Dorchester County Population

1900–2026

181.96K

2026 projection

12.3% since 2020 (increase)

050K100K150K200K1900192019401960198020002020

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 Dorchester County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026181,955+3,5581.99%
2025178,397+3,5582.04%
2024174,839+4,9572.92%
2023169,882+3,7572.26%
2022166,125+2,5971.59%
2021163,528+1,4720.91%
2020162,056-1,4610.89%
2019163,517+2,1771.35%
2018161,340+1,8071.13%
2017159,533+3,1151.99%

Showing 10 of 27 years.

Dorchester County Demographics

38median age

Median age

Female38.8 yrs
Male37.1 yrs

Adults

126,948
25,407 seniors (65+) · 20% of adults101,541 other adults

Sex

Female 51.2% · 85,603Male 48.8% · 81,598

Population by age

MaleFemale85+ years, male: 80285+ years, female: 1,40680–84 years, male: 91880–84 years, female: 1,17975–79 years, male: 2,38275–79 years, female: 3,01770–74 years, male: 3,09870–74 years, female: 3,94665–69 years, male: 4,12765–69 years, female: 4,53260–64 years, male: 5,57060–64 years, female: 5,89155–59 years, male: 4,57555–59 years, female: 4,99850–54 years, male: 5,09250–54 years, female: 5,39545–49 years, male: 5,14645–49 years, female: 5,25440–44 years, male: 5,39940–44 years, female: 5,83035–39 years, male: 6,21535–39 years, female: 6,48230–34 years, male: 5,79430–34 years, female: 6,18225–29 years, male: 5,31825–29 years, female: 5,31820–24 years, male: 4,79220–24 years, female: 4,79915–19 years, male: 5,56615–19 years, female: 5,29710–14 years, male: 6,69610–14 years, female: 6,1785–9 years, male: 5,1575–9 years, female: 5,0990–4 years, male: 4,9510–4 years, female: 4,80085+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–42K2K4K4K6K6K

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 1,672 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

Dorchester County Income

$78,198median household income

Median household income

$78,198

Half of households earn more, half earn less

Median earnings

$50,722

Typical yearly pay for a worker 25 or older.

Poverty rate

11.4%

About 1 in 9 residents

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

Dorchester County Marital Status

51% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married51%53%49%
Never married32%35%29%
Divorced10%8%12%
Widowed5%3%8%
Separated2%1%2%

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