Dorchester County, South Carolina Population 2021

Dorchester County, South Carolina's estimated population is 166,991 with a growth rate of 1.27% in the past year according to the most recent United States census data. Dorchester County, South Carolina is the 13th largest county in South Carolina. The 2010 Population was 137,030 and has seen a growth of 21.86% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
2021166,9912,0911.27%
2020164,9002,0911.28%
2019162,8092,0911.30%
2018160,7181,7301.09%
2017158,9882,8151.80%
2016156,1733,3642.20%
2015152,8094,0612.73%
2014148,7483,2102.21%
2013145,5382,9302.05%
2012142,6082,4591.75%
2011140,1493,1192.28%
2010137,03053,97064.98%
199083,06024,29941.35%
198058,76126,48582.06%
197032,2767,89332.37%
196024,3831,7827.88%
195022,6012,67313.41%
194019,9289725.13%
193018,956-503-2.58%
192019,4591,5688.76%
191017,8911,5979.80%
190016,2940.00%
2021 Growth Rate
1.27%
County Website
Founded
1897
County Seat
2010 Population
137,030
Growth Since 2010
21.86%
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Dorchester County, South Carolina Population Growth

Population by Race

Race Population Percentage
White106,77967.45%
Black or African American39,72025.09%
Two or More Races5,1303.24%
Some Other Race2,9301.85%
Asian2,8661.81%
American Indian and Alaska Native6760.43%
Native Hawaiian and Other Pacific Islander1980.13%
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Dorchester County, South Carolina Population by Race

Dorchester County, South Carolina Population Pyramid $2021

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Dorchester County, South Carolina Median Age

37


Total

35.8


Male

38.2


Female

Dorchester County, South Carolina Adults

There are 119,061 adults, (21,364 of whom are seniors) in Dorchester County, South Carolina.

Dorchester County, South Carolina Age Dependency

62

Age Dependency Ratio

21.9

Old Age Dependency Ratio

40.2

Child Dependency Ratio

Dorchester County, South Carolina Sex Ratio

Female

81,222

51.31%

Male

77,077

48.69%

Dorchester County, South Carolina Population by Age

Dorchester County, South Carolina Renter vs Owner Occupied by Household Type

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Dorchester County, South Carolina Household Types

Type Owner Renter
Married84.5%15.5%
All71.7%28.3%
Non Family60.8%39.2%
Male57.2%42.8%
Female52.9%47.1%

71.7%

Rate of Home Ownership

Dorchester County, South Carolina Households and Families

Type Count Average Size Owned
All55,3512.8371.7
Married28,3333.484.5
Non Family16,9741.2260.8
Female7,8203.9452.9
Male2,2243.9157.2

3.43

Average Family Size

2.83

Average Household Size

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Dorchester County, South Carolina Households by Type

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Education Attained Count Percentage
Less Than 9th Grade3,7683.54%
9th to 12th Grade7,1826.76%
High School Graduate29,04827.32%
Some College24,41922.97%
Associates Degree11,91411.21%
Bachelors Degree19,79518.62%
Graduate Degree10,1839.58%
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Dorchester County, South Carolina Educational Attainment by Sex (over 25)

Dorchester County, South Carolina Educational Attainment by Race

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Race Total High School Bachelors
White71,76166,88323,070
Black25,54021,5154,874
Hispanic4,6293,280817
Other Race1,9941,111137
Asian1,9791,492833
2+ Races1,8691,602430
Native American47642435
Islander57575

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 42.09%.

Dorchester County, South Carolina Educational Attainment by Race

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Name Average Male Female
Overall$40,862$50,277$32,697
Less Than 9th Grade$21,520$31,051$13,834
High School Graduate$32,267$39,427$27,740
Some College$39,572$48,091$31,740
Bachelors Degree$51,416$71,900$39,030
Graduate Degree$60,816$78,720$52,933

$40,862

Average Earnings

$50,277

Average Male

$32,697

Average Female

Dorchester County, South Carolina Earnings by Educational Attainment

Dorchester County, South Carolina Language by Age

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Dorchester County, South Carolina Language

93.67% of Dorchester County, South Carolina residents speak only English, while 6.33% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 3.55% of the population.

Dorchester County, South Carolina Language

Dorchester County, South Carolina Poverty by Race

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Name Total In Poverty Poverty Rate
White100,6618,9738.91%
Black38,7077,28418.82%
Hispanic8,3541,75320.98%
Other2,80187031.06%
Multiple4,89658311.91%
Asian2,8662087.26%
Native6769213.61%

12.10%

Overall Poverty Rate

10.02%

Male Poverty Rate

14.03%

Female Poverty Rate

Poverty in Dorchester County, South Carolina

The race most likely to be in poverty in Dorchester County, South Carolina is Other, with 31.06% below the poverty level.

The race least likely to be in poverty in Dorchester County, South Carolina is Asian, with 7.26% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.23%. Among those working part-time, it was 15.29%, and for those that did not work, the poverty rate was 18.73%.

Dorchester County, South Carolina Poverty

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Name Poverty
Less Than 9th Grade27.32%
High School13.89%
Some College6.85%
Bachelors or Greater3.33%

Dorchester County, South Carolina Poverty Rate by Education

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Rate Poverty
Female Unemployed33.72%
Male Unemployed15.59%
Female Employed7.40%
Male Employed3.54%

Dorchester County, South Carolina Poverty Rate by Employment Status and Sex

Dorchester County, South Carolina Income by Household Type

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Name Median Mean
Households$63,080$79,605
Families$78,800$92,019
Married Families$91,651$106,692
Non Families$37,101$47,930
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Income by Household Type

Dorchester County, South Carolina Marital Status

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Marriage Rates

49.3%

Overall Marriage Rate

52.2%

Male Marriage Rate

46.6%

Female Marriage Rate

Dorchester County, South Carolina Married by Age and Sex

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Dorchester County, South Carolina 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.

Dorchester County, South Carolina Marital Status by Race

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Dorchester County, South Carolina Marital Status

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16,112

Number of Veterans

13,815

Male Veterans

2,297

Female Veterans

War Veterans
First Gulf War6,209
Second Gulf War5,062
Vietnam4,903
Korea418
World War II113

Dorchester County, South Carolina Veterans by War

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Age Group Veterans
35 to 545,411
55 to 643,881
65 to 743,406
75+1,828
18 to 341,586

Dorchester County, South Carolina Veterans by Age

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Name Veterans % of Total
White12,26815.08%
Black3,35311.38%
Hispanic55110.19%
Other Race1747.92%
2+ Races1245.68%
Asian1235.61%
Native American7014.46%

Dorchester County, South Carolina Veterans by Race

Dorchester County, South Carolina Veterans by Education

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5.33%

Veteran Poverty Rate

22.08%

Veteran Disability Rate

Dorchester County, South Carolina Veterans by Education

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64.3%

Labor Force Participation

60.5%

Employment Rate

4.6%

Unemployment Rate

Dorchester County, South Carolina Employment by Age

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Dorchester County, South Carolina Employment by Race

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Dorchester County, South Carolina 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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48.23%

Born in Dorchester County, South Carolina

95.04%

Native Born

4.96%

Foreign Born

2.73%

Non Citizen

2.23%

Naturalized

Place of Birth

95.04% of Dorchester County, South Carolina residents were born in the United States, with 48.23% having been born in South Carolina. 2.73% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Dorchester County, South Carolina 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