Atchison leans Republican by roughly 26 points: about 37% of voters vote Democratic and 63% Republican.
About 65% of adults in Atchison typically vote, near the U.S. average of about 62%. Among adults in Atchison, ~24% vote Democratic, ~41% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How Atchison compares
Among cities within 25 miles, Atchison leans more Republican than 4 of 58 neighbors.
Atchison runs about 10 points more Republican than Kansas as a whole.
Politics vary noticeably by neighborhood within Atchison. The southwest side is the most Republican-leaning (R+49) and the east side is the least Republican-leaning (R+16), a spread of about 32 points.
Why Atchison leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Atchison, not a ranked or complete list of what matters most.
Atchison votes Republican even though it is densely developed (about 48%, well above the Kansas average of 19%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Atchison, KS sits in the top quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Atchison looks the way it does
Turnout in Atchison sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Lewis and Clark Village, MO R+62
- St. Pats, KS R+58
- Rushville, MO R+59
- Doniphan, KS R+62
- Cummings, KS R+58
- Iatan, MO R+41
- Lancaster, KS R+61
- Potter, KS R+57
- Farmington, KS R+57
Cities with Similar Populations
- Gladewater, TX R+56
- Salem, IN R+53
- Tyngsboro, MA Even
- Lakewood Park, FL R+25
- Jefferson Hills, PA R+20
- Atco, NJ R+8
- Newport, MI R+30
- Larkspur, CA D+58
- Soquel, CA D+44
- Montgomery, OH D+11
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Kansas 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.