Rock Valley is a city located in Sioux County, Iowa. Rock Valley has a 2025 population of 4,030. Rock Valley is currently declining at a rate of -0.17% annually and its population has decreased by -0.91% since the most recent census, which recorded a population of 4,067 in 2020.
The average household income in Rock Valley is $91,511 with a poverty rate of 6.42%.The median age in Rock Valley is 41 years: 38.4 years for males, and 41.6 years for females.
Data after 2023 is projected based on recent change
The racial composition of Rock Valley includes 76.36% White, 3.67% other race, and smaller percentages for and multiracial populations.
Race | Population | Percentage (of total) |
---|---|---|
White | 3,101 | 76.36% |
Two or more races | 811 | 19.97% |
Other race | 149 | 3.67% |
Married
Widowed
Divorced
Separated
Never Married
Rock Valley's average per capita income is $39,909. Household income levels show a median of $67,012. The poverty rate stands at 6.42%.
Name | Median | Mean |
---|---|---|
Married Families | $107,607 | - |
Families | $97,344 | $114,159 |
Households | $67,012 | $91,511 |
Non Families | $23,736 | $36,040 |
Average Income
Median Household Income
Poverty Rate