Ulen
- County:
- Boone County
- County Seat:
- No
- Area (mi²):
- 0.228
- State:
- Indiana
Ulen is a town located in Boone County, Indiana. Ulen has a 2026 population of 115. Ulen is currently growing at a rate of 0.88% annually and its population has increased by 1.77% since the most recent census, which recorded a population of 113 in 2020.
The median age in Ulen is 54.1 years: 41.3 years for males, and 68.8 years for females. For every 100 females there are 117.1 males.