Allen leans slightly Republican by roughly 6 points: about 47% of voters vote Democratic and 53% Republican.
About 66% of adults in Allen typically vote, near the U.S. average of about 62%. Among adults in Allen, ~31% vote Democratic, ~35% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.
How Allen compares
Among cities within 25 miles, Allen leans more Republican than 17 of 73 neighbors.
Allen runs about 8 points more Democratic than Texas as a whole.
Politics vary noticeably by neighborhood within Allen. The northeast side is the most split-leaning (R+13) and the southwest side is the least split-leaning (Even), a spread of about 12 points.
Why Allen 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 Allen, not a ranked or complete list of what matters most.
Allen votes Republican even though it is densely developed (about 91%, far above the Texas average of 35%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 79% of households in Allen are family households, above 87% of cities.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Allen, TX sits in the top quarter 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 Allen looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in Allen have completed high school, about 11 points above the Texas average of 86%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Fairview, TX R+21
- Parker, TX R+17
- Lucas, TX R+34
- Plano, TX D+3
- McKinney, TX R+6
- Murphy, TX R+8
- St. Paul, TX R+23
- Lowry Crossing, TX R+21
- Wylie, TX R+12
- Frisco, TX R+5
Cities with Similar Populations
- Frederick, MD D+27
- Missouri City, TX D+36
- Brockton, MA D+42
- Menifee, CA R+14
- Sandy, UT D+4
- Fayetteville, AR D+17
- Roswell, GA D+7
- Georgetown, TX R+15
- Arden-Arcade, CA D+25
- Rio Rancho, NM R+4
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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.