Littleton leans Democratic by roughly 18 points: about 59% of voters vote Democratic and 41% Republican.
About 85% of adults in Littleton typically vote, above the U.S. average of about 62%. Among adults in Littleton, ~50% vote Democratic, ~35% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How Littleton compares
Among cities within 25 miles, Littleton leans more Democratic than 45 of 68 neighbors.
Littleton runs about 6 points more Democratic than Colorado as a whole.
Politics vary noticeably by neighborhood within Littleton. The northeast side is the most Democratic-leaning (D+27) and the southwest side is the least Democratic-leaning (D+3), a spread of about 24 points.
Why Littleton leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Littleton, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 83% of residents in Littleton live in densely developed areas, about 47 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Littleton sits in the top quarter (about 58%, above 96% of cities).
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Littleton, CO sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Littleton looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Littleton is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 70%, about 10 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Littleton have completed high school, above 87% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Columbine Valley, CO R+5
- Columbine, CO D+3
- Bow Mar, CO D+12
- Sheridan, CO D+16
- Ken Caryl, CO D+7
- Dakota Ridge, CO D+9
- Highlands Ranch, CO D+4
- Cherry Hills Village, CO Even
- Englewood, CO D+27
- Lakewood, CO D+22
Cities with Similar Populations
- Westland, MI D+15
- Madera, CA Even
- Mountain View, CA D+46
- Springdale, AR R+7
- Bloomington, IL D+11
- Somerville, MA D+69
- Johns Creek, GA D+9
- Mission Viejo, CA R+3
- Centennial, CO D+16
- Cicero, IL D+34
Sources and methodology
Precinct-level voting records used to fit the model come from Colorado Secretary of State, Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.