Elk River, ID Political Map | Democrat & Republican Areas in Elk River

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

Elk River is a Republican stronghold. About 19% of voters here vote Democratic and 81% Republican.

 

About 72% of adults in Elk River typically vote, above the U.S. average of about 62%. Among adults in Elk River, ~14% vote Democratic, ~58% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.

How Elk River compares

Among cities within 25 miles, Elk River leans more Republican than 7 of 14 neighbors.

Elk River runs about 25 points more Republican than Idaho as a whole.

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

Rural areas vote Republican. About 3% of residents in Elk River live in densely developed areas, about 15 points below the Idaho average of 18%.

Population density and Republican lean

Places with low population density tend to lean Republican; Elk River, ID sits in the bottom tenth nationally on this measure.

Why turnout in Elk River looks the way it does

Homeowners vote more often than renters. About 95% of households in Elk River own their home, about 16 points above the Idaho average of 79%. High high-school completion lines up with higher turnout, and about 99% of adults in Elk River have completed high school, above 98% of cities. 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.