Perth leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About 66% of adults in Perth typically vote, near the U.S. average of about 62%. Among adults in Perth, ~22% vote Democratic, ~44% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.
How Perth compares
Among cities within 25 miles, Perth leans more Republican than 9 of 20 neighbors.
Politically, Perth sits close to the rest of North Dakota.
Politics vary noticeably by neighborhood within Perth. The southeast side is the most Republican-leaning (R+39) and the southwest side is the least Republican-leaning (R+22), a spread of about 17 points.
Why Perth 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 Perth, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 3% of residents in Perth live in densely developed areas, about 8 points below the North Dakota average of 12%.
Population density, never-married share, and Republican lean
Places that combine low population density and a never-married-heavy adult population tend to lean Republican, as Perth, ND does.
Why turnout in Perth looks the way it does
Turnout in Perth 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
- Rocklake, ND R+39
- Bisbee, ND R+40
- Rolla, ND D+7
- Mylo, ND R+22
- Green Acres, ND D+67
- Hansboro, ND R+37
- Agate, ND D+47
- Shell Valley, ND D+64
- Belcourt, ND D+51
Cities with Similar Populations
- Wolf Lick, KY R+65
- Sunnyside, MS Even
- Eckman, ND R+67
- Uniontown, IL R+47
- Logton, AL R+37
- Lolo Hot Springs, MT R+20
- Hagaman, IL R+56
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.