83223 is a Republican stronghold. About 15% of voters here vote Democratic and 85% Republican.
About 71% of adults in 83223 typically vote, above the U.S. average of about 62%. Among adults in 83223, ~11% vote Democratic, ~60% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How 83223 compares
Among zip codes within 15 miles, 83223 leans more Republican than 1 of 6 neighbors.
83223 runs about 34 points more Republican than Idaho as a whole.
Why 83223 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 83223, not a ranked or complete list of what matters most.
Rural areas with a high white share vote Republican. 83223 sits in the bottom quarter on density and about 96% of residents are non-Hispanic white, about 14 points above the Idaho average of 83%. A high family-household share predicts Republican voting, and about 79% of households in 83223 are family households, above 89% of zip codes.
Population density and Republican lean
Places with low population density tend to lean Republican; 83223, ID sits in the bottom tenth nationally on this measure.
Why turnout in 83223 looks the way it does
Homeowners vote more often than renters. About 95% of households in 83223 own their home, about 15 points above the Idaho average of 79%. 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.