Sun City leans Republican by roughly 20 points: about 40% of voters vote Democratic and 60% Republican.
About more than 99% of adults in Sun City typically vote, above the U.S. average of about 62%. Among adults in Sun City, ~40% vote Democratic, ~60% Republican, and ~0% don't vote. The map below shows estimated turnout by block group.
How Sun City compares
Sun City runs about 6 points more Republican than Texas as a whole.
Politics vary noticeably by block within Sun City. The northwest side is the most Republican-leaning (R+24) and the northeast side is the least Republican-leaning (R+14), a spread of about 10 points.
Why Sun City leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Sun City. The lean here lands roughly where demographic data alone would predict.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Sun City, Georgetown, TX sits in the top tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Sun City looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Sun City 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 75%, about 15 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 92% of households in Sun City own their home, compared to around 51% in nearby neighborhoods. High high-school completion lines up with higher turnout, and about 98% of adults in Sun City have completed high school, above 83% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Paloma Lake, Round Rock, TX D+5
- Fern Bluff, Brushy Creek, TX D+12
- Crossley Crossing, Round Rock, TX Even
- Northwest Austin, Austin, TX D+25
- Milwood, Austin, TX D+42
- Mountain Creek, Pflugerville, TX D+24
- North Burnet, Austin, TX D+45
- North Austin, Austin, TX D+48
- North Shoal Creek, Austin, TX D+51
- North Lamar, Austin, TX D+37
Neighborhoods with Similar Populations
- Central Terry, Billings, MT D+3
- Red Hook, Brooklyn, NY D+62
- Broadway-Fillmore, Buffalo, NY D+47
- Downtown Los Angeles, Los Angeles, CA D+65
- Pilsen, Chicago, IL D+62
- Vistancia, Peoria, AZ R+21
- Cherry Avenue, Tucson, AZ D+33
- Barton-McFarland, Detroit, MI D+87
- Evanston, Cincinnati, OH D+63
- Windsor Spring, Hephzibah, GA D+69
Sources and methodology
Precinct-level voting records used to fit the model come from Texas Secretary of State, Elections Division, 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.