August 4 primary result: Steve Ehlmann (47.8 percent) won the Republican nomination over Bill Eigel (31.7 percent), Jason Law (19.1 percent), Arnie "AC" Dienoff (1.4 percent) and advances to the November 3 ballot, per graphics.stltoday.com reporting of the official results (re-verify against the certified canvass).
Steve Ehlmann · RepublicanIncumbent▾
The incumbent county executive since 2007, seeking a sixth term, per the county's official voter guide. A former teacher and lawyer, he has served as a state representative, state senator, circuit judge, and director of administration, per his voter-guide submission. No campaign website or questionnaire response was found as of September 8, 2026.
Priorities: Keep the county real property tax rate at zero for an 11th year, per his voter-guide response · Complete jail expansion, a drug treatment center, and parks projects, per his response · Complete I-64 and I-70 improvements and a regional law enforcement training center, per his response
David Veneziano · Democratic▾
Unopposed on the Democratic side. He holds a physics degree and an MBA and has spent about twenty years in biotechnology manufacturing quality roles, currently as site quality head at a nonprofit blood-testing lab, per his voter-guide submission. No campaign website or questionnaire response was found as of September 8, 2026.
Priorities: Housing reform including renter protections, per his voter-guide response · Term-limit and campaign-finance reform for county offices, per his response · Regional cooperation with neighboring counties, per his response
Matt Swanson is the only candidate who filed; unopposed candidates appear on Missouri's November 3 general election ballot, per the county's official voter guide. Appears only on District 1 ballots.
Matt Swanson · RepublicanIncumbent▾
The sitting District 1 councilmember and council vice chair, a lifelong county resident who teaches American history in the Fort Zumwalt School District and served three terms as a Wentzville alderman, per his voter-guide submission. No campaign website or questionnaire response was found as of September 8, 2026.
Priorities: Infrastructure and responsible budgeting, per his voter-guide response · Public safety and constituent engagement, per his response · Managed, responsible growth, per his response
August 4 primary result: Mike Elam (67.7 percent) won the Republican nomination over Annette Sieve (32.3 percent) and advances to the November 3 ballot, per graphics.stltoday.com reporting of the official results (re-verify against the certified canvass). Appears only on District 3 ballots.
Mike Elam · RepublicanIncumbent▾
The sitting District 3 councilmember and current council chair, a Navy corpsman veteran appointed to the council in 2013 who helped create the county's Port Authority, per his voter-guide submission and the county's council roster. No campaign website or questionnaire response was found as of September 8, 2026.
Priorities: Safe neighborhoods, good roads, low taxes, per his voter-guide response · Workforce training for nearby AI-driven growth, per his response · Keeping the county affordable for families, per his response
August 4 primary result: Terry Hollander (70.6 percent) won the Republican nomination over Judi Gambino (29.4 percent) and advances to the November 3 ballot, per graphics.stltoday.com reporting of the official results (re-verify against the certified canvass). Appears only on District 5 ballots.
Terry Hollander · RepublicanIncumbent▾
The sitting District 5 councilmember, a 50-year educator and coach who has represented the district since 2008, per his voter-guide submission. No campaign website or questionnaire response was found as of September 8, 2026.
Priorities: Infrastructure, business growth, and job creation, per his voter-guide response · Hold the line on property taxes, per his response · Public safety and the county park system, per his response
August 4 primary result: Tim Baker (77.4 percent) won the Republican nomination over James Ploudré (22.6 percent) and advances to the November 3 ballot, per graphics.stltoday.com reporting of the official results (re-verify against the certified canvass). Appears only on District 7 ballots.
Tim Baker · RepublicanIncumbent▾
The sitting District 7 councilmember, a retired professional civil engineer who worked for the St. Louis County Highway Department and as St. Charles city public works director, per his voter-guide submission. No campaign website or questionnaire response was found as of September 6, 2026.
Priorities: Responsive constituent service and planning-board work, per his voter-guide response · Stormwater fixes for 1980s-era subdivisions, per his response · First responders and slower residential speeds, per his response
Monica Balestreri · Democratic▾
Unopposed on the Democratic side, with over 15 years at the intersection of government, public safety, and data, starting as a crime and GIS analyst for the St. Charles City Police Department, per her voter-guide submission. No campaign website or questionnaire response was found as of September 8, 2026; the official election filing is the only verifiable source for Monica Balestreri.
