Colorado State Senate District 8

State Legislative District Profile (Upper Chamber)

Overview

District ID
co-sd-008
State
Colorado
Chamber
Upper chamber (state senate)
District Code
008
Land Area
18,731.3 sq mi
Water Area
68.8 sq mi

Boundary

Boundary of Colorado State Senate District 8

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Moffat County4743.24 sq mi25.3%100.0%
Rio Blanco County3220.97 sq mi17.2%100.0%
Routt County2362.02 sq mi12.6%100.0%
Garfield County2303.26 sq mi12.3%78.1%
Grand County1846.44 sq mi9.9%100.0%
Jackson County1613.73 sq mi8.6%100.0%
Eagle County1488.04 sq mi7.9%88.3%
Summit County608.33 sq mi3.2%100.0%
Clear Creek County395.07 sq mi2.1%100.0%
Gilpin County150.02 sq mi0.8%100.0%

Showing all 10 counties

Places

PlaceOverlapShare of district landShare of place land
Keystone CDP41.40 sq mi0.2%100.0%
Copper Mountain CDP32.06 sq mi0.2%100.0%
Edwards CDP26.64 sq mi0.1%100.0%
Winter Park town16.89 sq mi0.1%99.2%
Granby town12.68 sq mi0.1%100.0%
Steamboat Springs city9.89 sq mi0.1%100.0%
Gypsum town8.85 sq mi<0.1%100.0%
Avon town8.35 sq mi<0.1%100.0%
Minturn town8.02 sq mi<0.1%100.0%
Floyd Hill CDP6.29 sq mi<0.1%100.0%
Breckenridge town6.05 sq mi<0.1%100.0%
Eagle town5.64 sq mi<0.1%96.5%
Craig city5.07 sq mi<0.1%100.0%
Tabernash CDP4.83 sq mi<0.1%100.0%
Vail town4.71 sq mi<0.1%100.0%
Rangely town4.30 sq mi<0.1%98.2%
Silverthorne town4.00 sq mi<0.1%98.5%
Upper Bear Creek CDP3.79 sq mi<0.1%100.0%
Meeker town3.59 sq mi<0.1%100.0%
Fraser town3.46 sq mi<0.1%100.0%
Hayden town3.28 sq mi<0.1%95.2%
Black Hawk city2.65 sq mi<0.1%85.0%
Blue River town2.46 sq mi<0.1%100.0%
Idaho Springs city2.25 sq mi<0.1%94.5%
Frisco town1.67 sq mi<0.1%100.0%

Showing top 25 of 57 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
CO District 2133,49282.6%18.5%43.9%
CO District 328,09717.4%3.9%56.1%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Voters

Registered Voters
127,604
Active Voters
113,027 (88.6%)

Party Registration

PartyVotersShare
Democratic26,81221.0%
Republican29,66223.2%
Unaffiliated68,11953.4%
Other parties3,0112.4%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202650,948 (39.9%)0 (0.0%)0 (0.0%)
2023–202492,821 (72.7%)11,073 (8.7%)15,350 (12.0%)
2021–202275,336 (59.0%)8,242 (6.5%)11,516 (9.0%)
2019–202085,974 (67.4%)16,948 (13.3%)15,628 (12.2%)
2017–201865,674 (51.5%)9,565 (7.5%)9,687 (7.6%)
2015–201667,890 (53.2%)4,444 (3.5%)7,857 (6.2%)
2013–201449,658 (38.9%)3,643 (2.9%)8,907 (7.0%)
2011–201255,465 (43.5%)2,874 (2.3%)7,209 (5.6%)

Turnout counts today's registered voters with a counted ballot in the cycle's elections (the odd and even year), as a share of today's registered voters. Voters who have since left the rolls are not counted.

Browse the voter list for this district (premium access; sign-in required)

Source: Civitech voter file snapshot as of 01/20/2026. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
162,916 (± 1,309)
Median Age
41.0
Median Household Income
$97,278 (± $3,350)
High School Graduate or Higher (age 25+)
94.8%
Bachelor's Degree or Higher (age 25+)
47.1%

Population by Age

GroupPeopleShare
Under 1831,29019.2%
18 to 64104,40064.1%
65 and over27,22616.7%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)31,12519.1%
White, not Hispanic117,63972.2%
Black, not Hispanic8120.5%
Asian, not Hispanic1,8271.1%
American Indian / Alaska Native, not Hispanic7790.5%
Native Hawaiian / Pacific Islander, not Hispanic2410.1%
Some other race, not Hispanic6930.4%
Two or more races, not Hispanic9,8006.0%

Source: U.S. Census Bureau, American Community Survey 2020-2024 ACS 5-year estimates (tables B01001, B01002, B01003, B03002, B15003, B19013) for this state legislative district. Estimates are survey-based; ± figures are 90% margins of error.

Citizen Voting Age Population

Total Citizen Population
154,108
Citizen Voting Age Population (CVAP)
123,322

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic130,25984.5%
Hispanic23,84915.5%
White123,89980.4%
Black8760.6%
Asian1,3320.9%
American Indian / Alaska Native7810.5%
Native Hawaiian / Pacific Islander2410.2%
Two or More Races1640.1%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic109,56588.8%
Hispanic13,75811.2%
White104,81785.0%
Black1,2901.0%
Asian1,5301.2%
American Indian / Alaska Native1,6121.3%
Native Hawaiian / Pacific Islander1810.1%
Two or More Races1260.1%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).