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CITY · 1990 CENSUS

Duncan

Oklahoma · 21,732 residents · 42.94 sq mi
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The short version

Duncan has lower-than-average household income, with a median household income of $23,393. Population has declined 3% since 2000. Median home value is $40,600.

At a glance
Lower income
below the US median
US median: $30,130
Older
median age 36.8
US median: 33.0
Average education
18% hold a bachelor's degree
US average: 20%
More affordable
home values down 8%, inflation adjusted
US median home: $93,722
Section 01

Population & growth

21,732
−3%vs 2000
vs 22,505 in 2000
1990 – 2025
506 / sq mi
−3%vs 2000
vs 524 / sq mi in 2000
US average: 221
36.8
−9%vs 2000
vs 40.3 in 2000
US average: 33.0
Population, 19902024
22K22K23K23K24K1990201020202024Duncan
202423K
1990201020202024
Section 02

Income & economy

$23,393
+1%inflation adjusted, since 2000
vs $30,373 in 2000
US average: $30,130
1990 – 2024
$11,906
−33%vs 2000
vs $17,643 in 2000
US average: $14,340
18.5%
+3.1 ptsvs 2000
vs 15.4% in 2000
US average: 13.2%
Section 03

Housing

$40,600
−8%inflation adjusted, since 2000
vs $58,300 in 2000
US average: $93,722
1990 – 2024
$305
+3%inflation adjusted, since 2000
vs $389 in 2000
US average: $450
69.5%
−0.2 ptsvs 2000
vs 69.7% in 2000
30.5% rent
1.7
−10%vs 2000
vs 1.9 in 2000
1990 – 2024
RELATED:See current rent listings in Duncan on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic83.3%(18,752)
Black4%(902)
Hispanic / Latino6%(1,349)
Asian0.5%(104)
Other0%
Diversity Score25.6%(5,760)
1990
White, non-Hispanic89.6%(19,465)
Black4.1%(894)
Hispanic / Latino2.6%(567)
Asian0.8%(170)
Other5.5%(1,203)
Diversity Score29.1%(6,324)
29
+14%vs 2000
vs 26 in 2000
1990 – 2024
Section 05

Education

17.9%
−1.8 ptsvs 2000
vs 19.7% in 2000
US average: 20.3%
High school or higher
72.7%
−4.1 ptsvs 2000
vs 76.8% in 2000
US average: 75.2%
4.2%
−1.7 ptsvs 2000
vs 5.8% in 2000
US average: 7.1%
Section 06

Commute & transportation

13.4 min
+2%vs 2000
vs 13.2 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

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Frequently asked

How many people live in Duncan, Oklahoma?

Duncan, Oklahoma has about 21,732 residents according to the 1990 Census.

What is the median household income in Duncan, Oklahoma?

The typical household in Duncan, Oklahoma earns about $23,393 a year. Half of households make more than that, and half make less.

Is Duncan, Oklahoma expensive?

In Duncan, Oklahoma, the median home is worth about $40,600, and the typical rent is about $305 a month.

How educated are people in Duncan, Oklahoma?

About 17.9% of adults age 25 and over in Duncan, Oklahoma hold a bachelor's degree or higher.

What is the poverty rate in Duncan, Oklahoma?

About 18.5% of people in Duncan, Oklahoma live below the federal poverty line.

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

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