Priorities: Verify infrastructure capacity before new developments, per her voter-guide response · Fiscal accountability and transparent budgeting, per her response · Data-driven council decisions, per her response
Travis Welge is the only candidate who filed; unopposed candidates appear on Missouri's November 3 general election ballot, per the certified county filing list.
Travis Welge · RepublicanIncumbent▾
The incumbent assessor for the past four years, with county government since 2007, serving on the Missouri State Assessors Association executive board, per his voter-guide submission. No campaign website or questionnaire response was found as of September 8, 2026.
Priorities: Fair and equitable assessments, per his voter-guide response · Transparency in the assessment process, per his response · Responsive customer service, per his response
August 4 primary result: Michelle D. McBride (73.1 percent) won the Republican nomination over Erica Bridges (26.9 percent) and advances to the November 3 ballot, per graphics.stltoday.com reporting of the official results (re-verify against the certified canvass).
Michelle D. McBride · RepublicanIncumbent▾
The incumbent collector since 2007, who established the county's Senior Property Tax Relief Program, per her voter-guide submission. No campaign website or questionnaire response was found as of September 8, 2026.
Priorities: Expand digital services like e-billing, per her voter-guide response · Eliminate annual renewal for senior tax relief, per her response · Better call handling during peak season, per her response
August 4 primary result: Kurt Bahr (67.1 percent) won the Republican nomination over Jen Olson (33 percent) and advances to the November 3 ballot, per graphics.stltoday.com reporting of the official results (re-verify against the certified canvass).
Kurt Bahr · RepublicanIncumbent▾
Bahr has served as St. Charles County Director of Elections for eight years and previously served eight years as a Missouri state representative, following four years as an Air Force finance officer, per the campaign site. Bahr is a fourth-generation St. Charles County resident and a certified elections and registration administrator, per the campaign site.
Priorities: Accurate rolls, trained poll workers, reliable results, per his voter-guide response · Paper ballots and documented chain of custody, per his response · Public hand-count audits after every election, per his response
Carl Herman Freese · Libertarian▾
Carl Herman Freese filed as the Libertarian candidate for St. Charles County Director of Elections and also as a township committeeman, per the county's official candidate filing list. Carl Herman Freese appears on the November 3, 2026 ballot for Director of Elections, per the county elections office's certified candidate list. No campaign website or questionnaire response was found as of September 6, 2026.
Joseph G. McCulloch is the only candidate who filed; unopposed candidates appear on Missouri's November 3 general election ballot, per the certified county filing list.
Joseph G. McCulloch · RepublicanIncumbent▾
The incumbent prosecuting attorney, elected in 2024 after more than 20 years with the St. Louis Metropolitan Police Department including homicide investigation, per his voter-guide submission. No campaign website or questionnaire response was found as of September 8, 2026.
Priorities: Victims' rights and offender accountability, per his voter-guide response · Support for treatment courts, per his response · Transparency about prosecutorial decisions, per his response
Mary E. Dempsey is the only candidate who filed; unopposed candidates appear on Missouri's November 3 general election ballot, per the certified county filing list.
Mary E. Dempsey · Republican▾
Mary E. Dempsey is the sitting St. Charles County Recorder of Deeds, per the official county directory. She is the Republican candidate seeking reelection to the office in November. Mary E. No campaign website or questionnaire response was found as of September 6, 2026.
Scott A. Lewis is the only candidate who filed; unopposed candidates appear on Missouri's November 3 general election ballot, per the certified county filing list.
Scott A. Lewis · Republican▾
Scott A. Lewis is the sitting St. Charles County Sheriff, per the official county directory. He is the Republican candidate seeking reelection to the office in November. Scott A. No campaign website or questionnaire response was found as of September 6, 2026.
Tony Lovasco (Republican), Donald R Looney Jr (Democratic) meet on the November 3 ballot. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
Tony Lovasco · Republican▾
Tony Lovasco is a Missouri state representative who has served on the Government Accountability Committee as vice chair, as well as the Ways and Means and General Laws committees, per the campaign site.
Priorities: Reducing wasteful government spending · Increasing government transparency · Prioritizing road and infrastructure safety (per the campaign site)
Donald R Looney Jr · Democratic▾
Donald Looney is a longtime United Auto Workers union member and a Wentzville resident whose children attended Wentzville public schools, per his campaign website. He describes his campaign as a grassroots effort focused on the district's working families.
