
Gardner
- County:
- Grundy County
- County Seat:
- No
- Area (mi²):
- 2.912
- State:
- Illinois
Gardner is a village located in Grundy County, Illinois. Gardner has a 2025 population of 1,366. Gardner is currently growing at a rate of 0.15% annually and its population has increased by 0.59% since the most recent census, which recorded a population of 1,358 in 2020.
The average household income in Gardner is $96,374 with a poverty rate of 15.23%. The median age in Gardner is 38.5 years: 32.8 years for males, and 42.3 years for females.