Belle Fourche, SD Demographics

A map of Belle Fourche's Population by Race

Belle Fourche, South Dakota has an estimated population of 5,804, an increase from the 5,617 recorded in the 2020 Census. The population is 89.5% White, 5.2% Hispanic, 4.2% Multiracial, 1.1% Native American/Other, 0.0% Black, and 0.0% Asian. This demographic dot map shows the population of Belle Fourche, with one dot drawn for each person counted by the Census, color-coded by race.

Belle Fourche has become less 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 Belle Fourche, that probability was 24.0% in 2020 and 19.4% in the most recent ACS estimates.

Belle Fourche is ranked the 19th 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). Belle Fourche was ranked the 18th most populous place in the 2020 Census.

Belle Fourche's White Population

5,196 residents of Belle Fourche, or 89.5% of the population, identify as White. The share of White residents in Belle Fourche is higher than in South Dakota overall, where 79.8% of the population is White. Belle Fourche ranks 303rd statewide in terms of White residents as a share of the population, out of 485 places.

Since the 2020 Census, Belle Fourche's White population has grown by an estimated 6.5%. White residents' share of Belle Fourche's population has increased from 86.8% to 89.5%.

Belle Fourche is more White than neighboring Fruitdale (51.5% White), Spearfish (87.3% White), and Mountain Plains (82.9% White). Belle Fourche is less White than neighboring North Spearfish (93.5% White), and St. Onge (100% White).

Belle Fourche's Black Population

0 residents of Belle Fourche, or 0.0% of the population, identify as Black. The share of Black residents in Belle Fourche is slightly lower than in South Dakota overall, where 2.1% of the population is Black. Belle Fourche ranks 152nd statewide in terms of Black residents as a share of the population, out of 485 places.

Since the 2020 Census, Belle Fourche's Black population has declined by an estimated 100.0%. Black residents' share of Belle Fourche's population has remained roughly unchanged at 0.0%.

Belle Fourche is less Black than neighboring North Spearfish (1.6% Black), and Spearfish (0.2% Black).

Belle Fourche's Asian Population

0 residents of Belle Fourche, or 0.0% of the population, identify as Asian. The share of Asian residents in Belle Fourche is comparable to the share in South Dakota overall, where 1.4% of the population is Asian. Belle Fourche ranks 142nd statewide in terms of Asian residents as a share of the population, out of 485 places.

Since the 2020 Census, Belle Fourche's Asian population has declined by an estimated 100.0%. Asian residents' share of Belle Fourche's population has remained roughly unchanged at 0.0%.

Belle Fourche is less Asian than neighboring Spearfish (0.6% Asian), and Mountain Plains (7.4% Asian).

Belle Fourche's Hispanic Population

301 residents of Belle Fourche, or 5.2% of the population, identify as Hispanic. The share of Hispanic residents in Belle Fourche is comparable to the share in South Dakota overall, where 4.8% of the population is Hispanic. Belle Fourche ranks 84th statewide in terms of Hispanic residents as a share of the population, out of 485 places.

Since the 2020 Census, Belle Fourche's Hispanic population has remained roughly the same. Hispanic residents' share of Belle Fourche's population has remained roughly unchanged at 5.2%.

Belle Fourche is more Hispanic than neighboring North Spearfish (2.9% Hispanic), Fruitdale (0% Hispanic), Spearfish (3.9% Hispanic), St. Onge (0% Hispanic), and Mountain Plains (0.6% Hispanic).

Belle Fourche's Native American/Other Population

61 residents of Belle Fourche, or 1.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Belle Fourche is lower than in South Dakota overall, where 7.5% of the population is Native American/Other. Belle Fourche ranks 192nd statewide in terms of Native American/Other residents as a share of the population, out of 485 places.

Since the 2020 Census, Belle Fourche's Native American/Other population has declined by an estimated 55.5%. Native American/Other residents' share of Belle Fourche's population has decreased from 2.4% to 1.1%.

Belle Fourche is more Native American/Other than neighboring St. Onge (0% Native American/Other), and Mountain Plains (0% Native American/Other). Belle Fourche is less Native American/Other than neighboring North Spearfish (2% Native American/Other), Fruitdale (3.7% Native American/Other), and Spearfish (3.9% Native American/Other).

Belle Fourche's Multiracial Population

246 residents of Belle Fourche, or 4.2% of the population, identify as Multiracial. The share of Multiracial residents in Belle Fourche is comparable to the share in South Dakota overall, where 4.4% of the population is Multiracial. Belle Fourche ranks 113th statewide in terms of Multiracial residents as a share of the population, out of 485 places.

Since the 2020 Census, Belle Fourche's Multiracial population has declined by an estimated 11.8%. Multiracial residents' share of Belle Fourche's population has decreased from 5.0% to 4.2%.

Belle Fourche is more Multiracial than neighboring North Spearfish (0% Multiracial), Spearfish (4.1% Multiracial), and St. Onge (0% Multiracial). Belle Fourche is less Multiracial than neighboring Fruitdale (44.8% Multiracial), and 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.