Stillwater, Oklahoma Population 2021

49,939
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Stillwater is a city located in Payne County Oklahoma. It is also the county seat of Payne County. With a 2020 population of 49,939, it is the 9th largest city in Oklahoma and the 790th largest city in the United States . Stillwater is currently declining at a rate of -0.36% annually but its population has increased by 9.30% since the most recent census, which recorded a population of 45,688 in 2010. Stillwater reached it's highest population of 50,479 in 2018. Spanning over 30 miles, Stillwater has a population density of 1,690 people per square mile.

The average household income in Stillwater is $57,823 with a poverty rate of 35.18%. The median rental costs in recent years comes to $832 per month, and the median house value is $184,900. The median age in Stillwater is 23.5 years, 23.1 years for males, and 23.9 years for females.

Stillwater Demographics

According to the most recent ACS, the racial composition of Stillwater was:

  • White: 77.28%
  • Asian: 6.71%
  • Two or more races: 6.43%
  • Black or African American: 4.62%
  • Native American: 4.07%
  • Other race: 0.77%
  • Native Hawaiian or Pacific Islander: 0.13%
The current population of Stillwater, Oklahoma is 49,939 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 50,479.The last official US Census in 2010 recorded the population at 45,688.

Stillwater, Oklahoma Population 2021

2019 and 2020 population is estimated by projecting the raw 2018 numbers.

Year Population Growth Growth Rate
202181,008-388-0.48%
202081,396-388-0.48%
201981,784-388-0.47%
201882,1722640.32%
201781,908580.07%
201681,8504870.59%
201581,3638431.04%
201480,5208221.02%
201379,6989731.22%
201278,7254870.62%
201178,2388221.05%
201077,4160.00%

Stillwater Metro Area Population by Year

Population by Race

Race Population Percentage
White38,60177.28%
Asian3,3546.71%
Two or More Races3,2106.43%
Black or African American2,3064.62%
American Indian and Alaska Native2,0314.07%
Some Other Race3870.77%
Native Hawaiian and Other Pacific Islander630.13%
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Stillwater Population by Race

Stillwater Population Pyramid $2021

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Stillwater Median Age

23.5


Total

23.1


Male

23.9


Female

Stillwater Adults

There are 41,988 adults, (4,576 of whom are seniors) in Stillwater.

Stillwater Age Dependency

33.5

Age Dependency Ratio

12.2

Old Age Dependency Ratio

21.3

Child Dependency Ratio

Stillwater Sex Ratio

Female

24,110

48.27%

Male

25,842

51.73%

Stillwater Population by Age

Stillwater Renter vs Owner Occupied by Household Type

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Stillwater Household Types

Type Owner Renter
Married67.8%32.2%
All37.2%62.8%
Male34.7%65.3%
Non Family21.5%78.5%
Female18.4%81.6%

37.2%

Rate of Home Ownership

Stillwater Households and Families

Type Count Average Size Owned
All18,5852.337.2
Non Family10,6401.6821.5
Married6,2473.1267.8
Female1,1773.1718.4
Male5213.4734.7

3.04

Average Family Size

2.3

Average Household Size

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Stillwater Households by Type

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Education Attained Count Percentage
Less Than 9th Grade3811.70%
9th to 12th Grade8403.76%
High School Graduate4,15518.59%
Some College4,58120.50%
Associates Degree1,4996.71%
Bachelors Degree5,72925.64%
Graduate Degree5,16223.10%
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Stillwater Educational Attainment by Sex (over 25)

Stillwater Educational Attainment by Race

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Race Total High School Bachelors
White17,15316,2748,353
Asian1,6111,5801,147
Black1,003979324
2+ Races977965417
Hispanic922741350
Native American711618310
Other Race18915263
Islander32

The highest rate of high school graduation is among 2+ races people with a rate of 98.77%.

The highest rate of bachelors degrees is among asian people with a rate of 71.20%.

