Princeton, ID Political Map | Democrat & Republican Areas in Princeton

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

Princeton is a Republican stronghold. About 21% of voters here vote Democratic and 79% Republican.

 

About 76% of adults in Princeton typically vote, above the U.S. average of about 62%. Among adults in Princeton, ~16% vote Democratic, ~60% Republican, and ~24% don't vote. The map below shows estimated turnout by block group.

How Princeton compares

Among cities within 25 miles, Princeton leans more Republican than 22 of 26 neighbors.

Princeton runs about 22 points more Republican than Idaho as a whole.

Why Princeton leans the way it does

Density, race composition, education, and family structure all sit close to their national averages in Princeton. The lean here lands roughly where demographic data alone would predict.

Population density and Republican lean

Places with low population density tend to lean Republican; Princeton, ID sits in the bottom quarter nationally on this measure.

Why turnout in Princeton looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Princeton 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 71%, about 11 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 97% of households in Princeton own their home, about 22 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 97% of adults in Princeton have completed high school, above 90% of cities. Learn more about the findings and methodology on the political spectrum map.

Sources and methodology

Precinct-level voting records used to fit the model come from Idaho 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.