Sulphur is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.
About 65% of adults in Sulphur typically vote, near the U.S. average of about 62%. Among adults in Sulphur, ~14% vote Democratic, ~51% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How Sulphur compares
Among cities within 25 miles, Sulphur leans more Republican than 4 of 41 neighbors.
Sulphur runs about 7 points more Republican than Oklahoma as a whole.
Politics vary noticeably by neighborhood within Sulphur. The northwest side is the most Republican-leaning (R+63) and the north side is the least Republican-leaning (R+50), a spread of about 13 points.
Why Sulphur 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 Sulphur, not a ranked or complete list of what matters most.
Sulphur votes Republican even though it is densely developed (about 29%, modestly above the Oklahoma average of 18%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Sulphur, OK sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Sulphur looks the way it does
Turnout in Sulphur sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Scullin, OK R+68
- Davis, OK R+60
- Dougherty, OK R+61
- Hickory, OK R+71
- Iona, OK R+71
- Joy, OK R+71
- Nebo, OK R+68
- Roff, OK R+70
- Mill Creek, OK R+73
- Wynnewood, OK R+60
Cities with Similar Populations
- Moundville, AL R+16
- Independence, OH R+17
- Boyne City, MI R+19
- Coldwater, MS R+34
- Raymond, MS R+10
- Willcox, AZ R+37
- Otis Orchards, WA R+34
- Glen Rock, PA R+39
- Coloma, MI R+22
- Negaunee, MI R+12
All Local Stats
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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.