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Jeff Cornilles

RepublicanIncumbent

Business owner

Jeff Cornilles is a Republican candidate for Idaho House of Representatives District 12A in the 2026 election. They are the incumbent.

From the candidate’s public filings

Background

Jeff Cornilles was born in Idaho and lives in Nampa, Idaho.[1][2] Cornilles' career experience includes owning Cornilles Financial Services and working as its CEO and as a financial services professional with MassMutual Idaho. He has been affiliated with the Nampa Rotary Club, the Nampa Chamber of Commerce, and the Nampa Development Corporation.[2][3]

Campaign themes

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You can ask Jeff Cornilles to fill out this survey by using the button below or emailing cornillesforidaho@gmail.com.

Jeff Cornilles did not complete [the profile publisher]'s 2024 Candidate Connection survey.

Who are you? Tell us about yourself.

I am a conservative, Christian, businessman from Nampa. I come from hard working railroaders and farmers who cleared land in south Nampa in the early 1900’s. I attended Nampa public schools and the University of Idaho. I then returned to Nampa to work alongside my father at Cornilles Financial Services where I have continued to work, own and manage for the past 25 years. I have a strong work ethic and am a proven leader.

We raised our kids in Nampa. I've been involved in coaching their teams and supportive of their schools, I also served on the Liberty charter school board. I was raised to enjoy and appreciate the outdoors. At a young age I started bird hunting with my dad. In the Fall I have an annual Elk hunting trip, in the Winter I am skiing at Brundage with my family, and in the Summer I am busy camping, fishing and kayaking.

We attend and are active at Lakeview Bible Church. I have always been a big supporter of this community. I support our Police and Fire Departments. I support the Nampa Boys and Girls Club, Breaking Chains Academy of Development Inc. and the local Salvation Army. I am a member of the Rotary Club and have been a member of the Nampa Chamber of Commerce for many years. I was recently appointed to Nampa’s Impact Fee committee and am a commissioner on the Nampa Development Corporation. (Nampa's Urban Renewal)

It is a privilege to run as your state representative, giving back to the community and state I call home.

Please list below 3 key messages of your campaign. What are the main points you want voters to remember about your goals for your time in office?

I am a forth generation Idahoan and a fiscally conservative republican. Born and raised in Nampa I have spent most of my life involved in my community giving back any way I can.In Education I support parental rights when it comes to their children's education, and will always support our teachers and the amazing work they do on a day to day basis.Taxes are a big issue, especially property taxes and more needs to be done to ease the burden for all property tax payers. local impact fees need to be raised as well so that growth pays for growth.

What areas of public policy are you personally passionate about?

I am pro-life and passionate about protecting unborn children and making it easier for families to adopt. The unborn are the least capable of protecting themselves and I will work tirelessly to draft and support legislation protecting their right to live.

The first and second amendments are under attack and we need to stand up against federal overreach. As a gun owner and avid hunter and NRA member I will stand up for our constitutional rights for law-abiding citizens to keep and bear arm's.

As a small business owner I will also support legislation that protects businesses from government overreach and mandates, that has happened in both the Obama and Biden administrations, as I was personally effected by both.

As a member of the Back Country Hunter and Anglers who's motto is "keep public lands in public hands" I will work to keep the outdoor lifestyle we all enjoy, accessible and open for generations to come. Idaho has the 3rd largest tract of public lands in the lower 48 states and I intend to keep it that way.

On the 2026 ballot

Links

Compiled from the candidate’s published profile as of September 30, 2026.

Source(opens in new tab)
Jeff Cornilles — Idaho House of Representatives District 12A candidate, 2026 | True Vote