Spearfish Micro
Spearfish has lower-than-average household income, with a median household income of $73,384. Population has grown 25% since 2000. Median home value has more than tripled since 2000, reaching $346,500. With a median age of 44.8, the population is older than the US median of 38.9. It sits in the top 10% of US metro areas for household income.
Population & growth
PEP 2025 EST:29,459 residents (Census Bureau Vintage 2025, released March 2026)
Income & economy
Housing
Race & ethnicity
Education
Commute & transportation
Work & employment
People & community
Principal cities
1 component county
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How many people live in Spearfish, SD?
Spearfish, SD has about 27,233 residents according to the 2024 American Community Survey.
What is the median household income in Spearfish, SD?
The typical household in Spearfish, SD earns about $73,384 a year. Half of households make more than that, and half make less.
Is Spearfish, SD expensive?
In Spearfish, SD, the median home is worth about $346,500, and the typical rent is about $938 a month.
How educated are people in Spearfish, SD?
About 32.9% of adults age 25 and over in Spearfish, SD hold a bachelor's degree or higher.
What is the poverty rate in Spearfish, SD?
About 11.6% of people in Spearfish, SD live below the federal poverty line.
Has Spearfish, SD grown since 1990?
Yes, Spearfish, SD has grown since 1990. The population has added about 6,578 residents, a change of about 32 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · METRO ROLLUP OF COMPONENT COUNTIES · UPDATED 2024