Jefferson County Seal
Jefferson County,
Missouri
Est. 1818
Photo of Rockford Beach Photo of Admin Building Photo of Annex Building Photo of Court House Photo of Soccer Game Photo of Detention Center Photo of Justice Center Photo of Law Enforcement Memorial Photo of Child Fishing Photo of Sheriff Dept Jail Photo of Sheriff East Zone building Photo of Sheriff North Zone building

Welcome to
Jefferson County's website

Welcome to Jeffcomo.org, your online connection to Jefferson County, Missouri government. Here you will find information on all Jefferson County Government departments and services as well as Jefferson County elected officials. We continue to work hard to provide you with easy access to information about County government. This website is just a part of Jefferson County’s commitment to providing and maintaining open and transparent County government. Please check back periodically as we will have ongoing improvements. Thank you for visiting Jefferson County online.

 

 

Jefferson County Normal Hours of Operation 
Monday - Friday 8:00 a.m. - 5:00 p.m.

County Information Line and Department Directory: 636-797-5555  

          
                

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August 4, 2020 Primary Candidate Filings
A list of candidates that have filed in the office of the Jefferson County Clerk for the August 4, 2020 Primary Election.
April 2020 General Municipal County Wide Sample
April 2020 General Municipal County Wide Sample
March Presidential Preference Primary
Listing of all candidates for the Presidential Preference Primary March 10, 2020 Election.
Upcoming Events
3/2/20206:30 pm Council Work Session
 Admin Center, Assembly Room, 729 Maple Street, Hillsboro, MO
3/12/20204:00 P.M. Board of Zoning Adjustment Meeting
 4:00 P.M. Board of Zoning Adjustment Meeting
3/12/20206:30 p.m. Planning & Zoning Meeting
 6:30 p.m. Planning & Zoning Meeting