DuPage County, Illinois

DuPage County Board District 5 (4-Year Term)

2 candidates are tracked for DuPage County Board District 5 (4-Year Term) on the November 3, 2026 ballot: Ian Holzhauer and Chris Jacks. Candidate information follows official DuPage County election filings; verify with the official election office linked below.

About this race

Ian Holzhauer won the Democratic nomination with 49.61 percent of the vote, defeating sitting board member Sadia Covert (35.59 percent) and Marylee Leu (14.80 percent); Chris Jacks ran unopposed for the Republican nomination, in the March 17 primary. They meet on the November 3 ballot, per the county's official canvass.

What this office does

County commissioner. The county board is the county's legislative and, in most states, executive body. Commissioners adopt the county budget and property tax rate, oversee roads, the jail, public health, planning and zoning in unincorporated areas, and appoint or confirm department heads. In counties with an elected county executive or judge, the board's role is mainly the budget and ordinances.

Illinois › DuPage County › DuPage County Board District 5 (4-Year Term)

Ian Holzhauer

Democratic

Top priorities

Wants to expand mental health crisis response programs at the county level, citing his work establishing a crisis response team within Naperville's police department
Supports better-integrated transit through the Northern Illinois Transit Agency, including improved coordination between Pace bus and Metra schedules
Backs fast-track incentives for developers to build affordable housing

Per Daily Herald.

Biography

Ian Holzhauer is a 43-year-old attorney from Naperville who has served on the Naperville City Council since 2021 and previously worked as a prosecutor and defense counsel in the Air Force JAG Corps, per Daily Herald. Holzhauer previously served as board chair of the Naperville Area Chamber of Commerce, per Daily Herald.

Campaign site (opens in a new tab)

Chris Jacks

Republican

Top priorities

Aims to be a moderate Republican voice in county government, advocating for efficiency and limiting overlap with other units of government
Supports collaboration between the County Board and the County Health Department to help fund mental health resources
Favors working with developers to expand affordable housing projects serving people with special needs and working families

Per the campaign site.

Biography

Jacks has lived in Naperville since 2008 and is married with two children in School District 203, per the campaign site. Jacks positions the campaign as a moderate Republican voice for the DuPage County Board, per the campaign site.

Campaign site (opens in a new tab)

Next on your ballotDuPage County Board District 5 (2-Year Term)

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Voting info and more

Questions about this race

Who is running for DuPage County Board District 5 (4-Year Term) in 2026?

When is the DuPage County Board District 5 (4-Year Term) election in Illinois?

Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for Illinois are on the Illinois election hub at theballotbrief.com.

How do I see my exact DuPage County ballot?

Enter your ZIP code in the lookup at theballotbrief.com for the statewide and congressional races, or a full street address to add the county, city and district contests for that location.

Verify this race

Candidate roster from official DuPage County and state election office filings, last verified September 29, 2026. Bios and priorities carry their attribution inline.

Cross-check with the official Illinois election office, or see the full DuPage County sample ballot and your exact ballot by address.

The rest of your DuPage County ballot

47 tracked races in DuPage County, Illinois. Landed here from another county's search? Look up your own ballot below.

Also on your ballot

DuPage County Board District 6 (4-Year Term)DuPage County Board District 6 (2-Year Term)Forest Preserve District of DuPage County President See all 47 DuPage County races

Candidate profiles

Ian Holzhauer, full profile Chris Jacks, full profile Official Illinois election office