
Cameron County
- State:
- Texas
- County Seat:
- Brownsville
Cameron County's estimated 2025 population is 430,308 with a growth rate of 0.42% in the past year according to the most recent United States census data. Cameron County is the 13th largest county in Texas. The 2010 population was 407,608 and has seen a growth of 5.57% since that time.