San Haven leans heavily Democratic by roughly 38 points: about 69% of voters vote Democratic and 31% Republican.
About 51% of adults in San Haven typically vote, below the U.S. average of about 62%. Among adults in San Haven, ~35% vote Democratic, ~16% Republican, and ~49% don't vote. The map below shows estimated turnout by block group.
How San Haven compares
Among cities within 25 miles, San Haven leans more Democratic than 13 of 19 neighbors.
San Haven runs about 75 points more Democratic than North Dakota as a whole. North Dakota leans Republican overall, while San Haven is one of the few Democratic-leaning pockets.
Politics vary noticeably by neighborhood within San Haven. The east side runs the most Democratic (D+46) and the west side runs the most Republican (R+50), a spread of about 96 points.
Why San Haven 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 San Haven, not a ranked or complete list of what matters most.
San Haven votes against the grain of North Dakota. North Dakota leans Republican overall, while San Haven runs about 75 points more Democratic. A high never-married share predicts Democratic voting, and about 50% of adults in San Haven have never been married, above 98% of cities.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; San Haven, ND sits in the bottom 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 San Haven looks the way it does
Renters vote less often than owners. About 42% of households in San Haven rent, about 17 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 29% of adults in San Haven report food insecurity, above 95% of cities. High-crime urban areas turn out at lower rates, and San Haven sits in the top 15% on a violent-crime measure. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- East Dunseith, ND D+46
- Dunseith, ND D+42
- Thorne, ND R+8
- Kelvin, ND D+13
- Belcourt, ND D+51
- Overly, ND R+41
- Shell Valley, ND D+64
- Rolette, ND R+26
- Agate, ND D+47
- St. John, ND D+35
Cities with Similar Populations
- Safe, MO R+65
- Log Cabin, TX R+63
- Lewisburg, MS R+68
- Selkirk, MI R+45
- Canton, OK R+74
- Lost Nation, IA R+43
- Fedhaven, FL R+62
- Shamrock, WI R+40
- Forest Lake, PA R+50
- Somerset, VA R+32
All Local Stats
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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.