Gardner is located at (41.187881, -88.309524).
There were 558 households out of which 35.3% had children under the age of 18 living with them, 56.8% were married couples living together, 8.8% had a female householder with no husband present, and 29.7% were non-families. 26.0% of all households were made up of individuals and 11.5% had someone living alone who was 65 years of age or older. The average household size was 2.52 and the average family size was 3.04.
In the village the population was spread out with 26.8% under the age of 18, 7.7% from 18 to 24, 31.2% from 25 to 44, 22.2% from 45 to 64, and 12.1% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 99.4 males. For every 100 females age 18 and over, there were 95.6 males.
The median income for a household in the village was $42,500, and the median income for a family was $51,827. Males had a median income of $45,288 versus $25,694 for females. The per capita income for the village was $18,995. About 6.0% of families and 6.8% of the population were below the poverty line, including 8.6% of those under age 18 and 2.7% of those age 65 or over.
Gardner is a small mid-west town about 60 miles southwest of Chicago on Historic U.S. 66. Gardner hosts an annual celebration on the first weekend in May in conjunction with the Route 66 Red Carpet Corridor. Gardner is known on U.S. 66 for it's historic 2-cell jail and the Riviera Restaurant, 1 mile east of town, a prohibition hangout of Al Capone with a beer cooler located in a basement vault.
Gardner has one grade school and one high school. The high school is known as Gardner-South Wilmington (GSW) High School and is actually the result of five towns combined. Students from the town of Braceville, East Brooklyn, and Central City also attend. GSW coops with Dwight Township High School (DTHS; Dwight, IL) in several sports including football, track, cross country, and golf.