Los Arcos
- County:
- Webb County
- County Seat:
- No
- Area (mi²):
- 0.206
- State:
- Texas
Los Arcos is a CDP located in Webb County, Texas. Los Arcos has a 2025 population of 20. Los Arcos is currently declining at a rate of -25.93% annually and its population has decreased by -47.37% since the most recent census, which recorded a population of 38 in 2020.
The median age in Los Arcos is 59.4 years: 0 years for males, and 0 years for females.