Otero County leans Republican by roughly 18 points: about 41% of voters vote Democratic and 59% Republican.
About 58% of adults in Otero County typically vote, near the U.S. average of about 62%. Among adults in Otero County, ~24% vote Democratic, ~34% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.
How Otero County compares
Otero County runs about 25 points more Republican than New Mexico as a whole. New Mexico leans Democratic overall, while Otero County is one of the few Republican-leaning pockets.
Politics vary noticeably by city within Otero County. The northeast side runs the most Democratic (D+12) and the southeast side runs the most Republican (R+82), a spread of about 95 points.
Why Otero County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Otero County, not a ranked or complete list of what matters most.
Otero County votes against the grain of New Mexico. New Mexico leans Democratic overall, while Otero County runs about 25 points more Republican.
Never-married share, developed land, and voter turnout
Places that combine a never-married-heavy adult population and a heavily developed built environment tend to turn out at a lower rate, as Otero County, NM does.
Why turnout in Otero County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Otero County is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 32% of households in Otero County rent, above 81% of counties. High food insecurity lines up with lower turnout, and about 24% of adults in Otero County report food insecurity, above 87% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Lincoln County, NM R+28
- Dona Ana County, NM D+4
- El Paso County, TX D+15
- Sierra County, NM R+17
- Chaves County, NM R+37
- Eddy County, NM R+49
- Hudspeth County, TX R+45
- Luna County, NM R+19
- Socorro County, NM Even
- Grant County, NM D+6
Counties with Similar Populations
- Catoosa County, GA R+54
- McCracken County, KY R+30
- Carteret County, NC R+35
- Madison County, NY R+13
- Walker County, GA R+61
- Oldham County, KY R+23
- Shiawassee County, MI R+27
- Allegany County, MD R+33
- Laurens County, SC R+35
- Lake County, CA R+4
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.