Gardner is a village in Grundy County, Illinois, United States.

[6] As of the 2020 census[3] there were 1,366 people, 569 households, and 413 families residing in the village.

There were 619 housing units at an average density of 210.47 per square mile (81.26/km2).

The racial makeup of the village was 91.80% White, 0.51% African American, 0.59% Native American, 0.59% Asian, 0.00% Pacific Islander, 1.61% from other races, and 4.90% from two or more races.

20.56% of all households were made up of individuals, and 5.27% had someone living alone who was 65 years of age or older.