Williamston, South Carolina Population 2020

4,314

Williamston is a city located in South Carolina. With a 2020 population of 4,314, it is the 73rd largest city in South Carolina and the 5183rd largest city in the United States. Williamston is currently growing at a rate of 1.15% annually and its population has increased by 9.66% since the most recent census, which recorded a population of 3,934 in 2010. Spanning over 4 miles, Williamston has a population density of 1,170 people per square mile.

The average household income in Williamston is $51,846 with a poverty rate of 14.12%. The median rental costs in recent years comes to $750 per month, and the median house value is $104,500. The median age in Williamston is 41.9 years, 39.7 years for males, and 46.3 years for females. For every 100 females there are 93.2 males.

Williamston Demographics

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

  • White: 85.74%
  • Black or African American: 11.89%
  • Two or more races: 2.37%
  • 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 4,314, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 4,216.The last official US Census in 2010 recorded the population at 3,934.

Williamston, South Carolina Population 2020

Population by Race

Race Population Percentage
White3,54185.74%
Black or African American49111.89%
Two or More Races982.37%

Williamston Population Pyramid 2020

Williamston Median Age

41.9


Total

39.7


Male

46.3


Female

Williamston Adults

There are 3,248 adults, (907 of whom are seniors) in Williamston.

Williamston Age Dependency

76.4

Age Dependency Ratio

38.7

Old Age Dependency Ratio

37.7

Child Dependency Ratio

Williamston Sex Ratio

Female

2,138

51.77%

Male

1,992

48.23%

Williamston Households and Families

Williamston Renter vs Owner Occupied by Household Type

Williamston Household Types

Type Owner Renter
Male90%10%
Married87.7%12.3%
All70.2%29.8%
Female69.4%30.6%
Non Family52.2%47.8%

70.2%

Rate of Home Ownership

Type Count Average Size Owned
All1,8782.270.2
Non Family8331.0852.2
Married7892.9487.7
Female1863.169.4
Male704.790

3

Average Family Size

2.2

Average Household Size

5.2%

Unmarried (Opposite Sex)

0%

Unmarried (Same Sex)

Williamston Education

Education Attained Count Percentage
Less Than 9th Grade1665.77%
9th to 12th Grade1414.90%
High School Graduate1,12239.03%
Some College58920.49%
Associates Degree39913.88%
Bachelors Degree1465.08%
Graduate Degree31210.85%

Williamston Educational Attainment by Race

Name Total High School Bachelors
White2,5472,281429
Black29725629
Multiple Races3131

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

The highest rate of bachelors degrees is among white people with a rate of 16.84%.

Name Average Male Female
Overall$36,108$37,946$35,412
Less Than High School$$$15,792
High School Grad$33,523$34,602$22,163
Some College$35,467$36,055$35,148
Bachelors Degree$$$
Graduate Degree$68,302$69,505$58,393

$36,108

Average Earnings

$37,946

Average Male

$35,412

Average Female

Williamston Language

Williamston Language by Age

Williamston Language

98.21% of Williamston residents speak only English, while 1.79% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.38% of the population.

Williamston Poverty

Williamston Poverty by Race

Name Total In Poverty Poverty Rate
White3,54144012.43%
Black49114329.12%

14.12%

Overall Poverty Rate

11.19%

Male Poverty Rate

16.84%

Female Poverty Rate

Poverty in Williamston

The race most likely to be in poverty in Williamston is Black, with 29.12% below the poverty level.

The race least likely to be in poverty in Williamston is White, with 12.43% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.48%. Among those working part-time, it was 25.00%, and for those that did not work, the poverty rate was 24.95%.

Name Poverty
Less Than High School17.92%
High School15.15%
Some College8.50%
Bachelors or Greater0.22%
Name Poverty
Female Unemployed100.00%
Male Unemployed24.16%
Female Employed5.76%
Male Employed0.78%

Williamston Income

Williamston Income by Household Type

Name Median Mean
Households$42,132$51,846
Families$68,354$69,511
Married Families$78,792-
Non Families$22,176$28,891

Williamston Marital Status

Williamston Marital Status

Marriage Rates

50.2%

Overall Marriage Rate

54.8%

Male Marriage Rate

45.7%

Female Marriage Rate

Williamston Married by Age and Sex

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 35-44.

Williamston Marital Status by Race

Williamston Veterans

340

Number of Veterans

326

Male Veterans

14

Female Veterans

War Veterans
Vietnam156
Second Gulf War76
Korea47
First Gulf War46
World War II

$Williamston Veterans by Education

0.29%

Veteran Poverty Rate

33.53%

Veteran Disability Rate

Williamston Employment Status

58.6%

Labor Force Participation

52%

Employment Rate

11.3%

Unemployment Rate

Williamston Place of Birth

Origin of Non-Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

78.38%

Born in South Carolina

99.18%

Native Born

0.82%

Foreign Born

0.39%

Non Citizen

Place of Birth

99.18% of Williamston residents were born in the United States, with 78.38% having been born in South Carolina. 0.39% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Year Population Growth Annual Growth Rate
20204,314491.15%
20194,265491.16%
20184,216421.01%
20174,174491.19%
20164,125411.00%
20154,084390.96%
20144,045320.80%
20134,013220.55%
20123,991100.25%
20113,981190.48%
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%