Roslyn Flag

Roslyn

County:
Day County
County Seat:
No
Area (mi²):
0.218
State:
South Dakota

Roslyn is a town located in Day County, South Dakota. Roslyn has a 2026 population of 178. Roslyn is currently declining at a rate of -0.56% annually and its population has decreased by -2.73% since the most recent census, which recorded a population of 183 in 2020.

The median household income in Roslyn is $49,375 with a poverty rate of 15%. The median age in Roslyn is 53.1 years: 53.3 years for males, and 52.9 years for females. For every 100 females there are 90.9 males.

178
Total Population
816
Density (mi²)
-1 -0.56%
Growth

Roslyn Population

Roslyn Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026178-1-0.56%
2025179-1-0.56%
2024180-4-2.17%
202318410.55%
202218310.55%
2021182-1-0.55%
2020183-1-0.54%
2019169-2-1.17%
2018171-1-0.58%
2017172-1-0.58%
201617300%
2015173-1-0.57%
2014174-4-2.25%
2013178-1-0.56%
2012179-5-2.72%
201118410.55%
2010183-1-0.54%

Median Age

Overall: 53.1 years
Female: 52.9 years
Male: 53.3 years

Roslyn Adults

There are 118 adults, (58 of whom are seniors) in Roslyn.

Sex Ratio

Female: 77 (52.4%)
Male: 70 (47.6%)

Demographics

The racial composition of Roslyn includes 81.63% White, 8.84% Native American, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White12081.63%
Two or more races149.52%
Native American138.84%
Race
Population ↓
Percentage (of total)
White12081.63%
Two or more races149.52%
Native American138.84%

Roslyn Marital Status

Economics and Income Statistics

Roslyn 's average per capita income is $33,750. Household income levels show a median of $49,375. The poverty rate stands at 15%.

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
Married Families$78,750-
Families$52,188$64,765
Households$49,375$58,149
Non Families-$41,510

$33,750

Average Income

$49,375

Median Household Income

15%

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)