Rock Rapids Flag

Rock Rapids

County:
Lyon County
County Seat:
Yes
Area (mi²):
4.213
State:
Iowa

Rock Rapids is a city located in Lyon County, Iowa. Rock Rapids has a 2026 population of 2,757. It is also the county seat of Lyon County. Rock Rapids is currently growing at a rate of 0.88% annually and its population has increased by 5.55% since the most recent census, which recorded a population of 2,612 in 2020.

The median household income in Rock Rapids is $63,942 with a poverty rate of 6.52%. The median age in Rock Rapids is 41 years: 37.8 years for males, and 43.7 years for females. For every 100 females there are 106.6 males.

2.8K
Total Population
654
Density (mi²)
24 0.88%
Growth

Rock Rapids Population

Rock Rapids Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20262,757240.88%
20252,733240.89%
20242,709190.71%
20232,69080.3%
20222,682381.44%
20212,644311.19%
20202,612813.2%
20192,531-23-0.9%
20182,55460.24%
20172,548-8-0.31%
20162,556-14-0.54%
20152,57090.35%
20142,56100%
20132,561-10-0.39%
20122,57140.16%
20112,567230.9%
20102,544-5-0.2%
20002,573-28-1.08%
19902,601-92-3.42%
19802,693612.32%
19702,632-148-5.32%
19602,7801405.3%
19502,640843.29%
19402,55600%

Median Age

Overall: 41 years
Female: 43.7 years
Male: 37.8 years

Rock Rapids Adults

There are 1,917 adults, (544 of whom are seniors) in Rock Rapids.

Sex Ratio

Female: 1,288 (48.4%)
Male: 1,373 (51.6%)

Demographics

The racial composition of Rock Rapids includes 88.16% White, and smaller percentages for other race, Native American, Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White2,34688.16%
Two or more races2549.55%
Other race230.86%
Native American130.49%
Black or African American120.45%
Asian90.34%
Native Hawaiian or Pacific Islander40.15%
Race
Population ↓
Percentage (of total)
Two or more races1887.07%
Other race230.86%
White130.49%
Race
Population ↓
Percentage (of total)
White2,33387.67%
Two or more races662.48%
Native American130.49%
Black or African American120.45%
Asian90.34%
Native Hawaiian or Pacific Islander40.15%

Rock Rapids Marital Status

Economics and Income Statistics

Rock Rapids ' average per capita income is $48,058. Household income levels show a median of $63,942. The poverty rate stands at 6.52%.

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$95,139-
Families$80,769$93,138
Households$63,942$78,708
Non Families$38,750$49,161

$48,058

Average Income

$63,942

Median Household Income

6.52%

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)