
Highland
- County:
- Madison County
- County Seat:
- No
- Area (mi²):
- 6.997
- State:
- Illinois
Highland is a city located in Madison County, Illinois. Highland has a 2025 population of 9,909. Highland is currently declining at a rate of -0.26% annually and its population has decreased by -1.29% since the most recent census, which recorded a population of 10,038 in 2020.
The average household income in Highland is $90,936 with a poverty rate of 6.03%. The median age in Highland is 42.1 years: 41.8 years for males, and 42.3 years for females.