Most Democrat and Republican city in each state with description

[OBD]

Oregon (using 10k as the benchmark for a 'city' - they're more so towns at this point)

Most Democratic

1. Ashland (Biden+73) - a bite-sized town near the California border. Home of Southern Oregon University and the Oregon Shakespeare Festival, Ashland's kind of what you would get if you moved a slice of downtown PDX to Jackson County. Hippie, resort town-esque vibes.

2. Portland (Biden+70.5) - needs no explanation. While Biden gets a ridiculous 95% of the vote in some precincts just east of the river, more suburban areas east of I-205 in the city limits dilute his numbers enough to bump Portland below Ashland.

3. Corvallis (Biden+60.5) - home of OSU, seems to be a fairly typical college town.

4. Cedar Mill (Biden+51.4) - a small (18k), affulent, overwhelmingly residential western suburb of Portland. Has an elevated Asian population (22%) - spillover from majority-minority Bethany to the north. Is the white, hyperliberal suburb emblematic of the Portland metro area. Neighbors (e.g. West Haven-Sylvan, Garden Home) are even bluer but fall short of the population threshold.

5. Eugene (Biden+50.5) - Oregon's second-largest city, home of UO. Like Portland, slightly more expansive urban boundaries dilute Democratic strength here - particularly areas to the north and west of more suburban character.

Most Republican

1. Baker City (Trump+45.6) - the smallest (just over 10k) and most Republican of the major small towns lining Interstate 84 as it winds east from Portland to Boise. While Democrats come close to cresting 40% in fellow Eastern Oregon towns Pendleton, La Grande, and Ontario (with some WWC latent D strength, Eastern Oregon University, and elevated minority populations respectively) , they have no strength in 87% white Baker City, which is nearly indistinguishable from the rest of the county on precinct maps.

2. Altamont (Trump+42.3) - a suburb - well, more of a partner town (considering they both house roughly 20k people) - of Klamath Falls, the sole population center in Southern Oregon east of the cascades. Oregon Tech, a small university, has its primary campus in the area (anchoring the small swingy area of the county), and Crater Lake is nearby, but Altamont votes nearly as GOP as its neighboring suburbs.

3. Prineville (Trump+42.2) - a small, rural town of 11,000, and the chair of Crook County. Located about an hour away from Bend, Redmond, and the fast-growing US 97 corridor, Prineville has shared some of the region's population growth but is not liberalizing comparatively.

4. Central Point (Trump+28.6) - a deep-red suburb of Medford. Votes in line with crimson Southern Oregon rather than relatively blue southern Jackson County - Douglas County (home of notoriously red Roseburg), Josephine and northern Jackson is by far the reddest part of the state west of the Rockies.

5. Hermiston (Trump+24.5) - Majority-minority Hermiston rounds out this list. Known for watermelons, the region is home to a lot of (I assume) Hispanic farmworkers, but still votes solidly Republican. Hermiston has just under 20k people.

X. Medford (Trump+4) - while far from the most Republican city in the state, it is the most Republican city of size (>50k). It is also the only city of size to vote for Trump two years ago, with Albany (primary city of GOP bastion Linn County) flipping blue in 2020.

Also, if you're looking for the absolute most Republican census-designated place in the state, regardless of population, there's 100% Republican Juntura - home of 39 people, 34 of which voted Trump.