99chambers

Colorado House of Representatives seat · lines in effect since 2022

Colorado House District 51

A district of about 92,000 people, 42% of adults with a bachelor's degree. It votes R+0.4 relative to the nation for president.

Ron Weinberg (R) · since Nov 5, 2024Next election Nov 7, 2028The 2026 race →

Where it sits among all 65 seats

Every Colorado House of Representatives seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.

R+0.446th most
Democratic
Most DemocraticMost Republican33rd seat · the majority lineDistrict 51

Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Every race on these lines

Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.

20162018202020242026
U.S. SenateR+12.4No raceR+8.6No raceNo race
GovernorNo raceR+7.3No raceNo raceNo race
Colorado House of RepresentativesNo raceNo raceNo raceR+5.2D+2.7

Outlined: the race for this seat itselfBlank: no race that year

Source: 99chambers results archive: precinct results allocated to current lines; 2026: Colorado Secretary of StateUpdated Nov 7, 2026, 3:01 PM ET

Who lives here, compared

Grey bars show the spread of all 65 seats. Small marks are other seats in Colorado. The black marker is District 51.

Adults with a bachelor's degree42% 45th pct · 36th of 65 in CO

Lower than 55% of seats.

White adults without a degree45% 89th pct · 8th of 65 in CO

Higher than 89% of seats.

Hispanic residents15% 42nd pct · 38th of 65 in CO

Lower than 58% of seats.

Black residents1% 33rd pct · 44th of 65 in CO

Lower than 67% of seats.

Asian residents1% 23rd pct · 50th of 65 in CO

Lower than 77% of seats.

People per square mile1,235 42nd pct · 38th of 65 in CO

Less dense than 58% of seats.

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET

Seats most like this one

Nearest seats on demographics, density and lean. 1 of the 4 flipped this year.

District 16
34% college gradsD+6.9Flipped DDistrict 55
36% college gradsR+15.7Held RDistrict 22
41% college gradsR+11.6CountingDistrict 65
50% college gradsR+17.9Held R

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Who has held it

These lines took effect in 2022.

  1. Ron Weinberg (R)
    2025– · Won 2024 by 5.2
  2. Hugh McKean (R)
    2023–2025 · Won 2022 unopposed

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)