McClain County, Oklahoma Population 2020

McClain County, Oklahoma's estimated population is 41,287 with a growth rate of 1.60% in the past year according to the most recent United States census data. McClain County, Oklahoma is the 26th largest county in Oklahoma.

Year Population Growth Growth Rate
202041,2876511.60%
201940,6366511.63%
201839,9856511.66%
201739,3347231.87%
201638,6116261.65%
201537,9857301.96%
201437,2557862.16%
201336,4698772.46%
201235,5923921.11%
201135,2004641.34%
201034,73611,94152.38%
199022,7952,50412.34%
198020,2916,13443.33%
197014,1571,41711.12%
196012,740-1,941-13.22%
195014,681-4,524-23.56%
194019,205-2,370-10.98%
193021,5752,24911.64%
192019,3263,66723.42%
191015,6592,77121.50%
190012,8880.00%
2020 Growth Rate
1.60%
County Website
Founded
1907
County Seat
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McClain County, Oklahoma Population Growth

Population by Race

Race Population Percentage
White32,64384.49%
Two or More Races2,5536.61%
American Indian and Alaska Native2,1375.53%
Some Other Race7381.91%
Black or African American4211.09%
Asian1190.31%
Native Hawaiian and Other Pacific Islander230.06%
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McClain County, Oklahoma Population Pyramid 2020

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McClain County, Oklahoma Median Age

38.4


Total

37.2


Male

39.4


Female

McClain County, Oklahoma Adults

There are 28,680 adults, (5,812 of whom are seniors) in McClain County, Oklahoma.

McClain County, Oklahoma Age Dependency

68.9

Age Dependency Ratio

25.4

Old Age Dependency Ratio

43.5

Child Dependency Ratio

McClain County, Oklahoma Sex Ratio

Female

19,443

50.33%

Male

19,191

49.67%

McClain County, Oklahoma Households and Families

McClain County, Oklahoma Renter vs Owner Occupied by Household Type

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McClain County, Oklahoma Household Types

Type Owner Renter
Married87.7%12.3%
All79.2%20.8%
Male71.2%28.8%
Non Family68.6%31.4%
Female55.3%44.7%

79.2%

Rate of Home Ownership

Type Count Average Size Owned
All14,1592.7179.2
Married8,6973.2387.7
Non Family3,4651.1868.6
Female1,3073.1355.3
Male6903.0271.2

3.15

Average Family Size

2.71

Average Household Size

4.3%

Unmarried (Opposite Sex)

0%

Unmarried (Same Sex)

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McClain County, Oklahoma Education

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Education Attained Count Percentage
Less Than 9th Grade9313.63%
9th to 12th Grade1,6606.47%
High School Graduate8,53433.26%
Some College6,24624.35%
Associates Degree2,0648.05%
Bachelors Degree4,33116.88%
Graduate Degree1,8897.36%
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McClain County, Oklahoma Educational Attainment by Race

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Name Total High School Bachelors
White21,46619,7455,386
Hispanic1,509876163
Multiple Races1,3001,174376
Native American1,2041,086187
Other Race35713214
Black21520190
Asian63459
Islander232313

The highest rate of high school graduation is among islander people with a rate of 100.00%.

The highest rate of bachelors degrees is among islander people with a rate of 56.52%.

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Name Average Male Female
Overall$40,408$51,293$31,018
Less Than High School$27,018$33,217$14,776
High School Grad$35,541$43,576$24,716
Some College$42,017$54,350$27,359
Bachelors Degree$43,802$62,364$39,695
Graduate Degree$60,254$83,188$41,864

$40,408

Average Earnings

$51,293

Average Male

$31,018

Average Female

McClain County, Oklahoma Language

McClain County, Oklahoma Language by Age

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McClain County, Oklahoma Language

93.65% of McClain County, Oklahoma residents speak only English, while 6.35% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 5.53% of the population.

McClain County, Oklahoma Poverty

McClain County, Oklahoma Poverty by Race

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Name Total In Poverty Poverty Rate
White30,4482,2287.32%
Hispanic3,04474824.57%
Native2,10738918.46%
Other73821929.67%
Multiple2,5421385.43%
Asian1193126.05%
Black390297.44%

8.94%

Overall Poverty Rate

8.07%

Male Poverty Rate

9.79%

Female Poverty Rate

Poverty in McClain County, Oklahoma

The race most likely to be in poverty in McClain County, Oklahoma is Other, with 29.67% below the poverty level.

The race least likely to be in poverty in McClain County, Oklahoma is Multiple, with 5.43% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.83%. Among those working part-time, it was 11.90%, and for those that did not work, the poverty rate was 13.55%.

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Name Poverty
Less Than High School21.86%
High School8.57%
Some College6.50%
Bachelors or Greater1.79%
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Name Poverty
Female Unemployed22.57%
Male Unemployed9.84%
Female Employed6.09%
Male Employed4.74%

McClain County, Oklahoma Income

McClain County, Oklahoma Income by Household Type

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Name Median Mean
Households$64,492$79,843
Families$73,160$89,270
Married Families$83,155$97,813
Non Families$31,572$48,178
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McClain County, Oklahoma Marital Status

McClain County, Oklahoma Marital Status

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Marriage Rates

60.0%

Overall Marriage Rate

61.7%

Male Marriage Rate

58.3%

Female Marriage Rate

McClain County, Oklahoma Married by Age and Sex

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McClain County, Oklahoma Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44.

McClain County, Oklahoma Marital Status by Race

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McClain County, Oklahoma Veterans

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2,662

Number of Veterans

2,447

Male Veterans

215

Female Veterans

War Veterans
Vietnam979
First Gulf War730
Second Gulf War683
Korea153
World War II87
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Age Group Veterans
65 to 74768
35 to 54724
75+493
55 to 64342
18 to 34335
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Name Veterans % of Total
White2,2839.25%
2 or More20812.89%
Hispanic1126.04%
Indian977.09%
Black5820.35%
Other163.05%

McClain County, Oklahoma Veterans by Education

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7.48%

Veteran Poverty Rate

27.10%

Veteran Disability Rate

McClain County, Oklahoma Employment Status

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62.5%

Labor Force Participation

60.2%

Employment Rate

3.4%

Unemployment Rate

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Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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70.26%

Born in Oklahoma

97.02%

Native Born

2.98%

Foreign Born

2.05%

Non Citizen

0.93%

Naturalized

Place of Birth

97.02% of McClain County, Oklahoma residents were born in the United States, with 70.26% having been born in Oklahoma. 2.05% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990