87931 leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About 90% of adults in 87931 typically vote, above the U.S. average of about 62%. Among adults in 87931, ~30% vote Democratic, ~60% Republican, and ~10% don't vote. The map below shows estimated turnout by block group.
How 87931 compares
Among zip codes within 15 miles, 87931 leans more Republican than 4 of 5 neighbors.
87931 runs about 41 points more Republican than New Mexico as a whole. New Mexico leans Democratic overall, while 87931 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 87931. The northeast side is the most Republican-leaning (R+43) and the southwest side is the least Republican-leaning (R+20), a spread of about 23 points.
Why 87931 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 87931, not a ranked or complete list of what matters most.
87931 votes against the grain of New Mexico. New Mexico leans Democratic overall, while 87931 runs about 41 points more Republican.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 87931, NM sits in the bottom tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 87931 looks the way it does
Homeowners vote more often than renters. About 91% of households in 87931 own their home, about 11 points above the New Mexico average of 80%. Limited routine healthcare access lines up with lower turnout, and 87931 sits in the bottom quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
Sources and methodology
Precinct-level voting records used to fit the model come from New Mexico Secretary of State, Bureau 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.