Junius is a Republican stronghold. About 25% of voters here vote Democratic and 75% Republican.
About 61% of adults in Junius typically vote, near the U.S. average of about 62%. Among adults in Junius, ~15% vote Democratic, ~46% Republican, and ~39% don't vote. The map below shows estimated turnout by block group.
How Junius compares
Among cities within 25 miles, Junius leans more Republican than 14 of 28 neighbors.
Junius runs about 21 points more Republican than South Dakota as a whole.
Why Junius leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Junius. The lean here lands roughly where demographic data alone would predict.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Junius, SD sits in the bottom quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Junius looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Junius 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 71%, about 11 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Prairie Village, SD R+49
- Madison, SD R+33
- Ramona, SD R+50
- Winfred, SD R+52
- Orland, SD R+51
- Wentworth, SD R+45
- Smiths Park, SD R+47
- Howard, SD R+49
- Franklin, SD R+47
- Oldham, SD R+47
Cities with Similar Populations
- Lexsy, GA R+55
- Westbend, KY R+60
- Spanglin, KY R+64
- Hillemann, AR R+69
- West Hawley, MA D+11
- Sylvester, TX R+76
- Erie, ND R+44
- Rutland, KY R+62
- Clover Lick, WV R+51
- Kokhanok, AK D+13
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from South Dakota 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.