Williamston, South Carolina Population 2021

4,342
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Williamston is a city located in Anderson County South Carolina. With a 2020 population of 4,342, it is the 73rd largest city in South Carolina and the 5176th largest city in the United States . Williamston is currently growing at a rate of 0.95% annually and its population has increased by 10.37% since the most recent census, which recorded a population of 3,934 in 2010. Williamston reached it's highest population of in . Spanning over 4 miles, Williamston has a population density of 1,177 people per square mile.

The average household income in Williamston is $55,069 with a poverty rate of 12.32%. The median rental costs in recent years comes to $729 per month, and the median house value is $112,700. The median age in Williamston is 43.1 years, 38.5 years for males, and 46.2 years for females.

Williamston Demographics

According to the most recent ACS, the racial composition of Williamstonwas:

  • White: 82.37%
  • Black or African American: 14.64%
  • Two or more races: 2.99%
  • Native American: 0.00%
  • Asian: 0.00%
  • Native Hawaiian or Pacific Islander: 0.00%
  • Other race: 0.00%
The current population of Williamston, South Carolina is 4,342 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 4,260.The last official US Census in 2010 recorded the population at 3,934.

Williamston, South Carolina Population 2021

Population by Race

Race Population Percentage
White3,44382.37%
Black or African American61214.64%
Two or More Races1252.99%
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Williamston Population by Race

Williamston Population Pyramid $2021

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Williamston Median Age

43.1


Total

38.5


Male

46.2


Female

Williamston Adults

There are 3,436 adults, (959 of whom are seniors) in Williamston.

Williamston Age Dependency

68.8

Age Dependency Ratio

38.7

Old Age Dependency Ratio

30

Child Dependency Ratio

Williamston Sex Ratio

Female

2,278

54.50%

Male

1,902

45.50%

Williamston Population by Age

Williamston Renter vs Owner Occupied by Household Type

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Williamston Household Types

Type Owner Renter
Female46.6%53.4%
Non Family47.5%52.5%
All63.5%36.5%
Male71.4%28.6%
Married84.2%15.8%

63.5%

Rate of Home Ownership

Williamston Households and Families

Type Count Average Size Owned
All1,9632.1363.5
Non Family8711.0547.5
Married8312.9584.2
Female2193.0346.6
Male423.4871.4

2.92

Average Family Size

2.13

Average Household Size

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Williamston Households by Type

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Education Attained Count Percentage
Less Than 9th Grade1384.72%
9th to 12th Grade682.33%
High School Graduate1,23242.16%
Some College57419.64%
Associates Degree49616.97%
Bachelors Degree1675.72%
Graduate Degree2478.45%
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Williamston Educational Attainment by Sex (over 25)

Williamston Educational Attainment by Race

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Race Total High School Bachelors
White2,5292,368414
Black356311
2+ Races3737

The highest rate of high school graduation is among 2+ races people with a rate of 100.00%.

The highest rate of bachelors degrees is among white people with a rate of 16.37%.

Williamston Educational Attainment by Race

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Name Average Male Female
Overall$34,237$34,438$32,447
Less Than 9th Grade$18,576$$16,250
High School Graduate$31,293$32,947$24,904
Some College$41,008$41,069$39,917
Bachelors Degree$35,238$$
Graduate Degree$48,393$$47,368

$34,237

Average Earnings

$34,438

Average Male

$32,447

Average Female

Williamston Earnings by Educational Attainment

Williamston Language by Age

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Williamston Language

97.77% of Williamston residents speak only English, while 2.23% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.69% of the population.

Williamston Language

Williamston Poverty by Race

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Name Total In Poverty Poverty Rate
White3,4433419.90%
Black61217428.43%

12.32%

Overall Poverty Rate

8.52%

Male Poverty Rate

15.50%

Female Poverty Rate

Poverty in Williamston

The race most likely to be in poverty in Williamston is Black, with 28.43% below the poverty level.

The race least likely to be in poverty in Williamston is White, with 9.90% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.75%. Among those working part-time, it was 15.92%, and for those that did not work, the poverty rate was 20.36%.

Williamston Poverty

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Name Poverty
Less Than 9th Grade19.90%
High School11.28%
Some College7.01%
Bachelors or Greater0.24%

Williamston Poverty Rate by Education

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Rate Poverty
Female Unemployed78.64%
Male Unemployed24.14%
Female Employed6.14%
Male Employed1.24%

Williamston Poverty Rate by Employment Status and Sex

Williamston Income by Household Type

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Name Median Mean
Households$43,347$55,069
Families$76,974$75,116
Married Families$87,578-
Non Families$22,180$28,847
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Income by Household Type

Williamston Marital Status

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Marriage Rates

47.5%

Overall Marriage Rate

52.1%

Male Marriage Rate

43.5%

Female Marriage Rate

Williamston Married by Age and Sex

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Williamston Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 45-54.

Williamston Marital Status by Race

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Williamston Marital Status

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393

Number of Veterans

357

Male Veterans

36

Female Veterans

War Veterans
Vietnam142
Second Gulf War121
Korea53
First Gulf War19
World War II

Williamston Veterans by War

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Age Group Veterans
65 to 74121
75+109
18 to 3477
35 to 5475
55 to 6411

Williamston Veterans by Age

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Name Veterans % of Total
White34911.97%
Black449.42%

Williamston Veterans by Race

Williamston Veterans by Education

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0.25%

Veteran Poverty Rate

37.91%

Veteran Disability Rate

Williamston Veterans by Education

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63.8%

Labor Force Participation

58.5%

Employment Rate

8.3%

Unemployment Rate

Williamston Employment by Age

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Williamston Employment by Race

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Williamston 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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83.68%

Born in Williamston

99.00%

Native Born

1.00%

Foreign Born

0.53%

Non Citizen

0.48%

Naturalized

Place of Birth

99.00% of Williamston residents were born in the United States, with 83.68% having been born in South Carolina. 0.53% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Williamston Place of Birth

Note: 2020 and 2021 data is projected
Year Population Growth Annual Growth Rate
20214,342410.95%
20204,301410.96%
20194,260410.97%
20184,219410.98%
20174,178501.21%
20164,128421.03%
20154,086370.91%
20144,049340.85%
20134,015220.55%
20123,993110.28%
20113,982200.50%
20103,9621710.44%
20003,791-85-0.22%
19903,876-434-1.06%
19804,3103190.77%
19703,9912700.70%
19603,7219392.95%
19502,7822731.04%
19402,5090.00%

Williamston Population by Year