Sitka is a Republican stronghold. About 13% of voters here vote Democratic and 87% Republican.
About 53% of adults in Sitka typically vote, below the U.S. average of about 62%. Among adults in Sitka, ~7% vote Democratic, ~46% Republican, and ~47% don't vote. The map below shows estimated turnout by block group.
How Sitka compares
Among cities within 25 miles, Sitka leans more Republican than 7 of 12 neighbors.
Sitka runs about 44 points more Republican than South Dakota as a whole.
Politics vary noticeably by neighborhood within Sitka. The west side is the most Republican-leaning (R+79) and the northwest side is the least Republican-leaning (R+65), a spread of about 14 points.
Why Sitka 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 Sitka, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 3% of residents in Sitka live in densely developed areas, about 6 points below the South Dakota average of 9%.
Population density and Republican lean
Places with low population density tend to lean Republican; Sitka, SD sits in the bottom tenth nationally on this measure.
Why turnout in Sitka looks the way it does
Turnout in Sitka sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Glenham, SD R+78
- Selby, SD R+73
- Mound City, SD R+66
- Mobridge, SD R+41
- Java, SD R+78
- Akaska, SD R+79
- Herreid, SD R+67
- Wakpala, SD D+58
- Promise, SD D+50
- North Riverside, SD R+74
Cities with Similar Populations
- Sparksville, IN R+67
- Adamsville, AZ R+26
- Zion, LA R+90
- Sturges Corner, NY R+25
- East Freetown, NY R+48
- Tyndall AFB, FL R+31
- Pinhook Corner, OK R+57
- Tripoli, NY R+44
- Maple Grove, MI R+21
- Manzano, NM R+32
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Sources and methodology
Precinct-level voting records used to fit the model come from South Dakota 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.