Stillwater Educational Attainment by Race

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Name Average Male Female
Overall$32,222$37,639$28,329
Less Than 9th Grade$20,691$35,708$10,263
High School Graduate$25,120$31,976$18,260
Some College$25,921$25,875$26,060
Bachelors Degree$37,466$50,281$31,853
Graduate Degree$55,740$64,149$48,622

$32,222

Average Earnings

$37,639

Average Male

$28,329

Average Female

Stillwater Earnings by Educational Attainment

Stillwater Language by Age

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Stillwater Language

89.14% of Stillwater residents speak only English, while 10.86% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 3.93% of the population.

Stillwater Language

Stillwater Poverty by Race

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Name Total In Poverty Poverty Rate
White32,09310,34732.24%
Asian2,5351,33052.47%
Multiple2,9261,02735.10%
Native1,5921,00363.00%
Black1,77169239.07%
Hispanic1,92467134.88%
Other37813335.19%

35.18%

Overall Poverty Rate

35.42%

Male Poverty Rate

34.94%

Female Poverty Rate

Poverty in Stillwater

The race most likely to be in poverty in Stillwater is Native, with 63.00% below the poverty level.

The race least likely to be in poverty in Stillwater is White, with 32.24% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 8.13%. Among those working part-time, it was 58.09%, and for those that did not work, the poverty rate was 47.32%.

Stillwater Poverty

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Name Poverty
Less Than 9th Grade42.18%
Some College24.64%
High School18.82%
Bachelors or Greater9.26%

Stillwater Poverty Rate by Education

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Rate Poverty
Male Unemployed59.21%
Female Unemployed46.40%
Female Employed30.24%
Male Employed27.07%

Stillwater Poverty Rate by Employment Status and Sex

Stillwater Income by Household Type

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Name Median Mean
Households$34,309$57,823
Families$71,212$88,507
Married Families$83,970-
Non Families$19,283$33,897
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Income by Household Type

Stillwater Marital Status

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Marriage Rates

32.1%

Overall Marriage Rate

31.7%

Male Marriage Rate

32.6%

Female Marriage Rate

Stillwater Married by Age and Sex

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Stillwater Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Stillwater Marital Status by Race

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Stillwater Marital Status

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1,507

Number of Veterans

1,452

Male Veterans

55

Female Veterans

War Veterans
Vietnam552
Second Gulf War486
First Gulf War238
Korea157
World War II34

Stillwater Veterans by War

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Age Group Veterans
75+373
65 to 74317
35 to 54287
18 to 34278
55 to 64252

Stillwater Veterans by Age

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Name Veterans % of Total
White1,3084.01%
Black915.14%
Asian581.90%
Native American321.85%
Hispanic311.64%
2+ Races180.82%

Stillwater Veterans by Race

Stillwater Veterans by Education

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9.39%

Veteran Poverty Rate

35.81%

Veteran Disability Rate

Stillwater Veterans by Education

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58%

Labor Force Participation

55%

Employment Rate

4.6%

Unemployment Rate

Stillwater Employment by Age

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Stillwater Employment by Race

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Stillwater Employment by Education

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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52.25%

Born in Stillwater

89.47%

Native Born

10.53%

Foreign Born

8.35%

Non Citizen

2.18%

Naturalized

Place of Birth

89.47% of Stillwater residents were born in the United States, with 52.25% having been born in Oklahoma. 8.35% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Stillwater Place of Birth

Year Population Growth Annual Growth Rate
202149,939-180-0.36%
202050,119-180-0.36%
201950,299-180-0.36%
201850,4794400.88%
201750,0392700.54%
201649,7696341.29%
201549,1356811.41%
201448,4541,0282.17%
201347,4267031.50%
201246,7234590.99%
201146,2645021.10%
201045,7626,6971.59%
200039,0652,3890.63%
199036,676-1,592-0.42%
198038,2687,1422.09%
197031,1267,1612.65%
196023,9653,7271.70%
195020,23810,1417.20%
194010,0973,0813.71%
19307,0162,3154.09%
19204,7011,2573.16%
19103,4440.00%

Stillwater Population by Year