Teton County leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About 88% of adults in Teton County typically vote, above the U.S. average of about 62%. Among adults in Teton County, ~34% vote Democratic, ~54% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How Teton County compares
Among counties within 50 miles, Teton County leans more Republican than 1 of 5 neighbors.
Teton County runs about 15 points more Democratic than Idaho as a whole.
Politics vary noticeably by city within Teton County. The northwest side is the most Republican-leaning (R+42) and the southeast side is the least Republican-leaning (R+13), a spread of about 29 points.
Why Teton County leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Teton County. The lean here lands roughly where demographic data alone would predict.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Teton County, ID sits in the top tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Teton County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Teton County is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 69%, about 9 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 84% of households in Teton County own their home, above 93% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Teton County, WY D+16
- Fremont County, ID R+66
- Madison County, ID R+35
- Jefferson County, ID R+71
- Bonneville County, ID R+43
- Clark County, ID R+65
- Bingham County, ID R+54
- Lincoln County, WY R+66
- Caribou County, ID R+73
- Sublette County, WY R+58
Counties with Similar Populations
- Iron County, MI R+24
- Magoffin County, KY R+67
- Barton County, MO R+65
- Jackson County, TN R+65
- Ward County, TX R+56
- Trousdale County, TN R+59
- Ramsey County, ND R+30
- Cherokee County, IA R+42
- Conecuh County, AL R+7
- Red River County, TX R+51
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.