Johns Island, South Carolina Population 2024

20,172

Johns Island is a city located in South Carolina. Johns Island has a 2024 population of 20,172. Johns Island is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The average household income in Johns Island is $120,144 with a poverty rate of 9.22%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Johns Island is 44 years, 39.4 years for males, and 48.1 years for females.

Johns Island Demographics

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

  • White: 73.43%
  • Black or African American: 14.66%
  • Other race: 4.43%
  • Two or more races: 4.41%
  • Native American: 3.07%
  • Asian: 0%
  • Native Hawaiian or Pacific Islander: 0%
Land Area (mi²)
75.7 sq mi
Density (mi²)
266.50/sq mi
The current population of Johns Island, South Carolina is 20,172 based on our projections of the latest US Census estimates.

Johns Island, South Carolina Population 2024

Population by Race

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Race
Population
Percentage (of total)
White14,81273.43%
Black or African American2,95714.66%
Other race8934.43%
Two or more races8904.41%
Native American6203.07%
Asian00%
Native Hawaiian or Pacific Islander00%

White

Black or African American

Other race

Two or more races

Native American

Asian

Native Hawaiian or Pacific Islander

Johns Island Population by Race

Johns Island Population Pyramid 2024

Johns Island Median Age

44

Total

39.4

Male

48.1

Female

Johns Island Adults

There are 16,874 adults, (3,805 of whom are seniors) in Johns Island.

Johns Island Age Dependency

54.3

Age Dependency Ratio

29.1

Old Age Dependency Ratio

25.2

Child Dependency Ratio

Johns Island Sex Ratio

Female10,28650.99%
Male9,88649.01%

Johns Island Population by Age

Johns Island Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All8,3232.4183.516.5
Married4,7922.6487.812.2
Non Family2,5301.583.216.8
Female7003.796535
Male3013.0961.838.2

2.77

Average Family Size

2.41

Average Household Size

83.5%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Johns Island Households and Families

Male

Female

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Education Attained
Count
Percentage
Less Than 9th Grade2741.77%
9th to 12th Grade8805.68%
High School Graduate3,14920.33%
Some College2,56916.58%
Associates Degree1,3078.44%
Bachelors Degree3,93825.42%
Graduate Degree3,37321.78%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Johns Island Educational Attainment by Sex (over 25)

Johns Island Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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Race
Total
High School
Bachelors
White11,90511,2726,619
Black1,7111,388278
Hispanic1,149956310
Other Race779668123
2+ Races578553221
Native American2511890

The highest rate of high school graduation is among 2+ races people with a rate of 95.67%.

The highest rate of bachelors degrees is among white people with a rate of 55.6%.

Johns Island Educational Attainment by Race

All

Male

Female

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Name
Average
Male
Female
Overall$58,970$62,596$54,121
Less Than 9th Grade$0$0$0
High School Graduate$33,706$51,296$23,254
Some College$47,532$60,184$39,547
Bachelors Degree$71,119$72,317$69,397
Graduate Degree$88,692$100,838$87,386

$58,970

Average Earnings

$62,596

Average Male

$54,121

Average Female

Johns Island Earnings by Educational Attainment

Johns Island Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Johns Island Language

90.94% of Johns Island residents speak only English, while 9.06% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 7.31% of the population.

Johns Island Language

Johns Island Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
Hispanic1,95564332.89%
White14,2085794.08%
Black2,88555119.1%
Native62034155%
Multiple8909210.34%
Other893879.74%

9.22%

Overall Poverty Rate

9.35%

Male Poverty Rate

9.1%

Female Poverty Rate

Poverty in Johns Island

The race most likely to be in poverty in Johns Island is Native, with 55% below the poverty level.

The race least likely to be in poverty in Johns Island is White, with 4.08% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.93%. Among those working part-time, it was 13.57%, and for those that did not work, the poverty rate was 12.59%.

Johns Island Poverty

rate

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Rate
Poverty
Less Than 9th Grade22.75%
High School13.67%
Bachelors or Greater3.67%
Some College2.54%

Johns Island Poverty Rate by Education

rate

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Rate
Poverty
Male Unemployed47.37%
Male Employed6.25%
Female Unemployed5.77%
Female Employed3.67%

Johns Island Poverty Rate by Employment Status and Sex

Johns Island Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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Name
Median
Mean
Households$103,902$120,144
Families$115,233$132,161
Married Families$124,625$-999,999,999
Non Families$73,828$91,633

mean

median

Income by Household Type

Johns Island Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

59.1%

Overall Marriage Rate

61.7%

Male Marriage Rate

56.6%

Female Marriage Rate

Johns Island Married by Age and Sex

male

female

Johns Island 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.

Johns Island Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Johns Island Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,078

Number of Veterans

1,007

Male Veterans

71

Female Veterans

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War
Veterans
Vietnam445
First Gulf War370
Second Gulf War136
Korea61
World War II9

Johns Island Veterans by War

count

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Age Group
Veterans
55 to 64387
75+249
65 to 74244
35 to 54134
18 to 3464

Johns Island Veterans by Age

count

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Name
Veterans
% of Total
White8236.54%
Black1385.85%
2+ Races9413.49%
Other Race232.58%

Johns Island Veterans by Race

Johns Island Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

0%

Veteran Poverty Rate

17.06%

Veteran Disability Rate

Johns Island Veterans by Education

LaborForceParticipation

71%

Labor Force Participation

69.1%

Employment Rate

2.1%

Unemployment Rate

Johns Island Employment by Age

LaborForceParticipation

Johns Island Employment by Race

LaborForceParticipation

Johns Island 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

43.55%

Born in Johns Island

93.99%

Native Born

6.01%

Foreign Born

3.16%

Non Citizen

2.85%

Naturalized

Place of Birth

93.99% of Johns Island residents were born in the United States, with 43.55% having been born in South Carolina. 3.16% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Johns Island Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202420,17200%

Johns Island Population by Year