St. Olaf Flag

St. Olaf

County:
Clayton County
County Seat:
No
Area (mi²):
0.241
State:
Iowa

St. Olaf is a city located in Clayton County, Iowa. St. Olaf has a 2025 population of 101 . St. Olaf is currently declining at a rate of -0.98% annually and its population has decreased by -2.88% since the most recent census, which recorded a population of 104 in 2020.

The average household income in St. Olaf is $85,241 with a poverty rate of 6.85%. The median age in St. Olaf is 49.7 years: 48.3 years for males, and 54.5 years for females. For every 100 females there are 141.9 males.

101
Total Population
419
Density (mi²)
-1 -0.98%
Growth

St. Olaf Population

St. Olaf Population

Data after 2023 is projected based on recent change

Demographics

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

Population by Race

White (100%)

Race
Population
Percentage (of total)
White75100%

St. Olaf Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. Olaf's average per capita income is $36,875. Household income levels show a median of $88,750. The poverty rate stands at 6.85%.

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$106,250-
Families$100,000$101,673
Households$88,750$85,241
Non Families$49,375$45,345

$36,875

Average Income

$88,750

Median Household Income

6.85%

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)