Power County leans heavily Republican by roughly 46 points: about 27% of voters vote Democratic and 73% Republican.
About 68% of adults in Power County typically vote, above the U.S. average of about 62%. Among adults in Power County, ~18% vote Democratic, ~50% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How Power County compares
Among counties within 50 miles, Power County leans more Republican than 1 of 4 neighbors.
Power County runs about 10 points more Republican than Idaho as a whole.
Politics vary noticeably by city within Power County. The southeast side is the most Republican-leaning (R+73) and the northwest side is the least Republican-leaning (R+53), a spread of about 20 points.
Why Power County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Power County, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 15% of adults in Power County hold a bachelor's degree, about 11 points below the Idaho average of 26%. A high family-household share predicts Republican voting, and about 77% of households in Power County are family households, above 97% of counties.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Power County, ID sits in the bottom quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Power County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Power County 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.
Nearby Counties
- Bannock County, ID R+25
- Bingham County, ID R+54
- Minidoka County, ID R+58
- Oneida County, ID R+76
- Cassia County, ID R+63
- Caribou County, ID R+73
- Bonneville County, ID R+43
- Franklin County, ID R+77
- Butte County, ID R+75
- Jefferson County, ID R+71
Counties with Similar Populations
- Richardson County, NE R+55
- Pocahontas County, WV R+55
- San Augustine County, TX R+47
- Anderson County, KS R+58
- Searcy County, AR R+68
- Thomas County, KS R+67
- Taylor County, GA R+22
- Doddridge County, WV R+69
- Northwest Arctic Borough, AK D+17
- Winkler County, TX R+59
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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.