South Platte leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.
About 72% of adults in South Platte typically vote, above the U.S. average of about 62%. Among adults in South Platte, ~32% vote Democratic, ~40% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How South Platte compares
Among cities within 25 miles, South Platte leans more Republican than 42 of 55 neighbors.
South Platte runs about 23 points more Republican than Colorado as a whole. Colorado leans Democratic overall, while South Platte is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within South Platte. The southwest side is the most Republican-leaning (R+24) and the northwest side is the least Republican-leaning (R+9), a spread of about 15 points.
Why South Platte 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 South Platte, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 2% of residents in South Platte live in densely developed areas, about 33 points below the Colorado average of 35%. A high family-household share predicts Republican voting, and about 87% of households in South Platte are family households, above 98% of cities. South Platte runs against the grain of Colorado, a Republican-leaning pocket in a Democratic-leaning state.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; South Platte, CO sits in the top tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in South Platte looks the way it does
Areas with strong routine healthcare access turn out at higher rates. South Platte 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 74%, about 14 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 94% of households in South Platte own their home, about 19 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Buffalo Creek, CO R+5
- Roxborough Park, CO R+13
- Deckers, CO R+18
- Shamballah-Ashrama, CO R+18
- Sphinx Park, CO R+7
- Conifer, CO D+4
- Louviers, CO R+18
- Ken Caryl, CO D+7
- Pine, CO R+4
- Morrison, CO D+6
Cities with Similar Populations
- Salem Corners, MN R+34
- Prosperity, TN R+68
- Prospect, NC R+27
- West Brooklyn, IL R+39
- Selma, AR Even
- Niagara, KY R+52
- Outwood, PA R+56
- DeLay, MS R+73
- McCombs, KY R+75
- Glencliff, NH R+7
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.