This is one of our least certain forecasts — state-legislative races have almost no district polling and many of these maps were redrawn. Read the range, not the midpoint. How this is modeled →
Democrats are favored to hold control of the Colorado Senate.
35 seats, one per district. Hover a district for its seat; the table below opens with the closest races and carries the exact values.
Census Bureau 2025 1:500,000 cartographic boundaries — simplified geometry for thematic mapping, not legal district lines.
| Democrat | Republican | ||||
|---|---|---|---|---|---|
| 30 | Modeled D-vs-R | Kevin Leung — 60 in 100 | Kevin Leung | John Carson | |
| 21 | Modeled D-vs-R | Democratic — 65 in 100 | Adrienne Benavidez · Alex Ryckman | Frederick Alfred Jr | |
| 11 | Modeled D-vs-R | Tony Exum Sr — 67 in 100 | Tony Exum Sr | Levon Stilson | |
| 3 | Modeled D-vs-R | Dana Charles — 70 in 100 | Aaron Gutierrez · Taylor Voss | Dana Charles | |
| 24 | Modeled D-vs-R | Kyle Mullica — 76 in 100 | Kyle Mullica | Kevin Allen | |
| 15 | Modeled D-vs-R | Janice Marchman — 79 in 100 | Janice Marchman | Rob Woodward | |
| 8 | Modeled D-vs-R | Dylan Roberts — 86 in 100 | Dylan Roberts | Corey Marshall | |
| 27 | Modeled D-vs-R | Tom Sullivan — 89 in 100 | Tom Sullivan | Darryl Gibbs · Danielle Lammon | |
| 9 | Modeled D-vs-R | Republican — 94 in 100 | William Delano Moses III | Terri Carver · Lynda Zamora Wilson | |
| 4 | Modeled D-vs-R | Teddy Collins — 96 in 100 | Justin Kurth | Teddy Collins |