Rosalia is located in Butler County, Kansas. Rosalia has a 2025 population of 544 . Rosalia is currently declining at a rate of -1.63% annually and its population has decreased by -2.33% since the most recent census, which recorded a population of 557 in 2020.
The average household income in Rosalia is $122,643 with a poverty rate of 5.49%. The median age in Rosalia is 42.8 years: 42.1 years for males, and 44.1 years for females. For every 100 females there are 88.9 males.
Data after 2023 is projected based on recent change
The racial composition of Rosalia includes 95.6% White, and smaller percentages for Two or more races, other race and multiracial populations.
White (95.6%)
Two or more races (2.38%)
Other race (2.01%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 522 | 95.6% |
| Two or more races | 13 | 2.38% |
| Other race | 11 | 2.01% |
Married
Widowed
Divorced
Separated
Never Married
Rosalia's average per capita income is $56,364. Household income levels show a median of $94,167. The poverty rate stands at 5.49%.
Name | Median | Mean |
|---|---|---|
| Married Families | $113,125 | - |
| Families | $108,333 | $115,687 |
| Households | $94,167 | $122,643 |
| Non Families | - | $141,982 |
Average Income
Median Household Income
Poverty Rate