Dewey leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 87% of adults in Dewey typically vote, above the U.S. average of about 62%. Among adults in Dewey, ~30% vote Democratic, ~58% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How Dewey compares
Among cities within 25 miles, Dewey leans more Republican than 12 of 26 neighbors.
Dewey runs about 27 points more Republican than Arizona as a whole.
Politics vary noticeably by neighborhood within Dewey. The southeast side is the most Republican-leaning (R+43) and the north side is the least Republican-leaning (R+20), a spread of about 23 points.
Why Dewey 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 Dewey, not a ranked or complete list of what matters most.
Dewey votes Republican even though it is densely developed (about 31%, modestly below the Arizona average of 39%). Here an older population outweighs the Democratic lean that density usually predicts.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Dewey, AZ sits above the national average on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Dewey looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in Dewey have completed high school, about 9 points above the Arizona average of 87%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Humboldt, AZ R+48
- Dewey-Humboldt, AZ R+47
- Prescott Valley, AZ R+25
- Forbing Park, AZ R+22
- Horse Thief, AZ R+56
- Poland Junction, AZ R+45
- Prescott, AZ R+8
- Jerome, AZ R+31
- Mayer, AZ R+43
- Miller Valley, AZ R+21
Cities with Similar Populations
- Montvale, NJ R+8
- North Madison, OH R+24
- Central Valley, NY R+11
- Shepherdstown, WV R+2
- St. Francis, MN R+35
- Harold, FL R+43
- North Sarasota, FL D+10
- Monee, IL R+2
- Farmersville, TX R+58
- Milton, WV R+50
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Sources and methodology
Precinct-level voting records used to fit the model come from Arizona 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.