Casselton leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.
About 92% of adults in Casselton typically vote, above the U.S. average of about 62%. Among adults in Casselton, ~27% vote Democratic, ~65% Republican, and ~8% don't vote. The map below shows estimated turnout by block group.
How Casselton compares
Among cities within 25 miles, Casselton leans more Republican than 13 of 35 neighbors.
Casselton runs about 5 points more Republican than North Dakota as a whole.
Why Casselton 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 Casselton, not a ranked or complete list of what matters most.
Casselton votes Republican even though it is densely developed (about 22%, modestly above the North Dakota average of 12%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Casselton, ND 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 Casselton looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Casselton 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 73%, about 13 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Mapleton, ND R+41
- Wheatland, ND R+49
- Amenia, ND R+50
- Lynchburg, ND R+48
- Prosper, ND R+43
- Absaraka, ND R+46
- Chaffee, ND R+44
- Davenport, ND R+46
- Arthur, ND R+45
- West Fargo, ND R+15
Cities with Similar Populations
- Westworth Village, TX R+27
- Lyndon Station, WI R+34
- Elliston, VA R+40
- Gerald, MO R+62
- Lake Success, NY D+11
- La Grange, CA R+45
- New Milford, PA R+49
- Harlem, MT D+20
- Albrightsville, PA R+21
- Roseland, LA D+6
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Sources and methodology
Precinct-level voting records used to fit the model come from North 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.