St. Clair township Flag

St. Clair township

County:
Benton County
County Seat:
No
Area (mi²):
35.873
State:
Iowa

St. Clair township is located in Benton County, Iowa. St. Clair township has a 2025 population of 392. 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 $93,824 with a poverty rate of 5.36%. The median age in St. Clair township is 41.5 years: 41.9 years for males, and 30.7 years for females.

392
Total Population
11
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 98.21% White, and smaller percentages for Native American, Black or African American, Asian, Native Hawaiian or Pacific Islander, other race, Two or more races and multiracial populations.

Population by Race

White

Native American

Black or African American

Asian

Native Hawaiian or Pacific Islander

Other race

Two or more races

Race
Population
Percentage (of total)
White38598.21%
Native American71.79%
Black or African American00%
Asian00%
Native Hawaiian or Pacific Islander00%
Other race00%
Two or more races00%

St. Clair township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. Clair township's average per capita income is $70,156. Household income levels show a median of $115,577. The poverty rate stands at 5.36%.

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$116,490$103,779
Married Families$116,346-
Households$115,577$93,824
Non Families--

$70,156

Average Income

$115,577

Median Household Income

5.36%

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)