Porterfield is a Republican stronghold. About 16% of voters here vote Democratic and 84% Republican.
About 71% of adults in Porterfield typically vote, above the U.S. average of about 62%. Among adults in Porterfield, ~11% vote Democratic, ~60% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How Porterfield compares
Among cities within 25 miles, Porterfield leans more Republican than 44 of 61 neighbors.
Porterfield runs about 38 points more Republican than Tennessee as a whole.
Why Porterfield leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Porterfield. 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; Porterfield, TN sits below the national average 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 Porterfield looks the way it does
Limited routine healthcare access lines up with lower turnout, and Porterfield sits in the bottom quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Milton, TN R+57
- Auburntown, TN R+66
- Pleasant Ridge, TN R+63
- Readyville, TN R+65
- Woodbury, TN R+68
- Kittrell, TN R+59
- Greenvale, TN R+66
- Lascassas, TN R+57
- Center Hill, TN R+74
- Liberty, TN R+67
Cities with Similar Populations
- New Colony, TX R+62
- Little Sioux, IA R+45
- Partello, MI R+47
- Staffordsville, VA R+64
- Glenns, VA R+43
- Welda, KS R+66
- Deer Harbor, WA D+67
- Landisburg, WV R+62
- St. Pats, KS R+58
- Elmdale, IN R+62
Sources and methodology
Precinct-level voting records used to fit the model come from Tennessee Secretary of State, Division of 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.