Putnam township

County:: Linn County
County Seat:: No
Area (mi²):: 27.456
State:: Iowa

Putnam township is located in Linn County, Iowa. Putnam township has a 2025 population of 2,694. Putnam 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 Putnam township is $119,282 with a poverty rate of 3.09%. The median age in Putnam township is 37.9 years: 38.3 years for males, and 37.1 years for females.

Demographics

The racial composition of Putnam township includes 96.7% White, and smaller percentages for Asian, Two or more races, Black or African American, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Asian

Two or more races

Black or African American

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	2,605	96.7%
Asian	44	1.63%
Two or more races	27	1%
Black or African American	12	0.45%
Other race	6	0.22%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Putnam township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Putnam township's average per capita income is $60,469. Household income levels show a median of $112,083. The poverty rate stands at 3.09%.

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	$150,313	-
Families	$135,795	$138,167
Households	$112,083	$119,282
Non Families	$56,818	$77,049

$60,469

Average Income

$112,083

Median Household Income

3.09%

Poverty Rate