Duncan

County:: Hancock County
County Seat:: No
Area (mi²):: 0.785
State:: Iowa

Duncan is a CDP located in Hancock County, Iowa. Duncan has a 2025 population of 67. Duncan is currently declining at a rate of -6.94% annually and its population has decreased by -34.31% since the most recent census, which recorded a population of 102 in 2020.

The average household income in Duncan is -$1000.00 Mn with a poverty rate of 78.05%. The median age in Duncan is 55.4 years: 29 years for males, and 0 years for females.

Demographics

The racial composition of Duncan includes 100% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race, Two or more races and multiracial populations.

Population by Race

White

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Two or more races

Race	Population	Percentage (of total)
White	41	100%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%
Two or more races	0	0%

Duncan Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Duncan's average per capita income is $0. Household income levels show a median of $0. The poverty rate stands at 78.05%.

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
Households	-	-
Families	-	-
Married Families	-	-
Non Families	-	-

$0

Average Income

$0

Median Household Income

78.05%

Poverty Rate