Rock Rapids Flag

Rock Rapids

County:
Lyon County
County Seat:
Yes
Area (mi²):
4.209
State:
Iowa

Rock Rapids is a city located in Lyon County, Iowa. Rock Rapids has a 2025 population of 2,770. It is also the county seat of Lyon County. Rock Rapids is currently growing at a rate of 1.17% annually and its population has increased by 6.17% since the most recent census, which recorded a population of 2,609 in 2020.

The average household income in Rock Rapids is $77,994 with a poverty rate of 5.88%.The median age in Rock Rapids is 42.1 years: 38.3 years for males, and 45.8 years for females.

2.8K
Total Population
658
Density (mi²)
32 1.17%
Growth

Rock Rapids Population

Rock Rapids Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Rock Rapids includes 91.22% White, and smaller percentages for other race, Asian, Black or African American, Native American and multiracial populations.

Population by Race

White (91.2%)

Two or more races (7.6%)

Other race (0.6%)

Asian (0.3%)

Black or African American (0.2%)

Native American (0.1%)

Race
Population
Percentage (of total)
White2,42091.22%
Two or more races2017.58%
Other race170.64%
Asian80.3%
Black or African American50.19%
Native American20.08%

Rock Rapids Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Rock Rapids' average per capita income is $48,792. Household income levels show a median of $61,679. The poverty rate stands at 5.88%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$94,261-
Families$80,324$92,767
Households$61,679$77,994
Non Families$40,000$47,074

$48,792

Average Income

$61,679

Median Household Income

5.88%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)