Argo
- County:
- St. Clair County
- County Seat:
- No
- Area (mi²):
- 10.973
- State:
- Alabama
Argo is a city located in St. Clair County, Alabama. Argo has a 2026 population of 4,369. Argo is currently declining at a rate of -0.07% annually and its population has decreased by -0.59% since the most recent census, which recorded a population of 4,395 in 2020.