Town Hall Address 213 S Summit Dr. Holts Summit, MO 65043 United States- Callaway County Website https://www.holtssummit.org Town Clerk 573-896-8420 213 S Summit Dr. Holts Summit, MO 65043 United States Sewer 573-896-8424 213 S Summit Dr. Holts Summit, MO 65043 United States Town Hall Hours Monday - Thursday: 8:00 AM - 5:00 PM and Friday: 8:00 AM - 4:00 PM County Callaway