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 2026 population of 371. Duncombe is currently declining at a rate of -0.27% annually and its population has decreased by -2.11% since the most recent census, which recorded a population of 379 in 2020.

The median household income in Duncombe is $52,500 with a poverty rate of 8.56%. The median age in Duncombe is 34.8 years: 27.5 years for males, and 46.7 years for females. For every 100 females there are 108.9 males.

371
Total Population
189
Density (mi²)
-1 -0.27%
Growth

Duncombe Population

Duncombe Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026371-1-0.27%
2025372-2-0.53%
202437420.54%
2023372-1-0.27%
2022373-3-0.8%
2021376-3-0.79%
202037900%
2019386-5-1.28%
2018391-4-1.01%
2017395-4-1%
2016399-3-0.75%
201540230.75%
2014399-4-0.99%
2013403-1-0.25%
2012404-2-0.49%
2011406-4-0.98%
2010411-1-0.24%

Median Age

Overall: 34.8 years
Female: 46.7 years
Male: 27.5 years

Duncombe Adults

There are 301 adults, (84 of whom are seniors) in Duncombe.

Sex Ratio

Female: 180 (47.9%)
Male: 196 (52.1%)

Demographics

The racial composition of Duncombe includes 91.22% White, and smaller percentages for Asian, other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White34391.22%
Two or more races184.79%
Asian112.93%
Other race41.06%
Race
Population ↓
Percentage (of total)
Other race41.06%
White30.8%
Two or more races20.53%
Race
Population ↓
Percentage (of total)
White34090.43%
Two or more races164.26%
Asian112.93%

Duncombe Marital Status

Economics and Income Statistics

Duncombe 's average per capita income is $50,750. Household income levels show a median of $52,500. The poverty rate stands at 8.56%.

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$78,750-
Families$73,929$78,613
Households$52,500$62,570
Non Families$39,167$49,102

$50,750

Average Income

$52,500

Median Household Income

8.56%

Poverty Rate

Nearby Cities

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)