United States › Oklahoma › McClain County COUNTY · 2020 ACS
McClain County Oklahoma · 41,662 residents · 571 sq mi
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The short version
With 41,662 people, McClain County is a county in Oklahoma. Since 2000 the county has risen by half, up 13,922 people. Owners hold 80% of the housing stock. Households here earn about 30% more than in Oklahoma as a whole. 3% of residents were born outside the United States. 25% of adults hold a bachelor's degree or higher.
At a glance
Wealthier
above the US median
US median: $66,278
Mid-age
median age 39.2
US median: 38.8
Less educated
25% hold a bachelor's degree
US average: 33%
Less affordable
home values up 68%, inflation adjusted
US median home: $265,253
Section 01
Population & growth from 36.9 in 2000
US average: 38.8
Population, 1990 – 2024
21K 27K 34K 41K 48K 1990 2000 2010 2020 2024 McClain County Age distribution, 2020
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Section 02
Income & economy $70,005
+25%inflation adjusted, since 2000
from $37,275 in 2000
US average: $66,278
from $18,158 in 2000
US average: $35,364
Households earning $100K+
from 32.0% in 2009
US average: 43.9%
from 10.5% in 2000
US average: 12.8%
Workforce by industry, 2020
Agriculture, forestry, fishing 7.3%
Professional, scientific, technical 4.6%
Public administration 2.9%
Transportation & warehousing 2.2%
Education & health services 1.9%
Arts, entertainment, food 0.8%
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$183,800
+68%inflation adjusted, since 2000
from $72,800 in 2000
US average: $265,253
$784
+17%inflation adjusted, since 2000
from $446 in 2000
US average: $1,124
from 81.4% in 2000
20.2% rent
from 2.85 people in 2009
US average: 2.61
from 2.1 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04
Race & ethnicity 2000
White, non-Hispanic 85.3%(23,669)
Hispanic / Latino 4.9%(1,349)
2020
White, non-Hispanic 73.7%(30,701)
Hispanic / Latino 8.9%(3,699)
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 21 more ancestry groups with data from 15.7% in 2000
US average: 32.9%
High school or higher
from 79.3% in 2000
US average: 88.5%
from 4.0% in 2000
US average: 12.7%
Section 06
Commute & transportation from 19.3 min in 2000
US average: 26.9
from 81.1% in 2009
US average: 75.1%
from 1.9% in 2009
US average: 8.4%
Section 07
Work & employment from 4.4% in 2011
US average: 5.4%
from 64.9% in 2011
US average: 63.4%
Women 20-64 in the labor force
US average: 73.3%
from 32.1% in 2009
US average: 39.3%
Section 08
People & community from 2.8% in 2009
US average: 13.5%
from 15.2% in 2013
US average: 8.8%
Computer in household
US average: 91.9%
Marital status (2024)
Men 15+
Never married 28.1%(5,015)
Women 15+
Never married 20.7%(3,766)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 15.2% in 2013
US average: 8.8%
Direct-purchase
US average: 13.7%
VA health care
US average: 2.3%
Any private
US average: 68.1%
Any public
US average: 35.2%
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, 2020
Gulf War (2001 or later) 31.9%(788)
Gulf War (1990s) 32.6%(805)
Share of the 2,470 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.
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Drill deeper
Places similar to McClain County Head to head
Compare McClain County to nearby counties MCCLAIN COUNTY VS
Cleveland County
Income $77,068 +10%
Home value $235,700 +28%
Population 303,973 +512%
SEE FULL COMPARISON →
MCCLAIN COUNTY VS
Garvin County
Income $58,556 −16%
Home value $147,800 −20%
Population 26,377 −47%
SEE FULL COMPARISON →
MCCLAIN COUNTY VS
Grady County
Income $75,419 +8%
Home value $205,800 +12%
Population 59,128 +19%
SEE FULL COMPARISON →
MCCLAIN COUNTY VS
Pottawatomie County
Income $61,398 −12%
Home value $165,400 −10%
Population 75,102 +51%
SEE FULL COMPARISON →
Frequently asked
How many people live in McClain County, Oklahoma? McClain County, Oklahoma has about 41,662 residents according to the 2020 American Community Survey.
What is the median household income in McClain County, Oklahoma? The typical household in McClain County, Oklahoma earns about $70,005 a year. Half of households make more than that, and half make less.
Is McClain County, Oklahoma expensive? In McClain County, Oklahoma, the median home is worth about $183,800, and the typical rent is about $784 a month.
How educated are people in McClain County, Oklahoma? About 25.4% of adults age 25 and over in McClain County, Oklahoma hold a bachelor's degree or higher.
What is the poverty rate in McClain County, Oklahoma? About 7.9% of people in McClain County, Oklahoma live below the federal poverty line.
Has McClain County, Oklahoma grown since 1990? Yes, McClain County, Oklahoma has grown since 1990. The population has added about 18,867 residents, a change of about 83 percent over that period.
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