Gregory County is home to 4,016 people in South Dakota. Density works out to 4 people per square mile. At a median age of 44.7, this is an older place than the country as a whole. 22% of adults hold a bachelor's degree, below the 36% national rate. Home values have more than tripled since 2000, reaching $139,900. The foreign-born share is 1%.
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)11.1%(27)
US avg: 26.4%
Gulf War (1990s)22.6%(55)
US avg: 24.3%
Vietnam era51%(124)
US avg: 33.1%
Korean War5.3%(13)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 243 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.
How many people live in Gregory County, South Dakota?
Gregory County, South Dakota has about 4,016 residents according to the 2024 American Community Survey.
What is the median household income in Gregory County, South Dakota?
The typical household in Gregory County, South Dakota earns about $62,917 a year. Half of households make more than that, and half make less.
Is Gregory County, South Dakota expensive?
In Gregory County, South Dakota, the median home is worth about $139,900, and the typical rent is about $614 a month.
How educated are people in Gregory County, South Dakota?
About 22.2% of adults age 25 and over in Gregory County, South Dakota hold a bachelor's degree or higher.
What is the poverty rate in Gregory County, South Dakota?
About 9.5% of people in Gregory County, South Dakota live below the federal poverty line.
Has Gregory County, South Dakota grown since 1990?
Yes, Gregory County, South Dakota has shrunk since 1990. The population has lost about 1,343 residents, a change of about -25 percent over that period.