Williamsburg County Population

1810–2026

29,523

2026 projection

4.5% since 2020 (decrease)

010K20K30K40K50K1850190019502000

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Williamsburg County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202629,523-1390.47%
202529,662-1390.47%
202429,801-1850.62%
202329,986-1680.56%
202230,154-2820.93%
202130,436-4781.55%
202030,914+6582.17%
201930,256-6512.11%
201830,907-2780.89%
201731,185-6912.17%

Showing 10 of 36 years.

Williamsburg County Demographics

43.2median age

Median age

Female46.8 yrs
Male40.1 yrs

Adults

24,400
6,867 seniors (65+) · 28% of adults17,533 other adults

Sex

Female 51.1% · 15,485Male 48.9% · 14,797

Population by age

MaleFemale85+ years, male: 19485+ years, female: 50780–84 years, male: 29980–84 years, female: 35275–79 years, male: 59275–79 years, female: 77470–74 years, male: 83870–74 years, female: 1,06065–69 years, male: 98865–69 years, female: 1,26360–64 years, male: 77560–64 years, female: 1,34455–59 years, male: 1,08255–59 years, female: 91250–54 years, male: 91550–54 years, female: 1,02045–49 years, male: 96745–49 years, female: 90340–44 years, male: 75640–44 years, female: 75435–39 years, male: 1,10835–39 years, female: 85430–34 years, male: 1,11130–34 years, female: 84425–29 years, male: 1,07525–29 years, female: 83520–24 years, male: 91720–24 years, female: 81915–19 years, male: 83015–19 years, female: 85810–14 years, male: 89210–14 years, female: 8935–9 years, male: 7425–9 years, female: 8250–4 years, male: 7160–4 years, female: 66885+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 303 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Williamsburg County Income

$46,213median household income

Median household income

$46,213

Half of households earn more, half earn less

Median earnings

$37,062

Typical yearly pay for a worker 25 or older.

Poverty rate

23.3%

About 1 in 4 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Williamsburg County Marital Status

38% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married38%41%36%
Never married39%43%35%
Divorced9%8%10%
Widowed9%4%14%
Separated4%4%5%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year