Colorado State Senate District 25

State Legislative District Profile (Upper Chamber)

Overview

District ID
co-sd-025
State
Colorado
Chamber
Upper chamber (state senate)
District Code
025
Land Area
54.3 sq mi
Water Area
0.87 sq mi

Boundary

Boundary of Colorado State Senate District 25

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Broomfield County32.73 sq mi60.3%99.3%
Adams County21.44 sq mi39.5%1.8%
Weld County0.09 sq mi0.2%<0.1%

Showing all 3 counties

Places

PlaceOverlapShare of district landShare of place land
Broomfield city32.73 sq mi60.3%99.3%
Westminster city12.91 sq mi23.8%40.8%
Northglenn city6.37 sq mi11.7%86.6%
Shaw Heights CDP0.70 sq mi1.3%100.0%

Showing all 4 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 894,67756.1%13.1%39.5%
CO District 774,11243.9%10.3%60.5%

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

Voters

Registered Voters
129,230
Active Voters
115,577 (89.4%)

Party Registration

PartyVotersShare
Democratic34,40926.6%
Republican23,15117.9%
Unaffiliated68,45253.0%
Other parties3,2182.5%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202653,731 (41.6%)0 (0.0%)0 (0.0%)
2023–202494,616 (73.2%)13,996 (10.8%)11,512 (8.9%)
2021–202272,544 (56.1%)11,436 (8.8%)8,636 (6.7%)
2019–202085,872 (66.4%)21,150 (16.4%)11,913 (9.2%)
2017–201863,785 (49.4%)12,258 (9.5%)7,476 (5.8%)
2015–201664,881 (50.2%)6,413 (5.0%)5,830 (4.5%)
2013–201445,968 (35.6%)4,911 (3.8%)6,227 (4.8%)
2011–201252,931 (41.0%)4,304 (3.3%)4,348 (3.4%)

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
170,969 (± 2,009)
Median Age
37.6
Median Household Income
$107,625 (± $2,889)
High School Graduate or Higher (age 25+)
93.2%
Bachelor's Degree or Higher (age 25+)
47.9%

Population by Age

GroupPeopleShare
Under 1834,77920.3%
18 to 64110,20964.5%
65 and over25,98115.2%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)39,74323.2%
White, not Hispanic109,41864.0%
Black, not Hispanic2,3591.4%
Asian, not Hispanic9,6075.6%
American Indian / Alaska Native, not Hispanic4590.3%
Native Hawaiian / Pacific Islander, not Hispanic480.0%
Some other race, not Hispanic1,2500.7%
Two or more races, not Hispanic8,0854.7%

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
162,808
Citizen Voting Age Population (CVAP)
128,860

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic127,18878.1%
Hispanic35,62321.9%
White110,48567.9%
Black2,3531.4%
Asian7,8784.8%
American Indian / Alaska Native4600.3%
Native Hawaiian / Pacific Islander560.0%
Two or More Races4760.3%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic103,24080.1%
Hispanic25,62419.9%
White91,39370.9%
Black2,6382.0%
Asian7,5745.9%
American Indian / Alaska Native1,3591.1%
Native Hawaiian / Pacific Islander590.0%
Two or More Races2790.2%

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