Rockport leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 80% of adults in Rockport typically vote, above the U.S. average of about 62%. Among adults in Rockport, ~22% vote Democratic, ~58% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How Rockport compares
Among cities within 25 miles, Rockport leans more Republican than 7 of 15 neighbors.
Rockport runs about 30 points more Republican than Texas as a whole.
Politics vary noticeably by neighborhood within Rockport. The northwest side is the most Republican-leaning (R+57) and the southeast side is the least Republican-leaning (R+30), a spread of about 27 points.
Why Rockport 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 Rockport, not a ranked or complete list of what matters most.
Rockport votes Republican even though it is densely developed (about 64%, well above the Texas average of 35%). Here an older population outweighs the Democratic lean that density usually predicts.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Rockport, TX sits in the top tenth 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 Rockport looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Rockport is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Fulton, TX R+50
- Estes, TX R+57
- Bayside, TX R+59
- Aransas Pass, TX R+46
- Ingleside, TX R+45
- Port Aransas, TX R+43
- Gregory, TX R+20
- Ingleside on the Bay, TX R+56
- Portland, TX R+38
Cities with Similar Populations
- Charles Town, WV R+20
- Belle Glade, FL D+41
- Benton Harbor, MI D+42
- Knik-Fairview, AK R+40
- Angier, NC R+29
- Maple Shade, NJ D+15
- Waterville, ME D+8
- Phelan, CA R+39
- Manchester, MO D+10
- Lawrenceburg, IN R+48
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.