Johnson County, Missouri Population 2021

Johnson County, Missouri's estimated population is 54,944 with a growth rate of 0.81% in the past year according to the most recent United States census data. Johnson County, Missouri is the 22nd largest county in Missouri. The 2010 Population was 52,686 and has seen a growth of 4.29% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
202154,9444410.81%
202054,5034410.82%
201954,0624410.82%
201853,621-114-0.21%
201753,7352380.44%
201653,49710.00%
201553,496-514-0.95%
201454,010-129-0.24%
201354,139150.03%
201254,1248271.55%
201153,2976111.16%
201052,68610,17223.93%
199042,5143,4558.85%
198039,0594,88714.30%
197034,1725,19117.91%
196028,9818,26539.90%
195020,716-901-4.17%
194021,617-796-3.55%
193022,413-2,486-9.98%
192024,899-1,398-5.32%
191026,297-1,546-5.55%
190027,843-289-1.03%
189028,132-40-0.14%
188028,1723,52414.30%
187024,64810,00468.31%
186014,6447,18096.20%
18507,4642,99366.94%
18404,4710.00%
2021 Growth Rate
0.81%
County Website
Founded
December 13, 1834
County Seat
2010 Population
52,686
Growth Since 2010
4.29%
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Johnson County, Missouri Population Growth

Population by Race

Race Population Percentage
White47,75888.96%
Black or African American2,3264.33%
Two or More Races1,9613.65%
Asian9171.71%
Some Other Race3500.65%
American Indian and Alaska Native2160.40%
Native Hawaiian and Other Pacific Islander1540.29%
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Johnson County, Missouri Population by Race

Johnson County, Missouri Population Pyramid $2021

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Johnson County, Missouri Median Age

30.5


Total

29


Male

32.4


Female

Johnson County, Missouri Adults

There are 42,130 adults, (6,581 of whom are seniors) in Johnson County, Missouri.

Johnson County, Missouri Age Dependency

51

Age Dependency Ratio

18.5

Old Age Dependency Ratio

32.5

Child Dependency Ratio

Johnson County, Missouri Sex Ratio

Female

26,179

48.77%

Male

27,503

51.23%

Johnson County, Missouri Population by Age

Johnson County, Missouri Renter vs Owner Occupied by Household Type

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Johnson County, Missouri Household Types

Type Owner Renter
Married77%23%
All61%39%
Male47.1%52.9%
Female46.4%53.6%
Non Family42.4%57.6%

61.0%

Rate of Home Ownership

Johnson County, Missouri Households and Families

Type Count Average Size Owned
All19,8642.4861
Married10,3463.0577
Non Family6,8231.4942.4
Female1,8522.6946.4
Male8432.9547.1

2.92

Average Family Size

2.48

Average Household Size

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Johnson County, Missouri Households by Type

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Education Attained Count Percentage
Less Than 9th Grade8022.54%
9th to 12th Grade1,5704.98%
High School Graduate9,68630.72%
Some College7,63424.21%
Associates Degree2,7338.67%
Bachelors Degree5,21416.54%
Graduate Degree3,88812.33%
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Johnson County, Missouri Educational Attainment by Sex (over 25)

Johnson County, Missouri Educational Attainment by Race

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Race Total High School Bachelors
White27,89025,9637,867
Black982883262
Hispanic982860374
Asian767698404
2+ Races710650171
Other Race15312039
Native American139137
Islander1091610

The highest rate of high school graduation is among native american people with a rate of 98.56%.

The highest rate of bachelors degrees is among asian people with a rate of 52.67%.

Johnson County, Missouri Educational Attainment by Race

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Name Average Male Female
Overall$35,654$41,424$29,979
Less Than 9th Grade$21,139$23,476$18,750
High School Graduate$30,186$35,830$21,059
Some College$34,480$41,742$27,484
Bachelors Degree$38,980$44,324$32,235
Graduate Degree$51,073$72,400$47,630

$35,654

Average Earnings

$41,424

Average Male

$29,979

Average Female

Johnson County, Missouri Earnings by Educational Attainment

Johnson County, Missouri Language by Age

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Johnson County, Missouri Language

96.11% of Johnson County, Missouri residents speak only English, while 3.89% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 1.39% of the population.

Johnson County, Missouri Language

Johnson County, Missouri Poverty by Race

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Name Total In Poverty Poverty Rate
White42,2775,89613.95%
Black1,81438221.06%
Multiple1,78633518.76%
Hispanic2,18024711.33%
Asian91219821.71%
Other2905619.31%
Islander1544730.52%

14.48%

Overall Poverty Rate

13.37%

Male Poverty Rate

15.59%

Female Poverty Rate

Poverty in Johnson County, Missouri

The race most likely to be in poverty in Johnson County, Missouri is Islander, with 30.52% below the poverty level.

The race least likely to be in poverty in Johnson County, Missouri is Hispanic, with 11.33% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.71%. Among those working part-time, it was 31.19%, and for those that did not work, the poverty rate was 20.30%.

Johnson County, Missouri Poverty

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Name Poverty
Less Than 9th Grade27.10%
High School11.85%
Some College9.56%
Bachelors or Greater5.18%

Johnson County, Missouri Poverty Rate by Education

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Rate Poverty
Female Unemployed46.05%
Male Unemployed32.73%
Female Employed13.51%
Male Employed10.08%

Johnson County, Missouri Poverty Rate by Employment Status and Sex

Johnson County, Missouri Income by Household Type

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Name Median Mean
Households$55,273$66,605
Families$69,294$78,369
Married Families$76,819$86,397
Non Families$32,428$41,481
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Income by Household Type

Johnson County, Missouri Marital Status

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Marriage Rates

49.7%

Overall Marriage Rate

48.2%

Male Marriage Rate

51.3%

Female Marriage Rate

Johnson County, Missouri Married by Age and Sex

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Johnson 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 35-44.

Johnson County, Missouri Marital Status by Race

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Johnson County, Missouri Marital Status

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5,644

Number of Veterans

4,707

Male Veterans

937

Female Veterans

War Veterans
Second Gulf War2,315
First Gulf War1,696
Vietnam1,438
Korea288
World War II112

Johnson County, Missouri Veterans by War

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Age Group Veterans
35 to 541,435
18 to 341,255
65 to 741,101
55 to 641,014
75+839

Johnson County, Missouri Veterans by Age

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Name Veterans % of Total
White4,92314.03%
Black38423.44%
Hispanic21616.86%
2+ Races19319.15%
Asian9714.92%
Other Race3019.61%
Native American159.87%
Islander21.83%

Johnson County, Missouri Veterans by Race

Johnson County, Missouri Veterans by Education

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4.69%

Veteran Poverty Rate

16.92%

Veteran Disability Rate

Johnson County, Missouri Veterans by Education

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65.9%

Labor Force Participation

55.4%

Employment Rate

4.8%

Unemployment Rate

Johnson County, Missouri Employment by Age

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Johnson County, Missouri Employment by Race

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Johnson 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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56.08%

Born in Johnson County, Missouri

97.13%

Native Born

2.87%

Foreign Born

1.59%

Non Citizen

1.28%

Naturalized

Place of Birth

97.13% of Johnson County, Missouri residents were born in the United States, with 56.08% having been born in Missouri. 1.59% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Johnson 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