Fort Thompson, SD Demographics

A map of Fort Thompson's Population by Race

Fort Thompson, South Dakota has an estimated population of 1,147, a decrease from the 1,224 recorded in the 2020 Census. The population is 92.5% Native American/Other, 4.3% White, 2.6% Multiracial, 0.6% Hispanic, 0.0% Black, and 0.0% Asian. This demographic dot map shows the population of Fort Thompson, with one dot drawn for each person counted by the Census, color-coded by race.

Fort Thompson has become slightly 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 Fort Thompson, that probability was 13.3% in 2020 and 14.2% in the most recent ACS estimates.

Fort Thompson is ranked the 71st 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). Fort Thompson was ranked the 61st most populous place in the 2020 Census.

Fort Thompson's White Population

49 residents of Fort Thompson, or 4.3% of the population, identify as White. The share of White residents in Fort Thompson is significantly lower than in South Dakota overall, where 79.8% of the population is White. Fort Thompson ranks 443rd statewide in terms of White residents as a share of the population, out of 485 places.

Since the 2020 Census, Fort Thompson's White population has grown by an estimated 6.5%. White residents' share of Fort Thompson's population has increased from 3.8% to 4.3%.

Fort Thompson is more White than neighboring Stephan (0% White). Fort Thompson is less White than neighboring Lower Brule (7.7% White), West Brule (6.6% White), Oacoma (95.8% White), and Reliance (75.8% White).

Fort Thompson's Black Population

0 residents of Fort Thompson, or 0.0% of the population, identify as Black. The share of Black residents in Fort Thompson is slightly lower than in South Dakota overall, where 2.1% of the population is Black. Fort Thompson ranks 183rd statewide in terms of Black residents as a share of the population, out of 485 places.

Since the 2020 Census, Fort Thompson's Black population has grown from 0 to an estimated 0. Black residents' share of Fort Thompson's population has remained roughly unchanged at 0.0%.

Fort Thompson's Asian Population

0 residents of Fort Thompson, or 0.0% of the population, identify as Asian. The share of Asian residents in Fort Thompson is comparable to the share in South Dakota overall, where 1.4% of the population is Asian. Fort Thompson ranks 176th statewide in terms of Asian residents as a share of the population, out of 485 places.

Since the 2020 Census, Fort Thompson's Asian population has grown from 0 to an estimated 0. Asian residents' share of Fort Thompson's population has remained roughly unchanged at 0.0%.

Fort Thompson's Hispanic Population

7 residents of Fort Thompson, or 0.6% of the population, identify as Hispanic. The share of Hispanic residents in Fort Thompson is slightly lower than in South Dakota overall, where 4.8% of the population is Hispanic. Fort Thompson ranks 383rd statewide in terms of Hispanic residents as a share of the population, out of 485 places.

Since the 2020 Census, Fort Thompson's Hispanic population has grown by an estimated 75.0%. Hispanic residents' share of Fort Thompson's population has remained roughly unchanged at 0.6%.

Fort Thompson is more Hispanic than neighboring Lower Brule (0.4% Hispanic), Stephan (0% Hispanic), West Brule (0% Hispanic), and Reliance (0% Hispanic). Fort Thompson is less Hispanic than neighboring Oacoma (2% Hispanic).

Fort Thompson's Native American/Other Population

1,061 residents of Fort Thompson, or 92.5% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Fort Thompson is significantly higher than in South Dakota overall, where 7.5% of the population is Native American/Other. Fort Thompson ranks 27th statewide in terms of Native American/Other residents as a share of the population, out of 485 places.

Since the 2020 Census, Fort Thompson's Native American/Other population has declined by an estimated 6.8%. Native American/Other residents' share of Fort Thompson's population has decreased from 93.0% to 92.5%.

Fort Thompson is more Native American/Other than neighboring Lower Brule (91.9% Native American/Other), Stephan (38.5% Native American/Other), Oacoma (2.2% Native American/Other), and Reliance (19% Native American/Other). Fort Thompson is less Native American/Other than neighboring West Brule (93.4% Native American/Other).

Fort Thompson's Multiracial Population

30 residents of Fort Thompson, or 2.6% of the population, identify as Multiracial. The share of Multiracial residents in Fort Thompson is comparable to the share in South Dakota overall, where 4.4% of the population is Multiracial. Fort Thompson ranks 226th statewide in terms of Multiracial residents as a share of the population, out of 485 places.

Since the 2020 Census, Fort Thompson's Multiracial population has declined by an estimated 16.7%. Multiracial residents' share of Fort Thompson's population has remained roughly unchanged at 2.6%.

Fort Thompson is more Multiracial than neighboring Lower Brule (0% Multiracial), West Brule (0% Multiracial), and Oacoma (0% Multiracial). Fort Thompson is less Multiracial than neighboring Stephan (61.5% Multiracial), and Reliance (5.2% 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.