Sisco Heights leans Republican by roughly 20 points: about 40% of voters vote Democratic and 60% Republican.
About 94% of adults in Sisco Heights typically vote, above the U.S. average of about 62%. Among adults in Sisco Heights, ~38% vote Democratic, ~57% Republican, and ~5% don't vote. The map below shows estimated turnout by block group.
How Sisco Heights compares
Among cities within 25 miles, Sisco Heights leans more Republican than 47 of 61 neighbors.
Sisco Heights runs about 38 points more Republican than Washington as a whole. Washington leans Democratic overall, while Sisco Heights is one of the few Republican-leaning pockets.
Why Sisco Heights 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 Sisco Heights, not a ranked or complete list of what matters most.
Sisco Heights votes against the grain of Washington. Washington leans Democratic overall, while Sisco Heights runs about 38 points more Republican. Dense places usually vote Democratic, but Sisco Heights runs against that pattern. A high family-household share predicts Republican voting, and about 75% of households in Sisco Heights are family households, above 76% of cities.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Sisco Heights, WA sits above the national average on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Sisco Heights looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Sisco Heights 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 69%, about 9 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Marysville, WA Even
- Arlington, WA R+16
- Granite Falls, WA R+17
- Lake Bosworth, WA R+20
- Lake Stevens, WA R+4
- Lochsloy, WA R+21
- Tulalip, WA R+14
- Trafton, WA R+33
- Cavalero, WA R+4
- McKees Beach, WA R+16
Cities with Similar Populations
- Oskar, MI R+19
- Red Hill, KY R+60
- Red Rock, OK R+37
- Red River, WI R+41
- Max, ND R+63
- Waterville, IA R+39
- Ellisboro, NC R+59
- Platter, OK R+64
- Annapolis, MO R+63
- Bird City, KS R+76
Sources and methodology
Precinct-level voting records used to fit the model come from Washington 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.