Newcastle is a Republican stronghold. About 12% of voters here vote Democratic and 88% Republican.
About 40% of adults in Newcastle typically vote, below the U.S. average of about 62%. Among adults in Newcastle, ~5% vote Democratic, ~36% Republican, and ~59% don't vote. The map below shows estimated turnout by block group.
How Newcastle compares
Among cities within 25 miles, Newcastle leans more Republican than 8 of 11 neighbors.
Newcastle runs about 54 points more Republican than Utah as a whole.
Why Newcastle leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Newcastle. The lean here lands roughly where demographic data alone would predict.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Newcastle, UT sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Newcastle looks the way it does
Crowded housing lines up with lower turnout. About 4% of homes in Newcastle have more than one occupant per room, above 85% of cities. Strong routine healthcare access lines up with higher turnout, and Newcastle sits in the top quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Beryl, UT R+77
- Enterprise, UT R+75
- Central, UT R+68
- Modena, UT R+78
- Pine Valley, UT R+66
- Lund, UT R+61
- New Harmony, UT R+68
- Kanarraville, UT R+68
- Pintura, UT R+52
Cities with Similar Populations
- Expose, MS R+60
- Jeff, KY R+66
- Fairfield, ID R+72
- Farnham, NY R+31
- Dougherty, OK R+61
- Magnolia, IL R+39
- Putnamville, PA R+46
- Haverhill, KS R+56
- Silesia, MT R+64
- Swansonville, VA R+38
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Utah Lieutenant Governor's Office, 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.