Rosalia is a CDP located in Butler County, Kansas. Rosalia has a 2025 population of 147 . Rosalia is currently declining at a rate of -1.34% annually but its population has increased by 47% since the most recent census, which recorded a population of 100 in 2020.
The average household income in Rosalia is $162,944 with a poverty rate of 15.08%. The median age in Rosalia is 29.5 years: 28.8 years for males, and 29.5 years for females. For every 100 females there are 84.5 males.
Data after 2023 is projected based on recent change
The racial composition of Rosalia includes 100% White, and smaller percentages for and multiracial populations.
White (100%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 179 | 100% |
Married
Widowed
Divorced
Separated
Never Married
Rosalia's average per capita income is $38,750. Household income levels show a median of $0. The poverty rate stands at 15.08%.
Name | Median | Mean |
|---|---|---|
| Households | - | $162,944 |
| Families | - | $94,104 |
| Married Families | - | - |
| Non Families | - | $455,517 |
Average Income
Median Household Income
Poverty Rate