Priorities: Advancing workers' rights, living wages and union power · Expanding access to healthcare · Supporting free early childhood education (per the campaign site)
Deanna Self (Republican), Amber Teson (Democratic) meet on the November 3 ballot; Deanna Self is the sitting member per the House roster. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
Deanna Self · RepublicanIncumbent▾
Deanna Self is a Republican candidate for Missouri state representative from St. Charles County, per the campaign site. She has a background in professional counseling and small business, and previously chaired the St. Charles County chapter of Missouri Right to Life from 2019 to 2020, per the campaign site.
Priorities: Supporting tax cuts · Expanding school choice and parental rights in education · Supporting law enforcement and Second Amendment protections (per the campaign site)
Amber Teson · Democratic▾
Amber Teson holds a political science degree from the University of Missouri-St. Louis and a master's degree in business from the University of Lancashire in Cyprus, and has worked in service- and business-focused roles, per her campaign website. She grew up as a 4-H member and the granddaughter of a farmer in the district.
Priorities: Strong public schools that prepare students for the future · Affordability and good jobs, including support for local businesses · Public safety and access to community health services (per the campaign site)
Wendy L. Hausman (Republican), Dale Conoyer (Democratic) meet on the November 3 ballot; Wendy L. Hausman is the sitting member per the House roster. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
Wendy L. Hausman · RepublicanIncumbent▾
Wendy Hausman has spent years working in and serving the St. Charles County community she represents, per the campaign site. The site does not detail a specific occupation.
Priorities: Limited government and fiscal responsibility · Support for law enforcement and first responders · Support for local businesses and taxpayers (per the campaign site)
Dale Conoyer · Democratic▾
Dale Conoyer is a first-time candidate whose family has lived in the northern farmlands of Saint Charles County for generations, per his campaign website. He said he was inspired to run in part by a family history of union membership and by his work canvassing for Proposition A in 2024.
Priorities: Affordability for Missouri families · Giving constituents a stronger voice in Jefferson City and respecting citizen ballot initiatives · Reinvesting state budget surpluses in schools, roads and hospitals (per the campaign site)
Scott Miller (Republican), Chris Chapman (Democratic) meet on the November 3 ballot; Scott Miller is the sitting member per the House roster. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
Scott Miller · RepublicanIncumbent▾
Scott Miller is a small business owner and U.S. Army veteran who served in the Army Reserve and Missouri National Guard in field artillery and combat engineer units, per his official House biography. He holds degrees from the University of Missouri-St. Louis, Washington University and Indiana University. Miller was first elected to the Missouri House in 2024 and serves on the Commerce and Conservation and Natural Resources committees. No campaign website or questionnaire response was found as of September 6, 2026.
Chris Chapman · Democratic▾
Chris Chapman has lived in Saint Charles for more than 24 years and says he brings 30 years of problem-solving experience to public service, per his candidate platform. He previously ran for the District 69 seat in 2024. No campaign website or questionnaire response was found as of September 6, 2026.
Priorities: Expanding access to quality public education · Addressing Missouri's mental health provider shortage · Protecting worker wages and supporting local businesses (per the candidate questionnaire)
Richard W West (Republican), David Rogers (Democratic) meet on the November 3 ballot; Richard W West is the sitting member per the House roster. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
Richard W West · RepublicanIncumbent▾
Richard West is the mayor of New Melle, currently serving his fourth term, and a small business owner, per his official House biography. He retired after 21 years as a law enforcement officer and criminal investigator and served 28 months overseas as an international police advisor in Iraq. West was first elected to the Missouri House in 2020. No campaign website or questionnaire response was found as of September 6, 2026.
David Rogers · Democratic▾
David Rogers is the Democratic nominee for Missouri House District 102 on the November 3, 2026 ballot, per the Missouri Secretary of State's certified general election candidate list. No campaign website or questionnaire response was found as of September 6, 2026.
Dave Hinman (Republican), Don Crozier (Democratic) meet on the November 3 ballot; Dave Hinman is the sitting member per the House roster. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
Dave Hinman · RepublicanIncumbent▾
Dave Hinman retired in 2021 after 35 years with the QuikTrip Corporation, per his official House biography. He previously served on the O'Fallon City Council, including as council president pro tempore, and as a commissioner on the city's planning and zoning commission. Hinman was first elected to the Missouri House in 2022. No campaign website or questionnaire response was found as of September 6, 2026.
