83460 leans Republican by roughly 24 points: about 38% of voters vote Democratic and 62% Republican.
About 23% of adults in 83460 typically vote, below the U.S. average of about 62%. Among adults in 83460, ~9% vote Democratic, ~15% Republican, and ~76% don't vote. The map below shows estimated turnout by block group.
How 83460 compares
Among zip codes within 15 miles, 83460 is the least Republican-leaning.
83460 runs about 12 points more Democratic than Idaho as a whole.
Politics vary noticeably by block within 83460. The west side is the most Republican-leaning (R+25) and the northeast side is the least Republican-leaning (R+5), a spread of about 20 points.
Why 83460 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 83460, not a ranked or complete list of what matters most.
83460 votes Republican even though it is densely developed (more than 99%, far above the Idaho average of 18%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Low college attainment predicts Republican voting, and 83460 sits in the bottom quarter (about 11%, below 93% of zip codes).
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 83460, ID sits in the bottom tenth 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 83460 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 83460 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 43%, about 22 points below the Idaho average of 65%. Renters vote less often than owners, and more than 99% of households in 83460 rent, compared to around 22% in nearby zip codes. High food insecurity lines up with lower turnout, and about 34% of adults in 83460 report food insecurity, above 96% of zip codes. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.