
Dundas
- County:
- Richland County
- County Seat:
- No
- Area (mi²):
- 0.669
- State:
- Illinois
Dundas is a CDP located in Richland County, Illinois. Dundas has a 2025 population of 384. Dundas is currently growing at a rate of 7.26% annually and its population has increased by 48.26% since the most recent census, which recorded a population of 259 in 2020.
The average household income in Dundas is $82,561 with a poverty rate of 0%. The median age in Dundas is 51.2 years: 37.9 years for males, and 51.2 years for females.