Don Crozier · Democratic▾
Don Crozier is a retired aerospace engineer with a background in chemistry and 40 years of residency in St. Charles County, running as the Democratic candidate for Missouri's 103rd House District, per the campaign site.
Priorities: Quality public education · Affordable healthcare for all · Public safety measures to reduce gun violence (per the campaign site)
Terri Violet (Republican), Tara Murray (Democratic) meet on the November 3 ballot; Terri Violet is the sitting member per the House roster. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
Terri Violet · RepublicanIncumbent▾
Terri Violet is a U.S. Navy veteran and retired alderman for the city of St. Peters, and a founding member of the Mid America Veterans Museum, per the campaign site. She sponsored three bills during her tenure as alderman, per the campaign site.
Priorities: Support for veterans · Keeping taxes low for families and local businesses · Support for education quality in local schools (per the campaign site)
Tara Murray · Democratic▾
Tara Murray is an educator with more than 30 years of teaching experience and a longtime North County and St. Peters community resident, per the campaign site. She has served as an MNEA representative and grassroots advocate for educators and students, per the campaign site.
Priorities: Supporting the right of every child to a quality education · Government accountability that delivers real results · Building a community where children can thrive (per the campaign site)
Colin Wellenkamp (Republican), Cat Clayton (Democratic) meet on the November 3 ballot; Colin Wellenkamp is the sitting member per the House roster. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
Colin Wellenkamp · RepublicanIncumbent▾
Colin Wellenkamp has more than two decades of experience in sustainable development and environmental policy, per the campaign site. He founded and leads the Mississippi River Cities and Towns Initiative, coordinating 102 mayors across ten states, and has taught sustainability and economics at Washington University and Saint Louis University, per the campaign site.
Priorities: Supporting law enforcement agencies · Securing resources for St. Charles County schools · Improving water and transportation infrastructure (per the campaign site)
Cat Clayton · Democratic▾
Cat Clayton is a software and data engineer and community advocate, per her candidate profile with the recruitment group Leaders We Deserve. Her father and husband have both served in the military. No campaign website or questionnaire response was found as of September 6, 2026.
Priorities: Lowering costs for families · Strengthening public schools · Protecting access to healthcare (per the candidate questionnaire)
Travis Wilson (Republican), Jewel Kelly (Democratic) meet on the November 3 ballot; Travis Wilson is the sitting member per the House roster. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
Travis Wilson · RepublicanIncumbent▾
Travis Wilson is a licensed real estate agent who previously worked in economic development for the cities of Saint Charles and Florissant, per his official House biography. He received the Missouri Economic Development Council's Business Retention Award in 2019. Wilson was first elected to the Missouri House in 2022. No campaign website or questionnaire response was found as of September 6, 2026.
Jewel Kelly · Democratic▾
Jewel Kelly is an Air Force veteran and small-business owner who built a real estate business with his wife, per his campaign website. He holds a master's degree in legal studies from Washington University in St. Louis School of Law, an MBA from Olivet Nazarene University, and a bachelor's degree in speech communications from the University of Illinois at Urbana-Champaign. In 2018 he co-founded A Fighting Chance Foundation, a mental health and suicide-awareness nonprofit.
Priorities: Lowering costs, including a proposed Truth-in-Pricing law and an expanded Child Tax Credit · Expanding mental health and crisis-response funding, including 988 and mobile crisis teams · Public safety measures including universal background checks (per the campaign site)
Mark Matthiesen (Republican), Gary Wester (Democratic) meet on the November 3 ballot; Mark Matthiesen is the sitting member per the House roster. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
Mark Matthiesen · RepublicanIncumbent▾
Mark Matthiesen is a licensed real estate agent, per his official House biography. He was first elected to the Missouri House in 2016 and represents part of St. Charles County. Matthiesen serves as vice chairman of the Insurance committee. No campaign website or questionnaire response was found as of September 6, 2026.
Gary Wester · Democratic▾
Gary Wester has lived in St. Charles County with his wife for nearly two decades, per his candidate profile. In retirement he has volunteered with the Missouri Master Naturalist program and Stream Team and serves as treasurer of the University of Missouri St. Charles Extension Council. No campaign website or questionnaire response was found as of September 6, 2026.
