Arch Cape, OR Political Map | Democrat & Republican Areas in Arch Cape

By the BestNeighborhood data science team. Last updated May 2026.

Arch Cape leans Democratic by roughly 18 points: about 59% of voters vote Democratic and 41% Republican.

 

About 78% of adults in Arch Cape typically vote, above the U.S. average of about 62%. Among adults in Arch Cape, ~46% vote Democratic, ~32% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.

How Arch Cape compares

Among cities within 25 miles, Arch Cape leans more Democratic than 18 of 24 neighbors.

Arch Cape runs about 4 points more Democratic than Oregon as a whole.

Politics vary noticeably by neighborhood within Arch Cape. The east side is the most Democratic-leaning (D+30) and the southeast side is the least Democratic-leaning (D+9), a spread of about 21 points.

Why Arch Cape 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 Arch Cape, not a ranked or complete list of what matters most.

Areas with high college attainment vote Democratic. About 40% of adults in Arch Cape hold a bachelor's degree, about 12 points above the U.S. average of 28%.

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Arch Cape, OR sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.

Why turnout in Arch Cape looks the way it does

Turnout in Arch Cape 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.

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.