Rock Creek-Lima is located in Carroll County, Illinois. Rock Creek-Lima has a 2025 population of 1,929 . Rock Creek-Lima is currently declining at a rate of -0.41% annually and its population has decreased by -3.07% since the most recent census, which recorded a population of 1,990 in 2020.
The average household income in Rock Creek-Lima is $86,448 with a poverty rate of 11.68%. The median age in Rock Creek-Lima is 37.9 years: 36.8 years for males, and 38.4 years for females. For every 100 females there are 110.0 males.
Data after 2023 is projected based on recent change
The racial composition of Rock Creek-Lima includes 95.29% White, and smaller percentages for Black or African American, other race and multiracial populations.
White (95.29%)
Two or more races (3.52%)
Black or African American (0.7%)
Other race (0.49%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,759 | 95.29% |
| Two or more races | 65 | 3.52% |
| Black or African American | 13 | 0.7% |
| Other race | 9 | 0.49% |
Married
Widowed
Divorced
Separated
Never Married
Rock Creek-Lima's average per capita income is $52,872. Household income levels show a median of $73,333. The poverty rate stands at 11.68%.
Name | Median | Mean |
|---|---|---|
| Married Families | $117,917 | - |
| Families | $102,292 | $99,533 |
| Households | $73,333 | $86,448 |
| Non Families | $40,956 | $56,780 |
Average Income
Median Household Income
Poverty Rate