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CITY

Duncan

Iowa · 21 residents · 0.79 sq mi
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The short version

Duncan is a city of 21 people in Iowa. The median age is 55.3, about 16 years above the US median. 0% of adults hold a bachelor's degree, below the 36% national rate. The poverty rate is 57.1%, above the 12.5% national rate. Owners hold 0% of the housing stock. There are 20 fewer people here than in 2023.

At a glance
Older
median age 55.3
US median: 38.9
Less educated
0% hold a bachelor's degree
US average: 36%
Renter-heavy
0% owner-occupied
US average: 65%
Section 01

Population & growth

Total population
21
−49%since 2023
from 41 in 2023
2010 – 2024
Population density
27 / sq mi
−49%since 2023
from 52 / sq mi in 2023
US average: 281
Median age
55.3
Unchangedsince 2023
from 55.4 in 2023
US average: 38.9
Land area
0.79 sq mi
Population, 2010 – 2024
84684123161201020202024Duncan
202421
201020202024
Age distribution, 2024
Under 50%(0)
US avg: 5.6%
5 to 90%(0)
US avg: 6%
10 to 140%(0)
US avg: 6.4%
15 to 1942.9%(9)
US avg: 6.6%
20 to 240%(0)
US avg: 6.5%
25 to 340%(0)
US avg: 13.7%
35 to 440%(0)
US avg: 13.2%
45 to 540%(0)
US avg: 12.2%
55 to 6423.8%(5)
US avg: 12.7%
65 to 7433.3%(7)
US avg: 10.2%
75 to 840%(0)
US avg: 5.1%
85 and over0%(0)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Per capita income
$18,767
+42%since 2023
from $13,249 in 2023
US average: $44,673
Households earning $100K+
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 53.3%
Poverty rate
57.1%
−20.9 ptssince 2023
from 78.0% in 2023
US average: 12.5%
Workforce by industry, 2024
Agriculture, forestry, fishing0%
US avg: 1.6%
Construction0%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
Wholesale trade0%
US avg: 6.9%
Retail trade0%
US avg: 9.9%
Transportation & warehousing0%
US avg: 2.2%
Information0%
US avg: 10.8%
Finance & insurance0%
US avg: 5.9%
Professional, scientific, technical0%
US avg: 5.1%
Education & health services0%
US avg: 0.9%
Arts, entertainment, food0%
US avg: 1.9%
Other services0%
US avg: 6.7%
Public administration0%
US avg: 4.8%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Owner-occupied
0.0%
−71.4 ptssince 2023
from 71.4% in 2023
100.0% rent
Vacancy rate
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 10.0%
Renter cost-burdened
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 47.4%
Section 04

Race & ethnicity

2023
White, non-Hispanic100%(41)
Black0%(0)
Hispanic / Latino0%(0)
Asian0%(0)
Other0%(0)
2024
White, non-Hispanic100%(21)
Black0%(0)
Hispanic / Latino0%(0)
Asian0%(0)
Other0%(0)
Diversity Score
0
from 0 in 2023
2011 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins

Detailed origins & ancestry

Ancestry
German33.3%(7)
Norwegian23.8%(5)
Scottish23.8%(5)
Section 05

Education

Bachelor's degree or higher
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 35.6%
High school or higher
100.0%
+31.3 ptssince 2023
from 68.8% in 2023
US average: 89.6%
Graduate degree
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 14.0%
Section 07

Work & employment

Unemployment rate
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 5.2%
Labor force participation
66.7%
+35.0 ptssince 2023
from 31.7% in 2023
US average: 63.5%
Women 20-64 in the labor force
100.0%
US average: 74.6%
Self-employed
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 13.1%
Management & professional
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 42.5%
Section 08

People & community

Male
76.2%
−14.1 ptssince 2023
from 90.2% in 2023
Female
23.8%
+14.1 ptssince 2023
from 9.8% in 2023
Foreign born
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 14.1%
Veterans
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 6.2%
With a disability
100.0%
Unchangedsince 2023
from 100.0% in 2023
US average: 13.3%
Uninsured
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 8.4%
Broadband at home
100.0%
+71.4 ptssince 2023
from 28.6% in 2023
US average: 91.0%
Computer in household
100.0%
US average: 95.5%
Same house as last year
100.0%
US average: 87.7%
English only at home
100.0%
Unchangedsince 2023
from 100.0% in 2023
US average: 77.7%
Spanish at home
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 13.6%
Marital status
Men 15+
Never married100%(16)
Married0%(0)
Widowed0%(0)
Divorced0%(0)
Women 15+
Never married0%(0)
Married0%(0)
Widowed0%(0)
Divorced100%(5)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Uninsured
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 8.4%
Employer-based
0.0%
US average: 54.8%
Direct-purchase
0.0%
US average: 13.8%
Medicare
33.3%
US average: 18.4%
Medicaid
100.0%
US average: 20.9%
VA health care
0.0%
US average: 2.2%
Any private
0.0%
US average: 67.1%
Any public
100.0%
US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Drill deeper

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DUNCAN VS
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Frequently asked

How many people live in Duncan, Iowa?

Duncan, Iowa has about 21 residents according to the 2024 American Community Survey.

How educated are people in Duncan, Iowa?

About 0.0% of adults age 25 and over in Duncan, Iowa hold a bachelor's degree or higher.

What is the poverty rate in Duncan, Iowa?

About 57.1% of people in Duncan, Iowa live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →