Brownsville leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 78% of adults in Brownsville typically vote, above the U.S. average of about 62%. Among adults in Brownsville, ~25% vote Democratic, ~53% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How Brownsville compares
Among cities within 25 miles, Brownsville leans more Republican than 28 of 49 neighbors.
Brownsville runs about 51 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while Brownsville is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Brownsville. The southwest side is the most Republican-leaning (R+47) and the east side is the least Republican-leaning (R+35), a spread of about 12 points.
Why Brownsville 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 Brownsville, not a ranked or complete list of what matters most.
Brownsville votes against the grain of Oregon. Oregon leans Democratic overall, while Brownsville runs about 51 points more Republican.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Brownsville, OR sits below the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Brownsville looks the way it does
High high-school completion lines up with higher turnout, and about 96% of adults in Brownsville have completed high school, above 80% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Union Point, OR R+47
- Plainview, OR R+45
- Crawfordsville, OR R+46
- Sodaville, OR R+41
- Halsey, OR R+56
- Shedd, OR R+51
- Liberty, OR R+47
- Waterloo, OR R+41
- Lebanon, OR R+33
- Miller, OR R+54
Cities with Similar Populations
- Conneaut Lakeshore, PA R+34
- Webster, GA R+16
- Wares Crossroads, GA R+50
- Kinderhook, NY D+10
- Argyle, NY R+34
- Whitley City, KY R+72
- Mansfield, AR R+68
- Post Oak Bend City, TX R+61
- Smithfield, KY R+51
- Pelham, NC R+36
Sources and methodology
Precinct-level voting records used to fit the model come from Oregon Secretary of State, Elections Division, 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.