Duncombe Flag

Duncombe

County:
Webster County
County Seat:
No
Area (mi²):
1.963
State:
Iowa

Duncombe is a city located in Webster County, Iowa. Duncombe has a 2025 population of 364. Duncombe is currently declining at a rate of -0.82% annually and its population has decreased by -3.96% since the most recent census, which recorded a population of 379 in 2020.

The average household income in Duncombe is $65,761 with a poverty rate of 6.84%. The median age in Duncombe is 29.2 years: 25.4 years for males, and 46.4 years for females.

364
Total Population
185
Density (mi²)
-3 -0.82%
Growth

Duncombe Population

Duncombe Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Duncombe includes 93.72% White, and smaller percentages for Asian, other race, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Asian

Other race

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race
Population
Percentage (of total)
White35893.72%
Two or more races133.4%
Asian71.83%
Other race41.05%
Black or African American00%
Native American00%
Native Hawaiian or Pacific Islander00%

Duncombe Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Duncombe's average per capita income is $50,313. Household income levels show a median of $63,125. The poverty rate stands at 6.84%.

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$80,000-
Families$72,344$80,283
Households$63,125$65,761
Non Families$45,833$54,123

$50,313

Average Income

$63,125

Median Household Income

6.84%

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)