · Checked August 15, 2026 ## Assigned Judges - [Alex T. Van Zandt Judge](/kyj/judge/alex-t-van-zandt-judge-missouri-3rd-judicial-circuit-court-mo) - [Anthony W. Horvath Judge](/kyj/judge/anthony-w-horvath-judge-missouri-3rd-judicial-circuit-court-mo) - [Carrie Lamm-Clark Judge](/kyj/judge/carrie-lamm-clark-judge-missouri-3rd-judicial-circuit-court-mo) - [David L. Bolander Judge](/kyj/judge/david-l-bolander-judge-missouri-3rd-judicial-circuit-court-mo) - [Emily M. Bauman Judge](/kyj/judge/emily-m-bauman-judge-missouri-3rd-judicial-circuit-court-mo) - [Jay Hemenway Judge](/kyj/judge/jay-hemenway-judge-missouri-3rd-judicial-circuit-court-mo) - [Kate Schaefer Judge](/kyj/judge/kate-schaefer-judge-missouri-3rd-judicial-circuit-court-mo) - [Matthew M. Krohn Judge](/kyj/judge/matthew-m-krohn-judge-missouri-3rd-judicial-circuit-court-mo) - [Terry E. White Judge](/kyj/judge/terry-e-white-judge-missouri-3rd-judicial-circuit-court-mo) ## Court details jurisdiction Grundy County; Harrison County; Mercer County; Putnam County court type Missouri Circuit Court locations label: Grundy County Courthouse; address: 700 Main Street, Trenton, MO 64683; phone: 660-359-4040; label: Harrison County Courthouse; address: 1500 Main Street, Bethany, MO 64424; phone: 660-425-6424; label: Mercer County Courthouse; address: 802 E. Main Street, Princeton, MO 64673; label: Putnam County Courthouse; address: 601 W. Main Street, Room 204, Unionville, MO 63565; phone: 660-947-2117 Court type Missouri Circuit Court [Source: grundycountymo.com ↗](https://grundycountymo.com/wordpress/circuit-division/) [Source: www.sos.mo.gov ↗](https://www.sos.mo.gov/bluebook)