Seminole County, Oklahoma Population 2020

Seminole County, Oklahoma's estimated population is 23,974 with a growth rate of -1.24% in the past year according to the most recent United States census data. Seminole County, Oklahoma is the 37th largest county in Oklahoma.

Year Population Growth Growth Rate
202023,974-302-1.24%
201924,276-302-1.23%
201824,578-302-1.21%
201724,880-257-1.02%
201625,137-264-1.04%
201525,401400.16%
201425,361-83-0.33%
201325,444520.20%
201225,392-53-0.21%
201125,445-37-0.15%
201025,482700.28%
199025,412-2,061-7.50%
198027,4732,3299.26%
197025,144-2,922-10.41%
196028,066-12,606-30.99%
195040,672-20,529-33.54%
194061,201-18,420-23.13%
193079,62155,813234.43%
192023,8083,84419.25%
191019,9645,27735.93%
190014,6870.00%
2020 Growth Rate
-1.24%
County Website
Founded
1907
County Seat
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Seminole County, Oklahoma Population Growth

Population by Race

Race Population Percentage
White17,08068.13%
American Indian and Alaska Native4,92019.62%
Two or More Races1,6626.63%
Black or African American1,1924.75%
Some Other Race1280.51%
Asian880.35%
Native Hawaiian and Other Pacific Islander10.00%
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Seminole County, Oklahoma Population Pyramid 2020

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Seminole County, Oklahoma Median Age

39.2


Total

37.3


Male

41.1


Female

Seminole County, Oklahoma Adults

There are 18,729 adults, (4,369 of whom are seniors) in Seminole County, Oklahoma.

Seminole County, Oklahoma Age Dependency

74.6

Age Dependency Ratio

30.4

Old Age Dependency Ratio

44.2

Child Dependency Ratio

Seminole County, Oklahoma Sex Ratio

Female

12,793

51.03%

Male

12,278

48.97%

Seminole County, Oklahoma Households and Families

Seminole County, Oklahoma Renter vs Owner Occupied by Household Type

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Seminole County, Oklahoma Household Types

Type Owner Renter
Married81.8%18.2%
All69.6%30.4%
Male63.9%36.1%
Non Family59.7%40.3%
Female52.9%47.1%

69.6%

Rate of Home Ownership

Type Count Average Size Owned
All9,2222.6569.6
Married4,3783.2681.8
Non Family2,9241.1959.7
Female1,2773.5952.9
Male6433.2763.9

3.2

Average Family Size

2.65

Average Household Size

5.6%

Unmarried (Opposite Sex)

0.2%

Unmarried (Same Sex)

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Seminole County, Oklahoma Education

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Education Attained Count Percentage
Less Than 9th Grade7134.33%
9th to 12th Grade1,82911.10%
High School Graduate5,61734.10%
Some College4,51327.39%
Associates Degree1,4818.99%
Bachelors Degree1,5229.24%
Graduate Degree7994.85%
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Seminole County, Oklahoma Educational Attainment by Race

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Name Total High School Bachelors
White11,77510,0991,672
Native American2,6052,123322
Multiple Races799664147
Black716599110
Hispanic54542049
Other Race1076212
Asian714815
Islander111

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 100.00%.

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Name Average Male Female
Overall$30,637$36,364$25,726
Less Than High School$20,479$23,693$14,803
High School Grad$30,119$36,000$21,934
Some College$30,102$36,156$26,010
Bachelors Degree$36,818$47,222$30,530
Graduate Degree$52,273$62,083$45,882

$30,637

Average Earnings

$36,364

Average Male

$25,726

Average Female

Seminole County, Oklahoma Language

Seminole County, Oklahoma Language by Age

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Seminole County, Oklahoma Language

94.68% of Seminole County, Oklahoma residents speak only English, while 5.32% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.47% of the population.

Seminole County, Oklahoma Poverty

Seminole County, Oklahoma Poverty by Race

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Name Total In Poverty Poverty Rate
White15,7692,73917.37%
Native4,7801,25726.30%
Multiple1,57245829.13%
Black1,14339134.21%
Hispanic1,21730525.06%
Other1194537.82%
Asian8855.68%

20.97%

Overall Poverty Rate

18.84%

Male Poverty Rate

23.03%

Female Poverty Rate

Poverty in Seminole County, Oklahoma

The race most likely to be in poverty in Seminole County, Oklahoma is Other, with 37.82% below the poverty level.

The race least likely to be in poverty in Seminole County, Oklahoma is Asian, with 5.68% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.47%. Among those working part-time, it was 23.38%, and for those that did not work, the poverty rate was 28.24%.

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Name Poverty
Less Than High School31.59%
High School19.21%
Some College14.57%
Bachelors or Greater5.37%
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Name Poverty
Female Unemployed50.35%
Male Unemployed35.94%
Female Employed11.85%
Male Employed7.69%

Seminole County, Oklahoma Income

Seminole County, Oklahoma Income by Household Type

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Name Median Mean
Households$38,706$52,415
Families$49,388$61,413
Married Families$57,966$70,302
Non Families$20,772$29,242
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Seminole County, Oklahoma Marital Status

Seminole County, Oklahoma Marital Status

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Marriage Rates

48.2%

Overall Marriage Rate

49.7%

Male Marriage Rate

46.8%

Female Marriage Rate

Seminole County, Oklahoma Married by Age and Sex

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Seminole 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.

Seminole County, Oklahoma Marital Status by Race

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Seminole County, Oklahoma Veterans

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1,948

Number of Veterans

1,851

Male Veterans

97

Female Veterans

War Veterans
Vietnam739
First Gulf War389
Second Gulf War240
Korea153
World War II69
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Age Group Veterans
65 to 74525
55 to 64438
75+434
35 to 54427
18 to 34124
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Name Veterans % of Total
White1,56311.55%
Indian2176.75%
2 or More747.91%
Black617.06%
Hispanic365.19%
Asian1926.76%
Other1311.82%
Hawaiian1100.00%

Seminole County, Oklahoma Veterans by Education

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10.41%

Veteran Poverty Rate

50.19%

Veteran Disability Rate

Seminole County, Oklahoma Employment Status

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52.3%

Labor Force Participation

48.3%

Employment Rate

7.7%

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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72.75%

Born in Oklahoma

98.27%

Native Born

1.73%

Foreign Born

1.14%

Non Citizen

0.59%

Naturalized

Place of Birth

98.27% of Seminole County, Oklahoma residents were born in the United States, with 72.75% having been born in Oklahoma. 1.14% 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