Is Spearfish the best South Dakota city for your business?

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Now you can skip hours of internet research and jump straight to getting answers with our meaningful at-a-glance Demographics Spreadsheet Report. With the most current & most popular demographic data, it's the perfect starting point for your research about Spearfish and the rest of South Dakota.

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Spearfish Population

All Spearfish population data above are from the US Census Bureau.

The population data for Spearfish are from the Census' American Community Survey 2018 5-year estimates and the Census' 2019 Population Estimates. The demographic data for Box Elder, Lennox, Pukwana, and Vermillion are the most current, comparable demographics available from the US Census Bureau, are from the American Community Survey 2018 5-year estimates, and were downloaded on 19 December 2019. Check out our FAQ section for more details.

Spearfish Demographics Summary

population icon Population

With 11,756 people, Spearfish is the 10th most populated city in the state of South Dakota out of 386 cities. But watch out, Spearfish, because Box Elder with 10,119 people and Vermillion with 10,926 people are right behind you.

race icon Race & Ethnicity

The largest Spearfish racial/ethnic groups are White (92.2%) followed by Hispanic (2.5%) and American Indian (2.2%).

income icon Median Income

In 2018, the median household income of Spearfish residents was $47,466. Spearfish households made slightly more than Lennox households ($47,375) and Pukwana households ($47,109) . However, 12.8% of Spearfish residents live in poverty.

age icon Median Age

The median age for Spearfish residents is 35.8 years young.


86% of people CANNOT find the data they're looking for on the US Census Bureau website. Source: Nielsen Norman Group

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