Denver Harbor-Port Houston, Houston, TX Political Map | Democrat & Republican Areas in Denver Harbor-Port Houston

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

Denver Harbor-Port Houston leans Democratic by roughly 30 points: about 65% of voters vote Democratic and 35% Republican.

 

About 32% of adults in Denver Harbor-Port Houston typically vote, below the U.S. average of about 62%. Among adults in Denver Harbor-Port Houston, ~21% vote Democratic, ~11% Republican, and ~68% don't vote. The map below shows estimated turnout by block group.

How Denver Harbor-Port Houston compares

Among neighborhoods within 5 miles, Denver Harbor-Port Houston leans more Democratic than 1 of 6 neighbors.

Denver Harbor-Port Houston runs about 43 points more Democratic than Texas as a whole. Texas leans Republican overall, while Denver Harbor-Port Houston is one of the few Democratic-leaning pockets.

Politics vary noticeably by block within Denver Harbor-Port Houston. The east side is the most Democratic-leaning (D+46) and the northwest side is the least Democratic-leaning (D+21), a spread of about 26 points.

Why Denver Harbor-Port Houston leans the way it does

This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Denver Harbor-Port Houston, not a ranked or complete list of what matters most.

Dense areas vote Democratic. More than 99% of residents in Denver Harbor-Port Houston live in densely developed areas, about 64 points above the U.S. average of 36%. Denver Harbor-Port Houston runs against the grain of Texas, a Democratic-leaning pocket in a Republican-leaning state.

Paved land cover and Democratic lean

Places with extensive paved surfaces tend to lean Democratic; Denver Harbor-Port Houston, Houston, TX 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 Denver Harbor-Port Houston looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Denver Harbor-Port Houston is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 36%, about 17 points below the Texas average of 54%. Low high-school completion lines up with lower turnout, and about 61% of adults in Denver Harbor-Port Houston have completed high school, below 98% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.

All Local Stats

Home Services

Sources and methodology

Precinct-level voting records used to fit the model come from Texas 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.