Hillsboro leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 77% of adults in Hillsboro typically vote, above the U.S. average of about 62%. Among adults in Hillsboro, ~25% vote Democratic, ~52% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How Hillsboro compares
Among cities within 25 miles, Hillsboro leans more Republican than 3 of 25 neighbors.
Politically, Hillsboro sits close to the rest of North Dakota.
Why Hillsboro 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 Hillsboro, not a ranked or complete list of what matters most.
Hillsboro votes Republican even though it is densely developed (about 37%, well above the North Dakota average of 12%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Park access and Republican lean
Places with low park coverage tend to lean Republican; Hillsboro, ND sits in the bottom tenth nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in Hillsboro looks the way it does
Areas with high high-school completion turn out at higher rates. About 97% of adults in Hillsboro have completed high school, about 7 points above the U.S. average of 90%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Taft, ND R+39
- Kelso, ND R+38
- Cummings, ND R+39
- Caledonia, ND R+39
- Blanchard, ND R+39
- Grandin, ND R+42
- Halstad, MN R+42
- Shelly, MN R+42
- Buxton, ND R+41
- Mayville, ND R+33
Cities with Similar Populations
- Paulina, LA R+77
- Lockney, TX R+54
- Skidmore, TX R+44
- Florahome, FL R+73
- Salem, SD R+51
- Groveland, IL R+34
- Rodney, MI R+37
- Eldred, PA R+57
- Cleveland, MN R+36
- Eastgate, TX R+62
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.