
Elsah
- County:
- Jersey County
- County Seat:
- No
- Area (mi²):
- 1.092
- State:
- Illinois
Elsah is a village located in Jersey County, Illinois. Elsah has a 2025 population of 514. Elsah is currently declining at a rate of -0.39% annually and its population has decreased by -1.72% since the most recent census, which recorded a population of 523 in 2020.
The average household income in Elsah is $95,281 with a poverty rate of 15.79%. The median age in Elsah is 20.6 years: 21.1 years for males, and 19.9 years for females.