
Dayton
- County:
- LaSalle County
- County Seat:
- No
- Area (mi²):
- 1.839
- State:
- Illinois
Dayton is a CDP located in LaSalle County, Illinois. Dayton has a 2025 population of 488. Dayton is currently declining at a rate of -0.81% annually but its population has increased by 2.74% since the most recent census, which recorded a population of 475 in 2020.
The average household income in Dayton is $154,053 with a poverty rate of 2.48%. The median age in Dayton is 46.5 years: 46.8 years for males, and 43.6 years for females.