2 candidates are tracked for Idaho House District 21 Seat B on the November 3, 2026 ballot: Casey Hess and Jeff Ehlers. Candidate information follows official Ada County election filings; verify with the official election office linked below.
Casey Hess (D), Jeff Ehlers (R) are on the November 3, 2026 ballot for Idaho House District 21 Seat B. Jeff Ehlers is the sitting member, per the Idaho Legislature's membership roster. Party nominees were chosen at the May 19, 2026 primary, per the Idaho Secretary of State's candidate filing portal.
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. The sitting officeholder, Jeff Ehlers, is on the ballot.
Idaho › Ada County › Idaho House District 21 Seat B
D
Casey grew up in Lewis County and has lived in Idaho's Treasure Valley since the 1990s, per KIVI-TV. She previously ran for the Idaho House in 2024 and is running again for District 21, Seat B in 2026, per KIVI-TV, with a focus on increasing funding for public schools, per KIVI-TV. No campaign website was found as of September 18, 2026.
R Incumbent
Jeff is a Meridian CFO, CPA and small business owner serving his second term representing House District 21, Seat B, per the Idaho Legislature. He chairs the House Ways and Means Committee, per the Idaho Legislature.
Who is running for Idaho House District 21 Seat B in 2026?
2 candidates are tracked for Idaho House District 21 Seat B on the November 3, 2026 ballot: Casey Hess and Jeff Ehlers. Candidate information follows official Ada County election filings; verify with the official election office linked below.
When is the Idaho House District 21 Seat B election in Idaho?
Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for Idaho are on the Idaho election hub at theballotbrief.com.
How do I see my exact Ada 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.
Candidate roster from official Ada County and state election office filings, last verified September 27, 2026. Bios and priorities carry their attribution inline.
Cross-check with the official Idaho election office, or see the full Ada County sample ballot and your exact ballot by address.
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