Jefferson County, MO elected officials: county commissioners, sheriff, school board and cities

Who holds every elected county, school board, city and special-district office in Jefferson County: 17 seats on 10 elected bodies.

County Commission

Jefferson County Council

OfficeWho holds it now
County Council, District 1Brian Haskins Republican source
County Council, District 2Billy Crow Republican source
County Council, District 3Lori Aronns Republican source
County Council, District 4Charles Groeteke Republican source
County Council, District 5Scott Seek Republican source
County Council, District 6Tim Brown Republican source
County Council, District 7Bob Tullock Republican source
County ExecutiveDennis Gannon Republican source

County officers

OfficeWho holds it now
AssessorBob Boyer Republican source
Circuit ClerkMichael Reuter Republican source
Collector of RevenueMichelle Worth Republican source
County ClerkJeannie Goff Republican source
Prosecuting AttorneyTrisha C. Stefanski Republican source
Public AdministratorTracey Perry Republican source
Recorder of DeedsDebbie Dunnegan Waters Republican source
SheriffDave Marshak Republican source
TreasurerPaula Wagner Republican source

How many local governments Jefferson County has

The Census Bureau's 2022 Census of Governments counts 75 local governments in Jefferson County. This page lists the ones whose offices are elected.

Kind of governmentCensus count (2022)Listed on this page
County government11
Cities, towns, villages and townships150
School districts (school boards)120
Special districts (elected boards)470

Census Bureau, 2022 Census of Governments: Government Units Listing (census.gov).

About these counts

The Census Bureau counts every independent local government once, in the county it assigns it to: the one it mostly serves or where it's based. A city or district that crosses county lines is counted in only one county, so it may be listed on this page but counted elsewhere, or the other way around. Many special districts, such as housing authorities, have appointed boards, and some places have more than one elected body, so the two columns measure different things. School systems run by a county, city or the state aren't counted as separate governments, though their boards may be listed here; in some states the Bureau counts community or state colleges as school districts. The counts are as of 2022.

Who lives in Jefferson County

229,458people
40.3median ageU.S.: 38.9
$82,851 household incomeU.S.: $80,734
9%below the U.S.: 12.5%
24.7%of adults 25+ with a bachelor's degreeU.S.: 35.7%
$237,200median home valueU.S.: $332,700
3.2%unemployed (of the labor force)U.S.: 5.2%
2.3%born outside the U.S.U.S.: 14.1%
7.3%of adults are veteransU.S.: 6.2%
6.6%U.S.: 8.4%
39.4%of renting households pay of income on rentU.S.: 51.1%
20.8%of homeowners with a mortgage pay of income on housing costsU.S.: 28.1%

Race and Hispanic origin: Hispanic or Latino 2.6% · White 88.5% · Black 1% · Asian 1% · Other or more than one race 6.9% (Hispanic or Latino people can be of any race; the other groups are non-Hispanic.)

Census Bureau, 2020–2024 5-year estimates (data.census.gov).

About these figures

The American Community Survey asks about 3.5 million households a year about who lives there, their work, income, schooling and housing. The 5-year estimates pool 2020–2024 answers so that every county and district has enough of them. They're estimates with a (larger for smaller places), and they're different from the once-a-decade census count. "Median" means half are above and half below. Household income is before taxes and includes everyone in the household. The unemployment share here is the survey's five-year average, so it differs from the monthly rate in the BLS jobs report. Race and Hispanic origin are as people describe themselves.

Health insurance means any coverage, private or public (such as Medicaid or Medicare), when people answered; the share is of everyone except people on active military duty and people living in institutions such as prisons and nursing homes. The housing shares are of renting households, and of homeowners with a mortgage, for whom the Census Bureau can compute them (households with no income, or renters who pay no cash rent, are left out). Rent here is gross rent, rent plus utilities; owner costs include the mortgage, property taxes, insurance, utilities and fees.

Jobs in Jefferson County

3.0%September 2026, preliminary. A year earlier: 3.2%. Missouri: 3.3%.
3,810people unemployedSeptember 2026, preliminary.
121,256people employedSeptember 2026, preliminary. Counted where they live, not where they work.
125,066in the September 2026, preliminary.
Unemployment rate, yearly average, Jefferson County 0.0%1.6%3.2%4.8%6.4% 20162018202020222024

Yearly average unemployment rate, 2016–2025.

Every month, last two years
MonthRateUnemployedEmployedLabor force
September 2026 (preliminary)3.0%3,810121,256125,066
August 20263.6%4,454120,943125,397
July 20263.5%4,499122,307126,806
June 20263.4%4,228121,427125,655
May 20263.2%3,957120,792124,749
April 20263.3%4,042120,283124,325
March 20263.9%4,864119,009123,873
February 20264.1%5,036118,318123,354
January 20264.1%5,048118,243123,291
December 20253.0%3,748120,774124,522
November 20253.0%3,797121,024124,821
October 2025not collected (2025 federal shutdown)
September 20253.2%4,029120,297124,326
August 20253.8%4,830120,643125,473
July 20254.0%5,131121,710126,841
June 20253.9%4,905121,095126,000
May 20253.7%4,626120,422125,048
April 20253.4%4,273120,618124,891
March 20254.1%5,033118,935123,968
February 20254.3%5,364118,450123,814
January 20254.1%5,004118,508123,512
December 20243.2%3,916119,612123,528
November 20243.1%3,780120,116123,896
October 20243.0%3,734120,784124,518
Yearly averages
YearRateUnemployedEmployedLabor force
2025 (11 months)3.7%4,613120,225124,838
20243.4%4,183120,136124,319
20232.8%3,494119,761123,255
20222.5%2,947117,293120,240
20213.8%4,491113,616118,107
20206.1%7,143109,834116,977
20193.0%3,607115,541119,148
20183.1%3,652113,939117,591
20173.6%4,191113,184117,375
20164.3%5,052113,248118,300

Bureau of Labor Statistics, Local Area Unemployment Statistics, : BLS publishes county figures only that way, so they rise and fall with the seasons; compare a month with the same month a year earlier rather than with the month before. Missouri's figure above is on the same basis; seasonally adjusted, as in BLS's monthly state release, it was 3.6% in September 2026. The latest month is preliminary and is revised the next month, and BLS revises earlier years each spring. People are counted where they live. October 2025 wasn't collected during the 2025 federal government shutdown, so 2025's yearly average covers 11 months.

