Mahaska County, Iowa

Iowa Senate District 19

2 candidates are tracked for Iowa Senate District 19 on the November 3, 2026 ballot: Barb Kniff McCulla and Zachary Mecham. Candidate information follows official Mahaska County election filings; verify with the official election office linked below.

About this race

Barb Kniff McCulla (Republican), Zachary Mecham (Democratic) are on the November 3 ballot for Iowa Senate District 19. Not on the November ballot: Ken Rozenboom, the sitting member per the roster. Major-party nominees were chosen at the June 2 primary; No Party candidates qualify by nominating petition. The field is the Secretary of State's 2026 General Election candidate list, as read September 11, 2026. This seat is elected by district; only the district covering your address appears on your ballot.

What this office does

State legislator. State legislators write and vote on state laws and the state budget, which fund schools, roads, prisons, universities and health programs, and set the rules for local governments and elections. Each member represents one district and serves on committees that shape bills before a floor vote. Terms are two years in most state houses and four in most state senates.

This race. Elected by district: only voters who live in the district see this race on their ballot.

Iowa › Mahaska County › Iowa Senate District 19

Barb Kniff McCulla

Republican

Biography

Barb Kniff McCulla is the Republican candidate for Iowa Senate District 19 on the November 3, 2026 ballot, per the Secretary of State's 2026 General Election candidate list. Kniff McCulla currently serves as the Iowa House member for District 37 and is running for the open Iowa Senate District 19 seat, succeeding Sen. Ken Rozenboom, per Newton Daily News. No campaign website was found as of September 11, 2026; the Secretary of State's certified candidate list is the only verifiable source for Barb Kniff McCulla.

Zachary Mecham

Democratic

Top priorities

Access to Medicaid and vocational rehabilitation resources for people with disabilities

Per Newton Daily News.

Biography

Zachary Mecham, the Democratic nominee for Iowa Senate District 19, is a Pleasantville-based entertainer and inventor who co-founded two statewide disability rights organizations, according to the Newton Daily News. He is an entrepreneur who has a disability himself. No campaign website was found as of September 11, 2026; the Secretary of State's certified candidate list is the only verifiable source for Zachary Mecham.

Next on your ballotIowa House District 37

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Voting info and more

Questions about this race

Who is running for Iowa Senate District 19 in 2026?

When is the Iowa Senate District 19 election in Iowa?

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

How do I see my exact Mahaska 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 Mahaska County and state election office filings. Bios and priorities carry their attribution inline.

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

The rest of your Mahaska County ballot

3 tracked races in Mahaska County, Iowa. Landed here from another county's search? Look up your own ballot below.

Also on your ballot

Iowa House District 88 See all 3 Mahaska County races

Candidate profiles

Barb Kniff McCulla, full profile Zachary Mecham, full profile Official Iowa election office