Gardner is located in Grundy County, Illinois. Gardner has a 2025 population of 4,583 . Gardner is currently declining at a rate of 0% annually and its population has decreased by -1.25% since the most recent census, which recorded a population of 4,641 in 2020.
The average household income in Gardner is $132,292 with a poverty rate of 2.04%. The median age in Gardner is 42.2 years: 42.8 years for males, and 38.2 years for females. For every 100 females there are 92.4 males.
Data after 2023 is projected based on recent change
The racial composition of Gardner includes 89.21% White, and smaller percentages for Black or African American, other race, Asian and multiracial populations.
White (89.21%)
Two or more races (6.56%)
Black or African American (2.21%)
Other race (1.41%)
Asian (0.61%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 4,119 | 89.21% |
| Two or more races | 303 | 6.56% |
| Black or African American | 102 | 2.21% |
| Other race | 65 | 1.41% |
| Asian | 28 | 0.61% |
Married
Widowed
Divorced
Separated
Never Married
Gardner's average per capita income is $60,819. Household income levels show a median of $97,279. The poverty rate stands at 2.04%.
Name | Median | Mean |
|---|---|---|
| Married Families | $128,750 | - |
| Families | $116,648 | $144,660 |
| Households | $97,279 | $132,292 |
| Non Families | $68,786 | $94,492 |
Average Income
Median Household Income
Poverty Rate