Minidoka County is a Republican stronghold. About 21% of voters here vote Democratic and 79% Republican.
About 68% of adults in Minidoka County typically vote, above the U.S. average of about 62%. Among adults in Minidoka County, ~14% vote Democratic, ~54% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How Minidoka County compares
Among counties within 50 miles, Minidoka County leans more Republican than 3 of 5 neighbors.
Minidoka County runs about 21 points more Republican than Idaho as a whole.
Politics vary noticeably by city within Minidoka County. The northwest side is the most Republican-leaning (R+74) and the east side is the least Republican-leaning (R+50), a spread of about 24 points.
Why Minidoka 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 Minidoka County, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 72% of households in Minidoka County are family households, about 5 points above the U.S. average of 67%.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Minidoka County, ID sits in the bottom tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Minidoka County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Minidoka 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
- Cassia County, ID R+63
- Jerome County, ID R+48
- Lincoln County, ID R+63
- Twin Falls County, ID R+45
- Power County, ID R+46
- Gooding County, ID R+54
- Bannock County, ID R+25
- Blaine County, ID D+21
- Camas County, ID R+72
- Butte County, ID R+75
Counties with Similar Populations
- Lampasas County, TX R+55
- Gaines County, TX R+70
- Grenada County, MS R+15
- McDuffie County, GA R+14
- Stutsman County, ND R+34
- Dakota County, NE R+15
- Scott County, VA R+70
- Hertford County, NC D+25
- Letcher County, KY R+65
- Hockley County, TX R+63
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.