Dover leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About 95% of adults in Dover typically vote, above the U.S. average of about 62%. Among adults in Dover, ~37% vote Democratic, ~58% Republican, and ~5% don't vote. The map below shows estimated turnout by block group.
How Dover compares
Among cities within 25 miles, Dover is the least Republican-leaning.
Dover runs about 15 points more Democratic than Idaho as a whole.
Politics vary noticeably by neighborhood within Dover. The southwest side is the most Republican-leaning (R+53) and the east side is the least Republican-leaning (R+3), a spread of about 50 points.
Why Dover 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 Dover, not a ranked or complete list of what matters most.
Dover votes Republican even though it is densely developed (about 21%, about 15 points below the U.S. average of 36%). Here an older population outweighs the Democratic lean that density usually predicts.
Food insecurity and voter turnout
Places with low food insecurity tend to turn out at a higher rate; Dover, ID sits in the bottom quarter nationally on this measure. Food insecurity does not directly drive turnout; it reflects economic hardship, which lines up with lower voting.
Why turnout in Dover looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Dover 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 70%, about 10 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Sagle, ID R+50
- Sandpoint, ID R+29
- Ponderay, ID R+38
- Westmond, ID R+46
- Kootenai, ID R+44
- Colburn, ID R+37
- Laclede, ID R+53
- Talache, ID R+43
- Sunnyside, ID R+41
- Cocolalla, ID R+57
Cities with Similar Populations
- Blossburg, PA R+48
- Wells, TX R+74
- Birchwood, WI R+32
- Kinston, AL R+85
- Lake Toxaway, NC R+40
- Minneota, MN R+47
- Emmett, MI R+51
- Rosebud, TX R+37
- Pearl City, IL R+43
- North Hampton, OH R+52
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Sources and methodology
Precinct-level voting records used to fit the model come from Idaho 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.