
Ullin
- County:
- Pulaski County
- County Seat:
- No
- Area (mi²):
- 2.811
- State:
- Illinois
Ullin is a village located in Pulaski County, Illinois. Ullin has a 2025 population of 437. Ullin is currently declining at a rate of -1.35% annually and its population has decreased by -6.22% since the most recent census, which recorded a population of 466 in 2020.
The average household income in Ullin is $77,943 with a poverty rate of 6.38%. The median age in Ullin is 42 years: 42.2 years for males, and 38.9 years for females.