Rolla is located in Morton County, Kansas. Rolla has a 2025 population of 427 . Rolla is currently declining at a rate of -4.26% annually and its population has decreased by -11.78% since the most recent census, which recorded a population of 484 in 2020.
The average household income in Rolla is $73,017 with a poverty rate of 7.56%. The median age in Rolla is 43 years: 43.2 years for males, and 41.9 years for females. For every 100 females there are 79.2 males.
Data after 2023 is projected based on recent change
The racial composition of Rolla includes 65.41% White, 4.94% Black or African American, 3.34% other race, and smaller percentages for Asian and multiracial populations.
White (65.41%)
Two or more races (25.58%)
Black or African American (4.94%)
Other race (3.34%)
Asian (0.73%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 450 | 65.41% |
| Two or more races | 176 | 25.58% |
| Black or African American | 34 | 4.94% |
| Other race | 23 | 3.34% |
| Asian | 5 | 0.73% |
Married
Widowed
Divorced
Separated
Never Married
Rolla's average per capita income is $37,070. Household income levels show a median of $66,944. The poverty rate stands at 7.56%.
Name | Median | Mean |
|---|---|---|
| Married Families | $81,875 | - |
| Families | $73,603 | $88,140 |
| Households | $66,944 | $73,017 |
| Non Families | - | $39,988 |
Average Income
Median Household Income
Poverty Rate