Rupert, ID Political Map | Democrat & Republican Areas in Rupert

By the BestNeighborhood data science team. Last updated May 2026.

Rupert is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.

 

About 67% of adults in Rupert typically vote, near the U.S. average of about 62%. Among adults in Rupert, ~15% vote Democratic, ~51% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.

How Rupert compares

Among cities within 25 miles, Rupert leans more Republican than 1 of 18 neighbors.

Rupert runs about 18 points more Republican than Idaho as a whole.

Politics vary noticeably by neighborhood within Rupert. The northwest side is the most Republican-leaning (R+74) and the south side is the least Republican-leaning (R+41), a spread of about 33 points.

Why Rupert 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 Rupert, not a ranked or complete list of what matters most.

Rupert votes Republican even though it is densely developed (about 39%, well 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 Rupert sits in the bottom quarter (about 13%, below 86% of cities).

Non-English at home and voter turnout

Places with a low non-English-at-home share tend to turn out at a higher rate; Rupert, ID sits in the bottom tenth nationally on this measure.

Why turnout in Rupert looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Rupert is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Learn more about the findings and methodology on the political spectrum map.

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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.