Marion County, South Carolina Population 2020

Marion County, South Carolina's estimated population is 30,533 with a growth rate of -0.82% in the past year according to the most recent United States census data. Marion County, South Carolina is the 31st largest county in South Carolina.

Year Population Growth Growth Rate
202030,533-253-0.82%
201930,786-253-0.82%
201831,039-253-0.81%
201731,292-467-1.47%
201631,759-8-0.03%
201531,767-188-0.59%
201431,955-133-0.41%
201332,088-322-0.99%
201232,410-370-1.13%
201132,780-179-0.54%
201032,959-940-2.77%
199033,899-280-0.82%
198034,1793,90912.91%
197030,270-1,744-5.45%
196032,014-1,096-3.31%
195033,1103,0039.97%
194030,1072,88610.60%
193027,2213,50014.75%
192023,7213,12515.17%
191020,596-14,585-41.46%
190035,1815,20517.36%
189029,976-4,131-12.11%
188034,10711,94753.91%
187022,1609704.58%
186021,1903,78321.73%
185017,4073,47524.94%
184013,9322,72424.30%
183011,2081,0079.87%
182010,2011,31714.82%
18108,8841,97028.49%
18006,9140.00%
2020 Growth Rate
-0.82%
County Website
Founded
1800
County Seat
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Marion County, South Carolina Population Growth

Population by Race

Race Population Percentage
Black or African American17,91356.75%
White12,53239.71%
Some Other Race4081.29%
Two or More Races2950.93%
Asian2250.71%
American Indian and Alaska Native1890.60%
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Marion County, South Carolina Population Pyramid 2020

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Marion County, South Carolina Median Age

40.4


Total

38.4


Male

44.2


Female

Marion County, South Carolina Adults

There are 24,255 adults, (5,787 of whom are seniors) in Marion County, South Carolina.

Marion County, South Carolina Age Dependency

70.9

Age Dependency Ratio

31.3

Old Age Dependency Ratio

39.6

Child Dependency Ratio

Marion County, South Carolina Sex Ratio

Female

16,907

53.57%

Male

14,655

46.43%

Marion County, South Carolina Households and Families

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

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Marion County, South Carolina Household Types

Type Owner Renter
Married88.8%11.2%
Male77.9%22.1%
All70.6%29.4%
Non Family61.1%38.9%
Female52.1%47.9%

70.6%

Rate of Home Ownership

Type Count Average Size Owned
All11,5382.7270.6
Married4,5493.2788.8
Non Family3,9221.1961.1
Female2,6283.7852.1
Male4394.477.9

3.39

Average Family Size

2.72

Average Household Size

4%

Unmarried (Opposite Sex)

0%

Unmarried (Same Sex)

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Marion County, South Carolina Education

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Education Attained Count Percentage
Less Than 9th Grade1,3806.36%
9th to 12th Grade2,78812.85%
High School Graduate8,46639.02%
Some College4,34620.03%
Associates Degree1,5887.32%
Bachelors Degree2,1309.82%
Graduate Degree1,0014.61%
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Marion County, South Carolina Educational Attainment by Race

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Name Total High School Bachelors
Black11,6108,9621,196
White9,2137,8881,700
Hispanic537413147
Other Race373350147
Asian19416460
Native American109839
Multiple Races895619

The highest rate of high school graduation is among other race people with a rate of 93.83%.

The highest rate of bachelors degrees is among other race people with a rate of 39.41%.

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Name Average Male Female
Overall$27,509$30,661$25,386
Less Than High School$21,129$22,387$15,521
High School Grad$27,208$30,121$25,018
Some College$27,480$40,243$24,752
Bachelors Degree$31,898$35,042$30,820
Graduate Degree$42,973$48,576$42,057

$27,509

Average Earnings

$30,661

Average Male

$25,386

Average Female

Marion County, South Carolina Language

Marion County, South Carolina Language by Age

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Marion County, South Carolina Language

96.23% of Marion County, South Carolina residents speak only English, while 3.77% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.79% of the population.

Marion County, South Carolina Poverty

Marion County, South Carolina Poverty by Race

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Name Total In Poverty Poverty Rate
Black17,6725,04928.57%
White12,0661,90815.81%
Hispanic77437648.58%
Other40825462.25%
Native17315790.75%
Multiple2954414.92%

24.25%

Overall Poverty Rate

24.26%

Male Poverty Rate

24.23%

Female Poverty Rate

Poverty in Marion County, South Carolina

The race most likely to be in poverty in Marion County, South Carolina is Native, with 90.75% below the poverty level.

The race least likely to be in poverty in Marion County, South Carolina is Multiple, with 14.92% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.11%. Among those working part-time, it was 20.39%, and for those that did not work, the poverty rate was 35.09%.

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Name Poverty
Less Than High School39.43%
High School19.91%
Some College15.80%
Bachelors or Greater11.02%
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Name Poverty
Female Unemployed49.51%
Male Unemployed18.60%
Male Employed9.75%
Female Employed8.39%

Marion County, South Carolina Income

Marion County, South Carolina Income by Household Type

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Name Median Mean
Households$33,046$50,693
Families$42,150$56,169
Married Families$56,615-
Non Families$15,456$38,364
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Marion County, South Carolina Marital Status

Marion County, South Carolina Marital Status

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Marriage Rates

39.4%

Overall Marriage Rate

43.0%

Male Marriage Rate

36.3%

Female Marriage Rate

Marion County, South Carolina Married by Age and Sex

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Marion 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.

Marion County, South Carolina Marital Status by Race

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Marion County, South Carolina Veterans

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1,928

Number of Veterans

1,760

Male Veterans

168

Female Veterans

War Veterans
Vietnam755
Second Gulf War348
First Gulf War270
Korea153
World War II30
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Age Group Veterans
65 to 74566
55 to 64430
35 to 54364
75+344
18 to 34224
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Name Veterans % of Total
Black1,1158.39%
White7257.16%
Asian6032.09%
2 or More2822.40%

Marion County, South Carolina Veterans by Education

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10.11%

Veteran Poverty Rate

33.14%

Veteran Disability Rate

Marion County, South Carolina Employment Status

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51.1%

Labor Force Participation

45.9%

Employment Rate

10.1%

Unemployment Rate

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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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82.99%

Born in South Carolina

97.86%

Native Born

2.14%

Foreign Born

1.54%

Non Citizen

0.61%

Naturalized

Place of Birth

97.86% of Marion County, South Carolina residents were born in the United States, with 82.99% having been born in South Carolina. 1.54% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

  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