Riggston
- County:
- Morgan County
- County Seat:
- No
- Area (mi²):
- 0.026
- State:
- Illinois
Riggston is a CDP located in Morgan County, Illinois. Riggston has a 2025 population of 22. Riggston is currently growing at a rate of 4.76% annually and its population has increased by 46.67% since the most recent census, which recorded a population of 15 in 2020.
The median age in Riggston is 64.6 years: 0 years for males, and 64.2 years for females.