Spencer Flag

Spencer

County:
McCook County
County Seat:
No
Area (mi²):
0.268
State:
South Dakota

Spencer is a city located in McCook County, South Dakota. Spencer has a 2026 population of 136. Spencer is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 136 in 2020.

The median household income in Spencer is $67,188 with a poverty rate of 2.91%. The median age in Spencer is 36.8 years: 35.6 years for males, and 42.5 years for females. For every 100 females there are 123.9 males.

136
Total Population
507
Density (mi²)

Spencer Population

Spencer Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202613600%
202513600%
202413600%
202313600%
202213600%
202113600%
202013600%
201914710.68%
2018146-1-0.68%
201714710.68%
201614600%
2015146-4-2.67%
2014150-2-1.32%
201315210.66%
201215100%
2011151-3-1.95%
2010153-1-0.65%

Median Age

Overall: 36.8 years
Female: 42.5 years
Male: 35.6 years

Spencer Adults

There are 82 adults, (25 of whom are seniors) in Spencer.

Sex Ratio

Female: 46 (44.7%)
Male: 57 (55.3%)

Demographics

The racial composition of Spencer includes 97.09% White, and smaller percentages for Two or more races, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White10097.09%
Two or more races21.94%
Native American10.97%
Race
Population ↓
Percentage (of total)
White10.97%
Race
Population ↓
Percentage (of total)
White9996.12%
Two or more races21.94%
Native American10.97%

Spencer Marital Status

Economics and Income Statistics

Spencer 's average per capita income is $50,714. Household income levels show a median of $67,188. The poverty rate stands at 2.91%.

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$113,750-
Families$108,000$97,788
Households$67,188$80,872
Non Families-$55,865

$50,714

Average Income

$67,188

Median Household Income

2.91%

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)