Harrison leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 92% of adults in Harrison typically vote, above the U.S. average of about 62%. Among adults in Harrison, ~26% vote Democratic, ~66% Republican, and ~8% don't vote. The map below shows estimated turnout by block group.
How Harrison compares
Among cities within 25 miles, Harrison leans more Republican than 12 of 41 neighbors.
Harrison runs about 7 points more Republican than Idaho as a whole.
Politics vary noticeably by neighborhood within Harrison. The southeast side is the most Republican-leaning (R+59) and the west side is the least Republican-leaning (R+36), a spread of about 24 points.
Why Harrison leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Harrison. The lean here lands roughly where demographic data alone would predict.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Harrison, ID sits in the top quarter nationally 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 Harrison looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Harrison 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%. Homeowners vote more often than renters, and about 90% of households in Harrison own their home, about 15 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Rockford Bay, ID R+46
- Medimont, ID R+57
- Worley, ID R+34
- Fernan Lake Village, ID R+28
- Rocky Point, ID R+60
- Huetter, ID R+44
- Coeur d'Alene, ID R+31
- Parkline, ID R+57
- McGuire, ID R+61
Cities with Similar Populations
- Wysox, PA R+56
- Washburn, MO R+71
- Sagaponack, NY D+30
- Slanesville, WV R+59
- Fayetteville, TX R+71
- Ramah, CO R+60
- Qulin, MO R+70
- Bear River City, UT R+73
- Progress, NY R+36
- Okolona, TN R+59
All Local Stats
Home Services
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.