Platte County, Missouri Population 2024

113,310

Platte County, Missouri's estimated 2024 population is 113,310 with a growth rate of 1.22% in the past year according to the most recent United States census data. Platte County, Missouri is the 10th largest county in Missouri. The 2010 population was 89,714 and has seen a growth of 26.3% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
2029120,1601,3701.15%
2028118,7901,3701.17%
2027117,4201,3701.18%
2026116,0501,3701.19%
2025114,6801,3701.21%
2024113,3101,3701.22%
2023111,9401,3701.24%
2022110,5701,8261.68%
2021108,7441,5511.45%
2020107,1932,4672.36%
2019104,7261,7731.72%
2018102,9531,6971.68%
2017101,2562,4852.52%
201698,7712,2192.3%
201596,5521,6051.69%
201494,9471,5121.62%
201393,4351,2321.34%
201292,2031,2911.42%
201190,9121,1981.34%
201089,71400%
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%
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%
18408,913-111,247-92.58%
2024 Growth Rate
1.22% (1,370)
County Website
Platte County
County Seat
Platte City
2020 Population
107,193
Area
420 mi²
Density
270 people/mi²
Growth Since 2020
5.71% (6,117)
Founded
December 31, 1838

Population by Race

Race
Population
Percentage (of total)
White87,09881.37%
Black or African American7,9137.39%
Two or more races6,1485.74%
Asian2,8402.65%
Other race2,1592.02%
Native Hawaiian or Pacific Islander6210.58%
Native American2540.24%

White

Black or African American

Two or more races

Asian

Other race

Native Hawaiian or Pacific Islander

Native American

Platte County, Missouri Population by Race

Platte County, Missouri Population Pyramid 2024

Platte County, Missouri Median Age

38.7

Total

38.1

Male

39.3

Female

Platte County, Missouri Adults

There are 82,011 adults, (16,454 of whom are seniors) in Platte County, Missouri.

Platte County, Missouri Age Dependency

63.3

Age Dependency Ratio

25.1

Old Age Dependency Ratio

38.2

Child Dependency Ratio

Platte County, Missouri Sex Ratio

Female53,80150.27%
Male53,23249.73%

Platte County, Missouri Population by Age

Platte County, Missouri Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All42,6062.4966.433.6
Married22,3573.0983.116.9
Non Family14,1791.347.252.8
Female3,9513.1747.552.5
Male2,1192.915446

3.02

Average Family Size

2.49

Average Household Size

66.4%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Platte County, Missouri Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade1,9332.63%
Associates Degree5,6857.75%
Bachelors Degree20,22227.56%
Graduate Degree12,29416.75%
High School Graduate15,92721.71%
Less Than 9th Grade7311%
Some College16,58422.6%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Platte County, Missouri Educational Attainment by Sex (over 25)

Platte County, Missouri Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White59,77958,13827,638
Black4,7484,4581,425
Hispanic3,9933,4941,325
2+ Races3,2042,9401,231
Asian2,0721,9551,069
Other Race1,2571,068360
Islander34634553
Native American16716337

The highest rate of high school graduation is among islander people with a rate of 99.71%.

The highest rate of bachelors degrees is among asian people with a rate of 51.59%.

Platte County, Missouri Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$68,410$86,947$53,989
Graduate Degree$78,750$98,188$66,497
High School Graduate$37,540$53,295$31,816
Less Than 9th Grade$30,656$37,391$23,065
Overall$55,232$66,646$46,490
Some College$47,819$51,200$42,291

$55,232

Average Earnings

$66,646

Average Male

$46,490

Average Female

Platte County, Missouri Earnings by Educational Attainment

Platte County, Missouri Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Platte County, Missouri Language

92.3% of Platte County, Missouri residents speak only English, while 7.7% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.81% of the population.

Platte County, Missouri Language

Platte County, Missouri Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White83,3755,3316.39%
Black7,78484210.82%
Hispanic7,03773110.39%
Multiple6,1036019.85%
Other2,13627712.97%
Islander6107612.46%
Asian2,740210.77%
Native25431.18%

6.96%

Overall Poverty Rate

6.44%

Male Poverty Rate

7.48%

Female Poverty Rate

Poverty in Platte County, Missouri

The race most likely to be in poverty in Platte County, Missouri is Other, with 12.97% below the poverty level.

The race least likely to be in poverty in Platte County, Missouri is Asian, with 0.77% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.06%. Among those working part-time, it was 8.42%, and for those that did not work, the poverty rate was 14.59%.

Platte County, Missouri Poverty

rate

Rate
Poverty
Less Than 9th Grade14.86%
High School9.89%
Some College5.24%
Bachelors or Greater2.84%

Platte County, Missouri Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed22.47%
Male Unemployed8.91%
Female Employed3.24%
Male Employed2.74%

Platte County, Missouri Poverty Rate by Employment Status and Sex

Platte County, Missouri Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$111,610$139,189
Households$92,543$117,776
Married Families$126,853$156,734
Non Families$53,738$70,607

mean

median

Income by Household Type

Platte County, Missouri Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

54.4%

Overall Marriage Rate

55.6%

Male Marriage Rate

53.2%

Female Marriage Rate

Platte County, Missouri Married by Age and Sex

male

female

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

Married

Widowed

Divorced

Separated

NeverMarried

Platte County, Missouri Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

7,059

Number of Veterans

6,542

Male Veterans

517

Female Veterans

War
Veterans
First Gulf War2,293
Second Gulf War2,151
Vietnam2,076
Korea396
World War II164

Platte County, Missouri Veterans by War

count

Age Group
Veterans
35 to 541,903
65 to 741,641
55 to 641,430
75+1,398
18 to 34687

Platte County, Missouri Veterans by Age

count

Name
Veterans
% of Total
White6,0909%
Black3876.85%
Hispanic3336.96%
Other Race22115.35%
Islander15843.53%
2+ Races1504.04%
Native American2913.81%
Asian241.01%

Platte County, Missouri Veterans by Race

Platte County, Missouri Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.17%

Veteran Poverty Rate

29.83%

Veteran Disability Rate

Platte County, Missouri Veterans by Education

LaborForceParticipation

70.2%

Labor Force Participation

67%

Employment Rate

3.6%

Unemployment Rate

Platte County, Missouri Employment by Age

LaborForceParticipation

Platte County, Missouri Employment by Race

LaborForceParticipation

Platte County, Missouri Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

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

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

48.7%

Born in Platte County, Missouri

94.1%

Native Born

5.9%

Foreign Born

2.05%

Non Citizen

3.84%

Naturalized

Place of Birth

94.1% of Platte County, Missouri residents were born in the United States, with 48.7% having been born in Missouri. 2.05% 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

Sources