Hillsboro leans heavily Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican.
About 54% of adults in Hillsboro typically vote, below the U.S. average of about 62%. Among adults in Hillsboro, ~19% vote Democratic, ~35% Republican, and ~46% don't vote. The map below shows estimated turnout by block group.
How Hillsboro compares
Among cities within 25 miles, Hillsboro is the least Republican-leaning.
Hillsboro runs about 17 points more Republican than Texas as a whole.
Politics vary noticeably by neighborhood within Hillsboro. The west side runs the most Democratic (D+3) and the southeast side runs the most Republican (R+63), a spread of about 66 points.
Why Hillsboro 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 Hillsboro, not a ranked or complete list of what matters most.
Hillsboro votes Republican even though it is densely developed (about 53%, well above the Texas average of 35%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Hillsboro, TX sits in the bottom quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Hillsboro looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Hillsboro is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The uninsured rate here is about 22%, about 12 points above the U.S. average of 10%. Renters vote less often than owners, and about 39% of households in Hillsboro rent, compared to around 16% in nearby cities. Low high-school completion lines up with lower turnout, and about 82% of adults in Hillsboro have completed high school, below 87% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Winslow, TX R+60
- Chat, TX R+75
- Lovelace, TX R+72
- Carls Corner, TX R+69
- Bynum, TX R+74
- Peoria, TX R+76
- Vaughan, TX R+74
- Woodbury, TX R+76
- Brandon, TX R+74
- Abbott, TX R+73
Cities with Similar Populations
- Laurel, FL R+20
- Canton, TX R+71
- St. Pauls, NC R+17
- Oak Grove, KY R+15
- St. Joseph, MN R+19
- Watford City, ND R+69
- Bee Cave, TX D+14
- Effort, PA R+18
- Laughlin, NV R+21
- Princeton, NC R+48
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.