Priorities: Fully funding public schools and higher education · Opposing additional tax breaks for business relocation · Regulated review of data center projects to protect water and land resources (per the candidate questionnaire)
Mike Costlow (Republican), Stephen Scott (Democratic) meet on the November 3 ballot; Mike Costlow is the sitting member per the House roster. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
Mike Costlow · RepublicanIncumbent▾
Mike Costlow is a small business owner and IT professional in the utility industry who relocated to Missouri in 2012 to work with an internet service provider in Cape Girardeau, per the campaign site.
Priorities: Protecting Lake St. Louis waterways from pollution as the region grows · Cybersecurity protections for the state · Supporting local control of Missouri government decisions (per the campaign site)
Stephen Scott · Democratic▾
Stephen Scott is the Democratic nominee for Missouri House District 108 on the November 3, 2026 ballot, per the Missouri Secretary of State's certified general election candidate list. No campaign website or questionnaire response was found as of September 6, 2026.
Nick Schroer (Republican), Susan Shumway (Democratic) meet on the November 3 ballot; Nick Schroer is the sitting member per the Senate roster. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
Nick Schroer · RepublicanIncumbent▾
Nick Schroer is an attorney at Avery Injury Law in St. Louis who previously served as general counsel for small businesses owned by Venture Group Investments, per the campaign site. He holds a degree in criminology from the University of Missouri-St. Louis and a law degree from Southern Illinois University School of Law, and was named a Missouri Top 40 Under 40 Attorney in 2014, per the campaign site.
Priorities: Second Amendment protections · Support for law enforcement (per the campaign site)
Susan Shumway · Democratic▾
Susan Shumway is an ordained minister in the United Church of Christ who works as an interim pastor and hospice chaplain, per her campaign website. She holds a bachelor's degree in history from the University of Missouri-Kansas City and a Master of Divinity from Texas Christian University, and has lived in O'Fallon for more than 18 years.
Priorities: Fully funded public schools and well-paid teachers · Lower costs for families on groceries and medicine · Affordable and accessible healthcare, including mental health care (per the campaign site)
Mike Deering (Republican), John Wells (Democratic) meet on the November 3 ballot. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
Mike Deering · Republican▾
Mike Deering is a Missouri farmer and small business owner who has served as Executive Vice President of the Missouri Cattlemen's Association since 2012, per his campaign website and the Missouri Independent. He and his wife live in Montgomery City, where they raise cattle and sheep and, in 2024, opened a storefront selling farm-fresh meats and Missouri-made products. He is the Republican nominee for Missouri Senate District 10.
Priorities: Limiting government growth and demanding accountability for how tax dollars are spent · Strengthening protections for landowners and property rights · Supporting school choice while protecting rural public schools (per the campaign site)
John Wells · Democratic▾
John Wells has nearly 30 years of experience as a Missouri state employee and holds a Master's in Public Administration from the Truman School at the University of Missouri, per his campaign website. KOMU reports he is a retired communications official and public school aide from Holts Summit. He is the Democratic nominee for Missouri Senate District 10.
Priorities: Government accountability in the Missouri Legislature, per the campaign site
Brittney R. Smith (Republican) is the only certified candidate for this partisan circuit judgeship, which serves St. Charles County, per the Missouri Secretary of State's certified general election candidate list. Circuit judges in nonpartisan court plan circuits appear as retention questions instead.
Brittney R. Smith · RepublicanIncumbent▾
Brittney R. Smith is a Circuit Judge in Division 1 of the 11th Judicial Circuit, appointed by Gov. Mike Parson in 2024 after serving as an associate circuit judge in St. Charles County, per The Missouri Times and Missouri Lawyers Media. She holds a bachelor's degree in business administration from Boston University and a law degree from St. Louis University. No campaign website or questionnaire response was found as of September 6, 2026.
These race previews show candidates we’re tracking now. A ZIP code shows your statewide and congressional races; a street address adds county and city contests. Local races are address-specific. This guide previews tracked contests, while the lookup tool narrows the list to a voter’s exact address. Tap any name to see the race, full candidate profiles, and everything else on your exact ballot. Missouri nominees were set by the August 4 primary (plurality, no runoffs) and meet on the November 3 ballot; unopposed nominees still print. All 163 state House seats, the even-numbered state Senate districts, partisan circuit judgeships in non-plan circuits and the county offices on the four-year off-presidential cycle (presiding commissioner, clerk, circuit clerk, auditor, recorder, collector, prosecuting attorney) are up; sheriff, assessor, treasurer and the associate commissioners were elected in 2024, per the Secretary of State.
