Dorchester County is a county of 167,201 people in South Carolina. Since 2000 the county has risen by half, up 70,788 people. That puts it in the top 6% of US counties for household income. 76% of homes are owner-occupied. The foreign-born share is 5%. 30% of adults hold a bachelor's degree or higher.
At a glance
Average income
median household income $78,198, near the US median
US median: $82,259
Mid-age
median age 38.0
US median: 38.9
Less educated
30% hold a bachelor's degree
US average: 36%
Less affordable
home values up 96%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Dorchester County
What changed most since 1990
Population83,060 → 167,201(+101%)US over the same years: +35%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)39.4%(5,812)
US avg: 26.4%
Gulf War (1990s)34%(5,009)
US avg: 24.3%
Vietnam era23.3%(3,438)
US avg: 33.1%
Korean War2%(300)
US avg: 4.5%
World War II0.9%(126)
US avg: 1%
Share of the 14,738 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Dorchester County, decade by decade
Dorchester County population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
83,060
$73,836
$175,685
17.3%
49.4
2000
96,413
$78,907
$167,957
21.4%
55.7
2010
136,555
$79,170
$246,571
24.1%
62.9
2020
161,540
$76,966
$258,164
28.2%
70.1
2024
167,201
$78,198
$329,300
29.8%
70.4
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
How many people live in Dorchester County, South Carolina?
Dorchester County, South Carolina has about 167,201 residents according to the 2024 American Community Survey.
What is the median household income in Dorchester County, South Carolina?
The typical household in Dorchester County, South Carolina earns about $78,198 a year. Half of households make more than that, and half make less.
Is Dorchester County, South Carolina expensive?
In Dorchester County, South Carolina, the median home is worth about $329,300, and the typical rent is about $1,463 a month.
How educated are people in Dorchester County, South Carolina?
About 29.8% of adults age 25 and over in Dorchester County, South Carolina hold a bachelor's degree or higher.
What is the poverty rate in Dorchester County, South Carolina?
About 11.4% of people in Dorchester County, South Carolina live below the federal poverty line.
Has Dorchester County, South Carolina grown since 1990?
Yes, Dorchester County, South Carolina has grown since 1990. The population has added about 84,141 residents, a change of about 101 percent over that period.