Spearfish, SD Demographics

A map of Spearfish's Population by Race

Spearfish, South Dakota has an estimated population of 12,930, an increase from the 12,193 recorded in the 2020 Census. The population is 87.3% White, 4.1% Multiracial, 3.9% Hispanic, 3.9% Native American/Other, 0.6% Asian, and 0.2% Black. This demographic dot map shows the population of Spearfish, with one dot drawn for each person counted by the Census, color-coded by race.

Spearfish has become more racially diverse since the 2020 Census. It is considerably less diverse than South Dakota overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Spearfish, that probability was 21.7% in 2020 and 23.3% in the most recent ACS estimates.

Spearfish is ranked the 10th most populous place in South Dakota, out of 485 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Spearfish was ranked the 10th most populous place in the 2020 Census.

Spearfish's White Population

11,290 residents of Spearfish, or 87.3% of the population, identify as White. The share of White residents in Spearfish is higher than in South Dakota overall, where 79.8% of the population is White. Spearfish ranks 274th statewide in terms of White residents as a share of the population, out of 485 places.

Since the 2020 Census, Spearfish's White population has grown by an estimated 4.9%. White residents' share of Spearfish's population has decreased from 88.3% to 87.3%.

Spearfish is more White than neighboring Mountain Plains (82.9% White). Spearfish is less White than neighboring North Spearfish (93.5% White), St. Onge (100% White), Central City (99.3% White), and Deadwood (90.3% White).

Spearfish's Black Population

25 residents of Spearfish, or 0.2% of the population, identify as Black. The share of Black residents in Spearfish is comparable to the share in South Dakota overall, where 2.1% of the population is Black. Spearfish ranks 63rd statewide in terms of Black residents as a share of the population, out of 485 places.

Since the 2020 Census, Spearfish's Black population has declined by an estimated 69.1%. Black residents' share of Spearfish's population has remained roughly unchanged at 0.2%.

Spearfish is more Black than neighboring Mountain Plains (0% Black), St. Onge (0% Black), and Central City (0% Black). Spearfish is less Black than neighboring North Spearfish (1.6% Black), and Deadwood (0.7% Black).

Spearfish's Asian Population

76 residents of Spearfish, or 0.6% of the population, identify as Asian. The share of Asian residents in Spearfish is comparable to the share in South Dakota overall, where 1.4% of the population is Asian. Spearfish ranks 42nd statewide in terms of Asian residents as a share of the population, out of 485 places.

Since the 2020 Census, Spearfish's Asian population has declined by an estimated 44.9%. Asian residents' share of Spearfish's population has decreased from 1.1% to 0.6%.

Spearfish is more Asian than neighboring North Spearfish (0% Asian), St. Onge (0% Asian), and Central City (0% Asian). Spearfish is less Asian than neighboring Mountain Plains (7.4% Asian), and Deadwood (1.7% Asian).

Spearfish's Hispanic Population

500 residents of Spearfish, or 3.9% of the population, identify as Hispanic. The share of Hispanic residents in Spearfish is comparable to the share in South Dakota overall, where 4.8% of the population is Hispanic. Spearfish ranks 143rd statewide in terms of Hispanic residents as a share of the population, out of 485 places.

Since the 2020 Census, Spearfish's Hispanic population has grown by an estimated 8.9%. Hispanic residents' share of Spearfish's population has remained roughly unchanged at 3.9%.

Spearfish is more Hispanic than neighboring Mountain Plains (0.6% Hispanic), North Spearfish (2.9% Hispanic), St. Onge (0% Hispanic), and Central City (0% Hispanic). Spearfish is less Hispanic than neighboring Deadwood (4.5% Hispanic).

Spearfish's Native American/Other Population

509 residents of Spearfish, or 3.9% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Spearfish is slightly lower than in South Dakota overall, where 7.5% of the population is Native American/Other. Spearfish ranks 199th statewide in terms of Native American/Other residents as a share of the population, out of 485 places.

Since the 2020 Census, Spearfish's Native American/Other population has grown by an estimated 82.4%. Native American/Other residents' share of Spearfish's population has increased from 2.3% to 3.9%.

Spearfish is more Native American/Other than neighboring Mountain Plains (0% Native American/Other), North Spearfish (2% Native American/Other), St. Onge (0% Native American/Other), Central City (0.7% Native American/Other), and Deadwood (0.6% Native American/Other).

Spearfish's Multiracial Population

530 residents of Spearfish, or 4.1% of the population, identify as Multiracial. The share of Multiracial residents in Spearfish is comparable to the share in South Dakota overall, where 4.4% of the population is Multiracial. Spearfish ranks 163rd statewide in terms of Multiracial residents as a share of the population, out of 485 places.

Since the 2020 Census, Spearfish's Multiracial population has grown by an estimated 12.3%. Multiracial residents' share of Spearfish's population has remained roughly unchanged at 4.1%.

Spearfish is more Multiracial than neighboring North Spearfish (0% Multiracial), St. Onge (0% Multiracial), Central City (0% Multiracial), and Deadwood (2.3% Multiracial). Spearfish is less Multiracial than neighboring Mountain Plains (9.1% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.