Franklin is a Republican stronghold. About 11% of voters here vote Democratic and 89% Republican.
About 70% of adults in Franklin typically vote, above the U.S. average of about 62%. Among adults in Franklin, ~8% vote Democratic, ~62% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How Franklin compares
Among cities within 25 miles, Franklin leans more Republican than 38 of 47 neighbors.
Franklin runs about 41 points more Republican than Idaho as a whole.
Why Franklin 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 Franklin, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 3% of residents in Franklin live in densely developed areas, about 15 points below the Idaho average of 18%. A high family-household share predicts Republican voting, and about 83% of households in Franklin are family households, above 95% of cities.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Franklin, ID sits in the bottom quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Franklin looks the way it does
Areas with high high-school completion turn out at higher rates. About 97% of adults in Franklin have completed high school, about 6 points above the Idaho average of 91%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Lewiston, UT R+73
- Mapleton, ID R+79
- Whitney, ID R+77
- Preston, ID R+75
- Richmond, UT R+67
- Glendale, ID R+78
- Cornish, UT R+75
- Weston, ID R+82
- Trenton, UT R+71
- Dayton, ID R+81
Cities with Similar Populations
- Mabscott, WV R+52
- Darrow, LA D+10
- Windsor Mills, OH R+55
- Pleasantville, PA R+53
- Southmayd, TX R+65
- Converse, LA R+77
- Williamsport, OH R+56
- Sebago, ME R+22
- Solway, MN R+45
- Rainbow, TX R+66
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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.