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COUNTY · 2000 CENSUS

Delaware County

Oklahoma · 37,077 residents · 738 sq mi
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The short version

Delaware County is home to 37,077 people in Oklahoma. At a median age of 40.8, this is an older place than the country as a whole. 79% of homes are owner-occupied. 13% of adults hold a bachelor's degree or higher. 9,007 more people live here than in 1990. Home values have risen by half since 1990, reaching $67,200.

At a glance
Lower income
below the US median
US median: $42,589
Older
median age 40.8
US median: 35.2
Less educated
13% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01

Population & growth

37,077
+32%since 1990
from 28,070 in 1990
1990 – 2025
40.8
+2%since 1990
from 39.9 in 1990
US average: 35.2
Land area
738 sq mi
Population, 19902024
27K31K35K40K44K19902000201020202024Delaware County
202441K
1990201020202024
Age distribution, 2000
Under 56.1%(2,268)
US avg: 6.8%
5 to 96.7%(2,495)
US avg: 7.3%
10 to 147.2%(2,660)
US avg: 7.3%
15 to 196.7%(2,494)
US avg: 7.2%
20 to 244.7%(1,725)
US avg: 6.7%
25 to 3410.8%(4,019)
US avg: 14.2%
35 to 4413.5%(5,018)
US avg: 16%
45 to 5413.5%(4,998)
US avg: 13.4%
55 to 6413.2%(4,899)
US avg: 8.6%
65 to 7410.1%(3,744)
US avg: 6.5%
75 to 845.7%(2,104)
US avg: 4.4%
85 and over1.8%(653)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

$27,996
+14%inflation adjusted, since 1990
from $18,681 in 1990
US average: $42,589
1990 – 2024
$15,424
+61%since 1990
from $9,572 in 1990
US average: $21,522
18.3%
+1.0 ptssince 1990
from 17.2% in 1990
US average: 12.4%
Section 03

Housing

$67,200
+18%inflation adjusted, since 1990
from $43,100 in 1990
US average: $120,530
1990 – 2024
$390
−2%inflation adjusted, since 1990
from $302 in 1990
US average: $602
79.2%
Unchangedsince 1990
from 79.1% in 1990
20.8% rent
Section 04

Race & ethnicity

1990
White, non-Hispanic74%(20,768)
Black0.2%(45)
Hispanic / Latino0.8%(237)
Asian0.4%(113)
2000
White, non-Hispanic69.4%(25,745)
Black0.1%(46)
Hispanic / Latino1.8%(649)
Asian0.2%(63)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Mexican3.6%(1,499)
Spaniard0.2%(86)
Puerto Rican0.2%(69)
Salvadoran0.1%(52)
Honduran0.1%(25)
Colombian0%(14)
Cuban0%(9)
Asian origin
Hmong0.8%(349)
Filipino0.3%(112)
Chinese0.1%(58)
Vietnamese0.1%(32)
Korean0.1%(29)
Taiwanese0%(12)
Nepalese0%(12)
Pacific Islander origin
Chamorro0%(11)
Samoan0%(1)
Ancestry
German12.9%(5,309)
English11.3%(4,681)
Irish10.1%(4,180)
American4.9%(2,043)
Scottish1.7%(718)
French1.4%(586)
Scotch-Irish1.3%(542)
Italian1.1%(473)
Dutch0.9%(372)
Welsh0.9%(362)
Polish0.9%(355)
Swedish0.7%(304)
+ 22 more ancestry groups with data
Norwegian0.6%(237)
Russian0.3%(143)
British0.3%(124)
Portuguese0.2%(103)
West Indian0.2%(103)
Iranian0.2%(75)
Swiss0.2%(63)
Belgian0.1%(56)
Czech0.1%(50)
Australian0.1%(45)
Canadian0.1%(40)
Danish0.1%(35)
Austrian0.1%(30)
Arab0%(12)
Hungarian0%(10)
Slovak0%(8)
Greek0%(2)
Section 05

Education

13.3%
+2.5 ptssince 1990
from 10.8% in 1990
US average: 24.4%
High school or higher
75.4%
+9.2 ptssince 1990
from 66.2% in 1990
US average: 80.3%
5.1%
+1.5 ptssince 1990
from 3.5% in 1990
US average: 8.8%
Section 06

Commute & transportation

19.1 min
−30%since 1990
from 27.3 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status
Men 15+
Never married18.5%(2,671)
Married66.6%(9,599)
Widowed3.3%(476)
Divorced11.5%(1,664)
Women 15+
Never married13.1%(1,982)
Married64.2%(9,741)
Widowed12.2%(1,856)
Divorced10.5%(1,596)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

13.7%
−7.8 ptssince 2013
from 21.5% in 2013
US average: 8.4%
35.5%
−0.7 ptssince 2020
from 36.2% in 2020
US average: 54.8%
Direct-purchase
17.4%
+0.3 ptssince 2020
from 17.1% in 2020
US average: 13.8%
29.4%
+1.1 ptssince 2020
from 28.3% in 2020
US average: 18.4%
25.7%
+6.2 ptssince 2020
from 19.5% in 2020
US average: 20.9%
VA health care
4.9%
−0.4 ptssince 2020
from 5.3% in 2020
US average: 2.2%
Any private
52.5%
−0.7 ptssince 2020
from 53.2% in 2020
US average: 67.1%
Any public
52.5%
+7.2 ptssince 2020
from 45.3% in 2020
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

Veterans by period of service, 2024
Gulf War (2001 or later)16.8%(476)
US avg: 26.4%
Gulf War (1990s)14.2%(403)
US avg: 24.3%
Vietnam era50.2%(1,425)
US avg: 33.1%
Korean War2.8%(79)
US avg: 4.5%
World War II1%(27)
US avg: 1%

Share of the 2,837 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
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Frequently asked

How many people live in Delaware County, Oklahoma?

Delaware County, Oklahoma has about 37,077 residents according to the 2000 Census.

What is the median household income in Delaware County, Oklahoma?

The typical household in Delaware County, Oklahoma earns about $27,996 a year. Half of households make more than that, and half make less.

Is Delaware County, Oklahoma expensive?

In Delaware County, Oklahoma, the median home is worth about $67,200, and the typical rent is about $390 a month.

How educated are people in Delaware County, Oklahoma?

About 13.3% of adults age 25 and over in Delaware County, Oklahoma hold a bachelor's degree or higher.

What is the poverty rate in Delaware County, Oklahoma?

About 18.3% of people in Delaware County, Oklahoma live below the federal poverty line.

Has Delaware County, Oklahoma grown since 1990?

Yes, Delaware County, Oklahoma has grown since 1990. The population has added about 9,007 residents, a change of about 32 percent over that period.

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

How we source and harmonize this data →