Matanuska-Susitna Borough leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican. These figures are model estimates: Alaska did not have precinct-level voting records available for training, so the numbers above come from demographic and health features rather than local ground truth.
About 72% of adults in Matanuska-Susitna Borough typically vote, above the U.S. average of about 62%. Among adults in Matanuska-Susitna Borough, ~24% vote Democratic, ~48% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How Matanuska-Susitna Borough compares
Matanuska-Susitna Borough runs about 20 points more Republican than Alaska as a whole.
Politics vary noticeably by city within Matanuska-Susitna Borough. The west side is the most Republican-leaning (R+45) and the east side is the least Republican-leaning (R+27), a spread of about 18 points.
Why Matanuska-Susitna Borough leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Matanuska-Susitna Borough, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 70% of households in Matanuska-Susitna Borough are family households, above 80% of counties.
High-school completion and voter turnout
Places with high-school-completion-heavy adults tend to turn out at a higher rate; Matanuska-Susitna Borough, AK sits in the top quarter nationally on this measure.
Why turnout in Matanuska-Susitna Borough looks the way it does
Areas with high high-school completion turn out at higher rates. About 94% of adults in Matanuska-Susitna Borough have completed high school, above 86% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Anchorage Municipality, AK D+20
- Kenai Peninsula Borough, AK R+27
- Denali Borough, AK R+37
- Southeast Fairbanks Census Area, AK R+39
- Fairbanks North Star Borough, AK R+9
- Yukon-Koyukuk Census Area, AK D+17
- Kodiak Island Borough, AK R+16
- Lake and Peninsula Borough, AK D+13
- Bristol Bay Borough, AK Even
- Yakutat City and Borough, AK Even
Counties with Similar Populations
- Houston County, AL R+30
- Carver County, MN R+8
- Platte County, MO R+5
- Navajo County, AZ R+3
- Kankakee County, IL R+9
- Walworth County, WI R+17
- Yamhill County, OR R+5
- Rockwall County, TX R+35
- Cass County, MO R+32
- Vigo County, IN R+12
Sources and methodology
Precinct-level voting records used to fit the model come from Alaska Division of 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. AK did not have precinct-level voting records available for training, so the figures here come from extrapolation across demographic, health, and land-use features rather than local ground truth. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.