Rock Falls Flag

Rock Falls

County Seat:
No
Area (mi²):
0.207
State:
Iowa

Rock Falls is a city located in Cerro Gordo County, Iowa. Rock Falls has a 2025 population of 142. Rock Falls is currently declining at a rate of -0.7% annually and its population has decreased by -4.7% since the most recent census, which recorded a population of 149 in 2020.

The average household income in Rock Falls is $70,694 with a poverty rate of 11.2%.The median age in Rock Falls is 39.3 years: 42.5 years for males, and 34.3 years for females.

142
Total Population
686
Density (mi²)
-1 -0.7%
Growth

Rock Falls Population

Rock Falls Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Rock Falls includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White125100%

Rock Falls Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Rock Falls' average per capita income is $42,083. Household income levels show a median of $66,875. The poverty rate stands at 11.2%.

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
Families$77,500$91,118
Married Families$69,375-
Households$66,875$70,694
Non Families-$40,600

$42,083

Average Income

$66,875

Median Household Income

11.2%

Poverty Rate

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)