Cottage Grove is located in Allen County, Kansas. Cottage Grove has a 2025 population of 223 . Cottage Grove is currently declining at a rate of -0.45% annually but its population has increased by 0.9% since the most recent census, which recorded a population of 221 in 2020.
The average household income in Cottage Grove is $137,111 with a poverty rate of 0%. The median age in Cottage Grove is 49.8 years: 35.4 years for males, and 60.9 years for females. For every 100 females there are 150.0 males.
Data after 2023 is projected based on recent change
The racial composition of Cottage Grove includes 100% White, and smaller percentages for and multiracial populations.
White (100%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 485 | 100% |
Married
Widowed
Divorced
Separated
Never Married
Cottage Grove's average per capita income is $0. Household income levels show a median of $190,129. The poverty rate stands at 0%.
Name | Median | Mean |
|---|---|---|
| Families | $192,750 | $178,815 |
| Married Families | $192,750 | - |
| Households | $190,129 | $137,111 |
| Non Families | $58,511 | $59,844 |
Average Income
Median Household Income
Poverty Rate