Aroostook County leans heavily Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican. These figures are model estimates: Maine 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 77% of adults in Aroostook County typically vote, above the U.S. average of about 62%. Among adults in Aroostook County, ~27% vote Democratic, ~50% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How Aroostook County compares
Aroostook County runs about 37 points more Republican than Maine as a whole. Maine leans Democratic overall, while Aroostook County is one of the few Republican-leaning pockets.
Politics vary noticeably by city within Aroostook County. The southwest side is the most Republican-leaning (R+46) and the northeast side is the least Republican-leaning (R+25), a spread of about 21 points.
Why Aroostook County 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 Aroostook County, not a ranked or complete list of what matters most.
Aroostook County votes against the grain of Maine. Maine leans Democratic overall, while Aroostook County runs about 37 points more Republican.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Aroostook County, ME sits below the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Aroostook County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Aroostook County 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 57%, below 65% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Piscataquis County, ME R+34
- Penobscot County, ME R+7
- Washington County, ME R+24
- Somerset County, ME R+29
- Hancock County, ME D+5
- Waldo County, ME R+7
- Franklin County, ME R+18
- Kennebec County, ME R+7
- Knox County, ME D+7
- Lincoln County, ME Even
Counties with Similar Populations
- Rice County, MN Even
- Williamson County, IL R+36
- Jones County, MS R+32
- Jefferson County, AR D+22
- St. Francois County, MO R+48
- Spalding County, GA R+8
- Butler County, KS R+41
- Ionia County, MI R+30
- Grant County, IN R+34
- Laurens County, SC R+35
Sources and methodology
Precinct-level voting records used to fit the model come from Maine Secretary of State, Bureau of Corporations Elections and Commissions, 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. ME 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.