St. Clair township Flag

St. Clair township

County:
Monona County
County Seat:
No
Area (mi²):
35.91
State:
Iowa

St. Clair township is located in Monona County, Iowa. St. Clair township has a 2025 population of 488. St. Clair township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The average household income in St. Clair township is $71,496 with a poverty rate of 9.02%.The median age in St. Clair township is 41.3 years: 41.5 years for males, and 39.5 years for females.

488
Total Population
14
Density (mi²)
0 0%
Growth

St. Clair township Population

St. Clair township Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of St. Clair township includes 99.8% White, and smaller percentages for Two or more races and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White48799.8%
Two or more races10.2%

St. Clair township Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. Clair township's average per capita income is $48,024. Household income levels show a median of $55,455. The poverty rate stands at 9.02%.

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$108,269-
Families$66,250$84,965
Households$55,455$71,496
Non Families$35,811$58,705

$48,024

Average Income

$55,455

Median Household Income

9.02%

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)
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