Garden Valley leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 80% of adults in Garden Valley typically vote, above the U.S. average of about 62%. Among adults in Garden Valley, ~24% vote Democratic, ~56% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How Garden Valley compares
Among cities within 25 miles, Garden Valley is the least Republican-leaning.
Garden Valley runs about 4 points more Republican than Idaho as a whole.
Politics vary noticeably by neighborhood within Garden Valley. The southeast side is the most Republican-leaning (R+51) and the northwest side is the least Republican-leaning (R+37), a spread of about 15 points.
Why Garden Valley 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 Garden Valley, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 4% of residents in Garden Valley live in densely developed areas, about 14 points below the Idaho average of 18%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Garden Valley, 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 Garden Valley looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Garden Valley 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 91% of households in Garden Valley own their home, about 16 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Crouch, ID R+41
- Banks, ID R+55
- Smiths Ferry, ID R+48
- Pioneerville, ID R+51
- Placerville, ID R+61
- Ola, ID R+63
- Horseshoe Bend, ID R+60
- Sweet, ID R+63
- Montour, ID R+62
- Idaho City, ID R+54
Cities with Similar Populations
- Sterling, OK R+68
- Washington, OK R+65
- Joaquin, TX R+69
- China Lake Acres, CA R+39
- Rural Valley, PA R+56
- Oriskany Falls, NY R+39
- Emmett, MI R+51
- Minneota, MN R+47
- Bayou Blue, LA R+75
- Stephens, AR R+14
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.