Crime reported in Jefferson County

248.2 per 100,0002024. Missouri: 467.0.
945.0 per 100,0002024. Missouri: 1,974.1.
5murders2024, 616 violent crimes in all.

2024 is the latest year with complete reporting here: at least one of the county's police agencies didn't send the FBI a full year of figures since, so later totals would be undercounts.

Earlier years
YearViolentRatePropertyRate
2024616248.22,345945.0
2023677276.82,4761,012.2
2022645266.92,9581,224.0
2017528223.24,2151,781.8
2016378160.04,1691,764.7
By police agency (11)
AgencyYearViolentPropertyPeople served
Jefferson County Sheriff's Office20253871,061168,412
Arnold Police Department20251516821,068
Festus Police Department20251912613,994
Eureka Police Department2025149513,682
De Soto Police Department2025372286,517
Pevely Police Department202519516,118
Herculaneum Police Department20259695,485
Crystal City Police Department20256214,695
Hillsboro Police Department202517323,489
Byrnes Mill Police Department20255143,192
Kimmswick Police Department202422135

Crimes to the county's city and county police agencies (FBI Uniform Crime Reporting, Return A), per 100,000 people they serve. Years with incomplete reporting are left out. Crime in Missouri · the U.S.

Police staffing

1.42 per 1,000 residents2019, 11 agencies serving 235,603 people.
335sworn officers2019, full-time, as of October 31.
112civilian staff2019, full-time.

2019 is the latest year every agency here sent the FBI its staff count.

Agencies counted (11), 2019
AgencyOfficersCiviliansPeople served
Jefferson County Sheriff's Office15570164,044
Arnold Police Department54721,102
Festus Police Department291012,098
Eureka Police Department26310,834
De Soto Police Department1776,355
Crystal City Police Department1574,698
Pevely Police Department1465,917
Hillsboro Police Department1103,231
Herculaneum Police Department814,149
Byrnes Mill Police Department603,024
Kimmswick Police Department01151

Full-time employees of the county's city police departments and sheriff's office, as each reported them to the FBI (Uniform Crime Reporting, Law Enforcement Employees), per 1,000 people in the areas those agencies serve (the FBI's population figures). A year is shown only when every one of these agencies sent a count; a count under half or over double the agency's own counts in nearby years is treated as not sent. Towns policed under contract by another agency are counted through that agency. State police, campus and other agencies aren't included. Sheriffs' offices often also run the county jail and courthouse security, so their staff counts include those jobs.

Quick answers

Who is the Jefferson County Assessor?
Bob Boyer (Republican) is the Assessor of Jefferson County, Missouri.
Who is the Jefferson County Circuit Clerk?
Michael Reuter (Republican) is the Circuit Clerk of Jefferson County, Missouri.
Who is the Jefferson County Collector of Revenue?
Michelle Worth (Republican) is the Collector of Revenue of Jefferson County, Missouri.
Who is the Jefferson County County Clerk?
Jeannie Goff (Republican) is the County Clerk of Jefferson County, Missouri.
Who is the Jefferson County Prosecuting Attorney?
Trisha C. Stefanski (Republican) is the Prosecuting Attorney of Jefferson County, Missouri.
Who is the Jefferson County Public Administrator?
Tracey Perry (Republican) is the Public Administrator of Jefferson County, Missouri.
Who is the Jefferson County Recorder of Deeds?
Debbie Dunnegan Waters (Republican) is the Recorder of Deeds of Jefferson County, Missouri.
Who is the Jefferson County Sheriff?
Dave Marshak (Republican) is the Sheriff of Jefferson County, Missouri.
Who is the Jefferson County Treasurer?
Paula Wagner (Republican) is the Treasurer of Jefferson County, Missouri.
Who are the Jefferson County commissioners?
Brian Haskins (County Council, District 1); Billy Crow (County Council, District 2); Lori Aronns (County Council, District 3); Charles Groeteke (County Council, District 4); Scott Seek (County Council, District 5); Tim Brown (County Council, District 6); Bob Tullock (County Council, District 7); Dennis Gannon (County Executive).
What is the population of Jefferson County?
About 229,458 people, with a median age of 40.3; the median household income is $82,851 and 9% live below the poverty line (Census Bureau, American Community Survey 2020–2024 5-year estimates).
What is the unemployment rate in Jefferson County?
3.0% in September 2026 (preliminary): 3,810 people unemployed in a labor force of 125,066, against 3.2% a year earlier (Bureau of Labor Statistics, Local Area Unemployment Statistics, not seasonally adjusted).
How many local governments are there in Jefferson County?
75 in the Census Bureau's 2022 Census of Governments: 1 county, 15 municipal, 12 school district and 47 special district governments.

Officeholders as of November 6, 2026, from the Missouri Secretary of State's Official Manual (Blue Book) 2025–2026; each name links to its source. Officials change between elections (appointments, resignations), and the body's own website is the authority. Party is shown only for offices elected on a partisan ballot.

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