Platte County, Missouri Population 2021

Platte County, Missouri's estimated population is 107,726 with a growth rate of 1.56% in the past year according to the most recent United States census data. Platte County, Missouri is the 12th largest county inMissouri. The 2010 Population was 89,702 and has seen a growth of 20.09% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Annual Growth Rate
2021107,7261,6541.56%
2020106,0721,6541.58%
2019104,4181,6541.61%
2018102,7641,6231.60%
2017101,1412,5002.53%
201698,6412,1962.28%
201596,4451,5861.67%
201494,8591,4921.60%
201393,3671,2161.32%
201292,1511,2711.40%
201190,8801,1781.31%
201089,70231,83555.01%
199057,86711,52624.87%
198046,34114,26044.45%
197032,0818,73137.39%
196023,3508,37755.95%
195014,9731,1118.01%
194013,862430.31%
193013,819-177-1.26%
192013,996-433-3.00%
191014,429-1,764-10.89%
190016,193-55-0.34%
189016,248-1,118-6.44%
188017,366140.08%
187017,352-998-5.44%
186018,3501,5058.93%
185016,8457,93288.99%
18408,9130.00%
2021 Growth Rate
1.56% (1,654)
County Website
Founded
December 31, 1838
County Seat
2010 Population
89,702
Growth Since 2010
20.09% (18,024)
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Platte County, Missouri Population Growth

Population by Race

Race Population Percentage
White85,90085.32%
Black or African American6,8256.78%
Two or More Races3,6683.64%
Asian2,7572.74%
Some Other Race7670.76%
Native Hawaiian and Other Pacific Islander4800.48%
American Indian and Alaska Native2850.28%
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Platte County, Missouri Population by Race

Platte County, Missouri Population Pyramid $2021

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Platte County, Missouri Median Age

38.2


Total

37.2


Male

39.1


Female

Platte County, Missouri Adults

There are 76,733 adults, (14,383 of whom are seniors) in Platte County, Missouri.

Platte County, Missouri Age Dependency

61.5

Age Dependency Ratio

23.1

Old Age Dependency Ratio

38.4

Child Dependency Ratio

Platte County, Missouri Sex Ratio

Female

50,952

50.61%

Male

49,730

49.39%

Platte County, Missouri Population by Age

Platte County, Missouri Renter vs Owner Occupied by Household Type

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Platte County, Missouri Household Types

Type Owner Renter
Non Family45.6%54.4%
Male46.2%53.8%
Female48.5%51.5%
All65.9%34.1%
Married83.9%16.1%

65.9%

Rate of Home Ownership

Platte County, Missouri Households and Families

Type Count Average Size Owned
All39,3052.5465.9
Married20,5203.1683.9
Non Family13,3201.3245.6
Female3,4693.2348.5
Male1,9963.0946.2

3.1

Average Family Size

2.54

Average Household Size

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Platte County, Missouri Households by Type

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Education Attained Count Percentage
Less Than 9th Grade8891.30%
9th to 12th Grade1,9962.92%
High School Graduate15,09322.05%
Some College15,16522.16%
Associates Degree5,7838.45%
Bachelors Degree18,09426.44%
Graduate Degree11,42716.69%
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Platte County, Missouri Educational Attainment by Sex (over 25)

Platte County, Missouri Educational Attainment by Race

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Race Total High School Bachelors
White57,69055,71925,474
Black4,1233,8501,398
Hispanic3,4183,0581,308
Asian1,8461,6901,013
2+ Races1,3021,105339
Other Race551451193
Native American250239112
Islander24424414

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 asian people with a rate of 54.88%.

Platte County, Missouri Educational Attainment by Race

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Name Average Male Female
Overall$49,337$57,516$41,998
Less Than 9th Grade$30,738$31,082$30,318
High School Graduate$35,389$42,348$26,941
Some College$42,043$47,713$35,777
Bachelors Degree$58,538$73,508$48,263
Graduate Degree$71,865$89,598$63,250

$49,337

Average Earnings

$57,516

Average Male

$41,998

Average Female

Platte County, Missouri Earnings by Educational Attainment

Platte County, Missouri Language by Age

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Platte County, Missouri Language

92.11% of Platte County, Missouri residents speak only English, while 7.89% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.73% of the population.

Platte County, Missouri Language

Platte County, Missouri Poverty by Race

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Name Total In Poverty Poverty Rate
White80,9274,3545.38%
Black6,63191113.74%
Hispanic5,95673512.34%
Multiple3,4772507.19%
Other763759.83%
Asian2,733230.84%
Native285186.32%

6.22%

Overall Poverty Rate

5.13%

Male Poverty Rate

7.29%

Female Poverty Rate

Poverty in Platte County, Missouri

The race most likely to be in poverty in Platte County, Missouri is Black, with 13.74% below the poverty level.

The race least likely to be in poverty in Platte County, Missouri is Asian, with 0.84% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.46%. Among those working part-time, it was 10.65%, and for those that did not work, the poverty rate was 10.19%.

Platte County, Missouri Poverty

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Name Poverty
Less Than 9th Grade15.49%
High School7.39%
Some College6.28%
Bachelors or Greater1.92%

Platte County, Missouri Poverty Rate by Education

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Rate Poverty
Female Unemployed32.11%
Male Unemployed16.56%
Female Employed4.05%
Male Employed2.63%

Platte County, Missouri Poverty Rate by Employment Status and Sex

Platte County, Missouri Income by Household Type

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Name Median Mean
Households$80,393$101,450
Families$98,059$120,500
Married Families$111,308$134,801
Non Families$46,282$60,785
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Income by Household Type

Platte County, Missouri Marital Status

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Marriage Rates

53.0%

Overall Marriage Rate

54.5%

Male Marriage Rate

51.6%

Female Marriage Rate

Platte County, Missouri Married by Age and Sex

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Platte County, Missouri 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 45-54.

Platte County, Missouri Marital Status by Race

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Platte County, Missouri Marital Status

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6,924

Number of Veterans

6,252

Male Veterans

672

Female Veterans

War Veterans
Vietnam2,237
Second Gulf War2,004
First Gulf War1,937
Korea315
World War II267

Platte County, Missouri Veterans by War

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Age Group Veterans
35 to 541,969
65 to 741,681
55 to 641,216
75+1,210
18 to 34848

Platte County, Missouri Veterans by Age

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Name Veterans % of Total
White6,2339.43%
Black4829.53%
Hispanic2716.65%
2+ Races1076.03%
Islander7930.62%
Native American145.60%
Asian90.41%

Platte County, Missouri Veterans by Race

Platte County, Missouri Veterans by Education

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3.59%

Veteran Poverty Rate

27.16%

Veteran Disability Rate

Platte County, Missouri Veterans by Education

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71.1%

Labor Force Participation

67.9%

Employment Rate

3.8%

Unemployment Rate

Platte County, Missouri Employment by Age

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Platte County, Missouri Employment by Race

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Platte County, Missouri 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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49.47%

Born in Platte County, Missouri

94.49%

Native Born

5.51%

Foreign Born

2.47%

Non Citizen

3.04%

Naturalized

Place of Birth

94.49% of Platte County, Missouri residents were born in the United States, with 49.47% having been born in Missouri. 2.47% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Platte County, Missouri Place of Birth

  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

Sources