Smithfield, UT Political Map | Democrat & Republican Areas in Smithfield

By the BestNeighborhood data science team. Last updated May 2026.

Smithfield is a Republican stronghold. About 24% of voters here vote Democratic and 76% Republican.

 

About 69% of adults in Smithfield typically vote, above the U.S. average of about 62%. Among adults in Smithfield, ~17% vote Democratic, ~52% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.

How Smithfield compares

Among cities within 25 miles, Smithfield leans more Republican than 9 of 48 neighbors.

Smithfield runs about 30 points more Republican than Utah as a whole.

Politics vary noticeably by neighborhood within Smithfield. The west side is the most Republican-leaning (R+64) and the east side is the least Republican-leaning (R+42), a spread of about 22 points.

Why Smithfield 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 Smithfield, not a ranked or complete list of what matters most.

Smithfield votes Republican even though it is densely developed (about 28%, about 8 points below the U.S. average of 36%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 89% of households in Smithfield are family households, in the top fraction of cities.

Preventive-care access and voter turnout

Places with strong routine preventive-care access tend to turn out at a higher rate; Smithfield, UT 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 Smithfield looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Smithfield 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.

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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.