Jay County is a Republican stronghold. About 21% of voters here vote Democratic and 79% Republican.
About 68% of adults in Jay County typically vote, above the U.S. average of about 62%. Among adults in Jay County, ~14% vote Democratic, ~54% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How Jay County compares
Among counties within 50 miles, Jay County leans more Republican than 11 of 16 neighbors.
Jay County runs about 39 points more Republican than Indiana as a whole.
Politics vary noticeably by city within Jay County. The northeast side is the most Republican-leaning (R+71) and the southwest side is the least Republican-leaning (R+52), a spread of about 19 points.
Why Jay 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 Jay County, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In Jay County, about 93% of residents are non-Hispanic white, about 20 points above the U.S. average of 72%; about 13% of adults hold a bachelor's degree, about 9 points below the Indiana average of 22%.
Renting and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Jay County, IN sits in the bottom quarter nationally on this measure.
Why turnout in Jay County looks the way it does
Homeowners vote more often than renters. About 81% of households in Jay County own their home, about 6 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Blackford County, IN R+49
- Randolph County, IN R+55
- Adams County, IN R+60
- Mercer County, OH R+65
- Wells County, IN R+56
- Delaware County, IN R+11
- Darke County, OH R+61
- Grant County, IN R+34
- Van Wert County, OH R+56
- Huntington County, IN R+45
Counties with Similar Populations
- Fulton County, IN R+51
- Henry County, IA R+31
- Woodward County, OK R+63
- Lincoln County, WV R+65
- Greene County, NC R+15
- Uinta County, WY R+62
- Breckinridge County, KY R+58
- Carbon County, UT R+56
- Greene County, VA R+26
- Colorado County, TX R+42
Sources and methodology
Precinct-level voting records used to fit the model come from Indiana 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.