Casco
- County:
- Kewaunee County
- County Seat:
- No
- Area (mi²):
- 0.666
- State:
- Wisconsin
Casco is a village located in Kewaunee County, Wisconsin. Casco has a 2026 population of 683. Casco is currently growing at a rate of 1.49% annually and its population has increased by 8.93% since the most recent census, which recorded a population of 627 in 2020.