The 2026 Colorado Senate election is scheduled to be held on November 3, 2026. Voters in 18 out of the 35 districts of the state Senate will elect their representative for a four-year term. This election will coincide with other Colorado elections of the same year and the biennial United States elections.
Background
In the 2024 US Presidential Election, Kamala Harris won 24 districts, while Donald Trump won 11. Republicans represented one district where Harris had won in 2024: District 30 (Harris +2.42%), represented by John Carson. Additionally, one Democrat, Nick Hinrichsen, represented District 3, which Trump won by 5.13%.
Retiring incumbents Democrats District 3: Nick Hinrichsen is retiring. District 20: Lisa Cutter is retiring to run for Jefferson County Commissioner. District 22: Jessie Danielson is term-limited. District 32: Robert Rodriguez is term-limited. District 34: Julie Gonzales is term-limited and ran for the U.S. Senate
Republicans District 4: Mark Baisley is retiring to run for the U.S. Senate.
Predictions SourceRankingAs of Sabato's Crystal Ball January 22, 2026State NavigateAugust 27, 2026
Incumbents and candidates † - Incumbent term-limited or not seeking re-election Dist.IncumbentThis raceMemberParty First ElectedStatusCandidates1st Byron PeltonRepublican2022 Incumbent Running 3rd Nick Hinrichsen†Democratic 2022 (Appointed)Incumbent Retiring 4th Mark Baisley†Republican 2022Incumbent Retiring 7th Janice RichRepublican 2022 Incumbent Running 8th Dylan RobertsDemocratic 2022 Incumbent Running 9th Lynda Zamora WilsonRepublican 2025 (Appointed)Incumbent Lost Re-nomination 11th Tony ExumDemocratic2022 Incumbent Running 15th Janice MarchmanDemocratic2022 Incumbent Running 17th Katie WallaceDemocratic2025 (Appointed) Incumbent Running 20th Lisa Cutter†Democratic 2022Incumbent Retiring 21st Adrienne BenavidezDemocratic 2026 (Appointed) Incumbent Running 22nd Jessie Danielson†Democratic 2018Incumbent Retiring 24th Kyle MullicaDemocratic 2022 Incumbent Running 25th William LindstedtDemocratic 2026 (Appointed) Incumbent Running 27th Tom SullivanDemocratic 2022 Incumbent Running 29th Iman JodehDemocratic 2025 (Appointed) Incumbent Running 30th John CarsonRepublican 2025 (Appointed) Incumbent Running 31st Matt BallDemocratic 2025 (Appointed) Incumbent Running 32nd Robert Rodriguez†Democratic 2018Incumbent Retiring 34th Julie Gonzales†Democratic 2018Incumbent Retiring 35th Rod PeltonRepublican 2022 Incumbent Running
Detailed Results
Footnotes
References