Los Fresnos
- County:
- Cameron County
- County Seat:
- No
- Area (mi²):
- 4.363
- State:
- Texas
Los Fresnos is a city located in Cameron County, Texas. Los Fresnos has a 2026 population of 8,563. Los Fresnos is currently growing at a rate of 2.03% annually and its population has increased by 4.94% since the most recent census, which recorded a population of 8,160 in 2020.