Keene is located in Adams County, Illinois. Keene has a 2025 population of 586 . Keene is currently declining at a rate of -0.68% annually and its population has decreased by -3.3% since the most recent census, which recorded a population of 606 in 2020.
The average household income in Keene is $86,627 with a poverty rate of 5.84%. The median age in Keene is 59.3 years: 58.8 years for males, and 61 years for females. For every 100 females there are 107.2 males.
Data after 2023 is projected based on recent change
The racial composition of Keene includes 93.53% White, and smaller percentages for Black or African American, Native American, other race and multiracial populations.
White (93.53%)
Two or more races (4.26%)
Black or African American (1.89%)
Native American (0.16%)
Other race (0.16%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 593 | 93.53% |
| Two or more races | 27 | 4.26% |
| Black or African American | 12 | 1.89% |
| Native American | 1 | 0.16% |
| Other race | 1 | 0.16% |
Married
Widowed
Divorced
Separated
Never Married
Keene's average per capita income is $45,789. Household income levels show a median of $66,181. The poverty rate stands at 5.84%.
Name | Median | Mean |
|---|---|---|
| Married Families | $98,542 | - |
| Families | $83,750 | $98,814 |
| Households | $66,181 | $86,627 |
| Non Families | $42,813 | $42,908 |
Average Income
Median Household Income
Poverty Rate