Turtle Ridge leans slightly Republican by roughly 6 points: about 47% of voters vote Democratic and 53% Republican.
About 75% of adults in Turtle Ridge typically vote, above the U.S. average of about 62%. Among adults in Turtle Ridge, ~35% vote Democratic, ~40% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.
How Turtle Ridge compares
Among neighborhoods within 5 miles, Turtle Ridge is the most Republican-leaning.
Turtle Ridge runs about 26 points more Republican than California as a whole. California leans Democratic overall, while Turtle Ridge is one of the few Republican-leaning pockets.
Politics vary noticeably by block within Turtle Ridge. The northwest side runs the most Democratic (D+3) and the southeast side runs the most Republican (R+9), a spread of about 12 points.
Why Turtle Ridge leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Turtle Ridge, not a ranked or complete list of what matters most.
Turtle Ridge votes against the grain of California. California leans Democratic overall, while Turtle Ridge runs about 26 points more Republican.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Turtle Ridge, Irvine, CA 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 Turtle Ridge looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Turtle Ridge 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 76%, about 16 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and more than 99% of adults in Turtle Ridge have completed high school, above 96% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Turtle Rock, Irvine, CA D+11
- UC Irvine, Irvine, CA D+70
- University Town Center, Irvine, CA D+33
- University Park, Irvine, CA D+16
- Rancho San Joaquin, Irvine, CA D+33
- Quail Hill, Irvine, CA D+15
- Oak Creek, Irvine, CA D+12
- Woodbridge, Irvine, CA D+9
- Business District, Irvine, CA D+16
- Irvine Business Complex, Irvine, CA D+11
Neighborhoods with Similar Populations
- West Hills, Huntington, NY R+4
- Downtown Ashtabula, Ashtabula, OH Even
- Parkside, Camden, NJ D+79
- Alessandro, San Bernardino, CA D+29
- U of O Campus, Eugene, OR D+74
- Newell South, Charlotte, NC D+44
- Hallsville, Manchester, NH D+21
- Cimarron, Rochester, MN D+25
- Triangle, Buffalo, NY D+12
- Northgate, Seattle, WA D+65
Sources and methodology
Precinct-level voting records used to fit the model come from California 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.