County Resources
Jefferson County Administration Office
Jefferson County, Missouri
729 Maple Street, Hillsboro, MO 63050
636-797-5400
Office of: County Executive - Dennis Gannon / County Clerk - Ken Waller
https://www.jeffcomo.org/
Jefferson County Major Cities
City of Arnold
2101 Jeffco Blvd., Arnold, MO 63010
636-296-2100
Mayor - Ron Counts / City Clerk – Tammi Casey
http://www.arnoldmo.org/
City of Crystal City
130 Mississippi Avenue, Crystal City, MO 63019
636-937-4614
Mayor - Thomas V. Schilly / City Clerk – Shelly Steger
http://www.crystalcitymo.org/
City of De Soto
17 Boyd Street, De Soto, MO 63020
636-586-3326
Mayor – Rick Lane / City Clerk – Crystal Barton
https://desotomo.com/
City of Festus
711 West Main Street, Festus, MO 63028
636-937-4694
Mayor – Sam Richards / City Clerk – Kerry Patek
http://cityoffestus.org/
City of Herclaneum
#1 Parkwood Court, Herculaneum, MO 63048
636-475-4447
Mayor - Bill Haggard / City Clerk – Jim Kasten
http://www.cityofherculaneum.org
City of Hillsboro
101 Main Street, Hillsboro, MO 63050
636-797-3334
Mayor – Buddy Russell / City Clerk – Jesse Wallis
http://www.hillsboromo.org/
City of Kimmswick
P.O. Box 27, Kimmswick, MO 63053
636-464-7407
Mayor – Philip D. Stang / City Clerk – Tammy R. Benack
http://cityofkimmswick.org/
City of Pevely
401 Main Street, Pevely, MO 63070
636-475-4452
Mayor – Stephanie Haas / City Clerk – Ashton Lowery
http://www.cityofpevely.net/