Martin County leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About 84% of adults in Martin County typically vote, above the U.S. average of about 62%. Among adults in Martin County, ~26% vote Democratic, ~58% Republican, and ~16% don't vote. The map below shows estimated turnout by block group.
How Martin County compares
Among counties within 50 miles, Martin County leans more Republican than 9 of 13 neighbors.
Martin County runs about 42 points more Republican than Minnesota as a whole. Minnesota leans Democratic overall, while Martin County is one of the few Republican-leaning pockets.
Politics vary noticeably by city within Martin County. The southwest side is the most Republican-leaning (R+54) and the south side is the least Republican-leaning (R+30), a spread of about 24 points.
Why Martin 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 Martin County, not a ranked or complete list of what matters most.
Martin County votes against the grain of Minnesota. Minnesota leans Democratic overall, while Martin County runs about 42 points more Republican.
High-school completion and voter turnout
Places with high-school-completion-heavy adults tend to turn out at a higher rate; Martin County, MN sits in the top tenth nationally on this measure.
Why turnout in Martin County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Martin 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 64%, above 75% of counties. High high-school completion lines up with higher turnout, and about 95% of adults in Martin County have completed high school, above 92% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Emmet County, IA R+37
- Watonwan County, MN R+29
- Faribault County, MN R+38
- Jackson County, MN R+42
- Cottonwood County, MN R+46
- Dickinson County, IA R+34
- Kossuth County, IA R+45
- Palo Alto County, IA R+44
- Blue Earth County, MN R+6
- Brown County, MN R+37
Counties with Similar Populations
- Richland Parish, LA R+38
- Washington County, GA D+3
- Hempstead County, AR R+18
- Winneshiek County, IA R+13
- DeKalb County, TN R+63
- Montague County, TX R+70
- Davison County, SD R+43
- Morgan County, GA R+45
- Calhoun County, TX R+37
- Dodge County, GA R+43
Sources and methodology
Precinct-level voting records used to fit the model come from Minnesota 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.