Eva is a Republican stronghold. About 7% of voters here vote Democratic and 93% Republican.
About 44% of adults in Eva typically vote, below the U.S. average of about 62%. Among adults in Eva, ~3% vote Democratic, ~41% Republican, and ~56% don't vote. The map below shows estimated turnout by block group.
How Eva compares
Among cities within 25 miles, Eva leans more Republican than 7 of 9 neighbors.
Eva runs about 38 points more Republican than Oklahoma as a whole.
Why Eva 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 Eva, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 80% of households in Eva are family households, about 13 points above the U.S. average of 67%. Rural areas vote Republican, and Eva sits in the bottom quarter on density (about 3%, below 92% of cities).
Population density and Republican lean
Places with low population density tend to lean Republican; Eva, OK sits in the bottom tenth nationally on this measure.
Why turnout in Eva looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Eva is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Low high-school completion lines up with lower turnout, and about 87% of adults in Eva have completed high school, below 74% of cities. High-crime urban areas turn out at lower rates, and Eva sits in the top 15% on a violent-crime measure. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Elkhart, KS R+71
- Keyes, OK R+86
- Goodwell, OK R+67
- Texhoma, OK R+69
- Texhoma, TX R+87
- Guymon, OK R+33
- Straight, OK R+78
- Rolla, KS R+85
Cities with Similar Populations
- Zone, OH R+62
- Huffman, TN R+75
- Hutchins, GA R+43
- Jermyn, TX R+83
- Centerville, MT D+4
- Seabreeze, DE D+10
- Indian Grove, MO R+68
- Padonia, KS R+44
- Hinkleville, KY R+63
- Hillsdale, OK R+74
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Sources and methodology
Precinct-level voting records used to fit the model come from Oklahoma State Election Board, 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.