Spearfish Flag

Spearfish

County:
Lawrence County
County Seat:
No
Area (mi²):
17.27
State:
South Dakota

Spearfish is a city located in Lawrence County, South Dakota. Spearfish has a 2026 population of 14,592. Spearfish is currently growing at a rate of 2.78% annually and its population has increased by 19.36% since the most recent census, which recorded a population of 12,225 in 2020.

The median household income in Spearfish is $65,688 with a poverty rate of 15.23%. The median age in Spearfish is 40 years: 40.2 years for males, and 39.4 years for females. For every 100 females there are 92.8 males.

14.6K
Total Population
845
Density (mi²)
395 2.78%
Growth

Spearfish Population

Spearfish Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202614,5923952.78%
202514,1973942.85%
202413,8034893.67%
202313,3143883%
202212,9265574.5%
202112,3691691.39%
202012,2254333.67%
201911,792960.82%
201811,696170.15%
201711,6792021.76%
201611,4772712.42%
201511,2061551.4%
201411,051100.09%
201311,0413473.24%
201210,694650.61%
201110,6291000.95%
201010,529350.33%
20008,6061,64023.54%
19906,9661,71532.66%
19805,25159012.66%
19704,66197926.59%
19603,68292933.75%
19502,75300%

Median Age

Overall: 40 years
Female: 39.4 years
Male: 40.2 years

Spearfish Adults

There are 10,554 adults, (2,676 of whom are seniors) in Spearfish.

Sex Ratio

Female: 6,706 (51.9%)
Male: 6,224 (48.1%)

Demographics

The racial composition of Spearfish includes 88.47% White, 3.52% Native American, and smaller percentages for other race, Asian, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White11,43988.47%
Two or more races6625.12%
Native American4553.52%
Other race2131.65%
Asian760.59%
Black or African American630.49%
Native Hawaiian or Pacific Islander220.17%
Race
Population ↓
Percentage (of total)
Other race1731.34%
White1491.15%
Two or more races1321.02%
Black or African American380.29%
Native American80.06%
Race
Population ↓
Percentage (of total)
White11,29087.32%
Two or more races5304.1%
Native American4473.46%
Asian760.59%
Other race400.31%
Black or African American250.19%
Native Hawaiian or Pacific Islander220.17%

Spearfish Marital Status

Economics and Income Statistics

Spearfish 's average per capita income is $45,877. Household income levels show a median of $65,688. The poverty rate stands at 15.23%.

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$111,463-
Families$96,250$124,181
Households$65,688$89,843
Non Families$42,258$60,836

$45,877

Average Income

$65,688

Median Household Income

15.23%

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)