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 and multiracial populations.

Population by Race

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%

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