Terrace Heights leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About 75% of adults in Terrace Heights typically vote, above the U.S. average of about 62%. Among adults in Terrace Heights, ~29% vote Democratic, ~46% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.
How Terrace Heights compares
Among cities within 25 miles, Terrace Heights leans more Republican than 10 of 19 neighbors.
Terrace Heights runs about 41 points more Republican than Washington as a whole. Washington leans Democratic overall, while Terrace Heights is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Terrace Heights. The southeast side is the most Republican-leaning (R+36) and the southwest side is the least Republican-leaning (R+17), a spread of about 18 points.
Why Terrace Heights 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 Terrace Heights, not a ranked or complete list of what matters most.
Terrace Heights votes Republican even though it is densely developed (about 58%, well above the Washington average of 41%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Terrace Heights runs against the grain of Washington, a Republican-leaning pocket in a Democratic-leaning state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Terrace Heights, WA 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 Terrace Heights looks the way it does
Turnout in Terrace Heights 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
- Union Gap, WA R+8
- Moxee, WA R+33
- Yakima, WA R+4
- Selah, WA R+36
- Parker, WA R+8
- Gleed, WA R+41
- Wapato, WA D+14
- Sawyer, WA R+11
- Cowiche, WA R+25
- Buena, WA R+12
Cities with Similar Populations
- Payette, ID R+53
- Moscow Mills, MO R+48
- Granite Falls, WA R+17
- Oak Hills, CA R+39
- Lusby, MD R+9
- Salem, UT R+60
- Fairview, NC D+4
- Creedmoor, NC R+9
- Sumrall, MS R+73
- House Springs, MO R+45
Sources and methodology
Precinct-level voting records used to fit the model come from Washington Secretary of State, Elections, 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.