Sena leans heavily Democratic by roughly 40 points: about 70% of voters vote Democratic and 30% Republican.
About 55% of adults in Sena typically vote, below the U.S. average of about 62%. Among adults in Sena, ~39% vote Democratic, ~17% Republican, and ~44% don't vote. The map below shows estimated turnout by block group.
How Sena compares
Among cities within 25 miles, Sena is the most Democratic-leaning.
Sena runs about 34 points more Democratic than New Mexico as a whole.
Why Sena 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 Sena, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 36% of adults in Sena have never been married, modestly above similar-sized cities (around 25%).
High-school completion, uninsured rate, and voter turnout
Places that combine low high-school-completion share and a high uninsured rate tend to turn out at a lower rate, as Sena, NM does.
Why turnout in Sena looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Sena is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The uninsured rate here is about 23%, about 7 points above the New Mexico average of 16%. High food insecurity lines up with lower turnout, and about 28% of adults in Sena report food insecurity, above 94% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Pueblo, NM D+31
- Villanueva, NM D+39
- Ribera, NM D+31
- Serafina, NM D+32
- Gonzales Ranch, NM D+27
- El Ancon, NM D+8
- Chapelle, NM D+29
- San Jose, NM D+13
- Soham, NM D+8
Cities with Similar Populations
- Zearing, IL R+36
- Yorktown, IA R+55
- Gray Point, LA R+84
- Standard, LA R+91
- Hilltop, TN R+67
- Wallis Run, PA R+61
- Arden, NY Even
- Loma, MT R+53
- Dover, WI R+39
- Edwards, KY R+65
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.