Gem Flag

Gem

County:
Brown County
County Seat:
No
Area (mi²):
66.237
State:
South Dakota

Gem is located in Brown County, South Dakota. Gem has a 2025 population of 191. Gem is currently declining at a rate of -1.04% annually and its population has decreased by -3.05% since the most recent census, which recorded a population of 197 in 2020.

The average household income in Gem is $77,167 with a poverty rate of 0%.The median age in Gem is 63.6 years: 66.9 years for males, and 58.4 years for females.

191
Total Population
3
Density (mi²)
-2 -1.04%
Growth

Gem Population

Gem Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Gem includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

White (100.0%)

Race
Population
Percentage (of total)
White221100%

Gem Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Gem's average per capita income is $0. Household income levels show a median of $71,838. The poverty rate stands at 0%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Families$72,279$84,202
Married Families$72,279-
Households$71,838$77,167
Non Families--

$0

Average Income

$71,838

Median Household Income

0%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)