Kleberg County leans slightly Republican by roughly 6 points: about 47% of voters vote Democratic and 53% Republican.
About 54% of adults in Kleberg County typically vote, below the U.S. average of about 62%. Among adults in Kleberg County, ~25% vote Democratic, ~29% Republican, and ~46% don't vote. The map below shows estimated turnout by block group.
How Kleberg County compares
Among counties within 50 miles, Kleberg County leans more Republican than 2 of 6 neighbors.
Kleberg County runs about 8 points more Democratic than Texas as a whole.
Politics vary noticeably by city within Kleberg County. The north side runs the most Democratic (D+10) and the southeast side runs the most Republican (R+26), a spread of about 36 points.
Why Kleberg County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Kleberg County, not a ranked or complete list of what matters most.
Kleberg County votes Republican even though it is densely developed (about 60%, well above the Texas average of 35%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Kleberg County, TX sits in the bottom tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Kleberg County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Kleberg County 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 47%, about 6 points below the Texas average of 54%. Renters vote less often than owners, and about 45% of households in Kleberg County rent, about 20 points above the U.S. average of 25%. Low high-school completion lines up with lower turnout, and about 84% of adults in Kleberg County have completed high school, below 82% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Jim Wells County, TX R+14
- Brooks County, TX D+7
- Kenedy County, TX R+44
- Nueces County, TX R+4
- Duval County, TX R+10
- San Patricio County, TX R+31
- Jim Hogg County, TX R+2
- Live Oak County, TX R+61
- Aransas County, TX R+46
- Bee County, TX R+22
Counties with Similar Populations
- Bee County, TX R+22
- Williamsburg County, SC D+26
- Summit County, CO D+23
- Stone County, MO R+55
- Elk County, PA R+42
- Washington County, ME R+24
- Bolivar County, MS D+34
- Wabash County, IN R+48
- Lake County, MT R+21
- Clarendon County, SC R+8
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.