Isabel, SD Demographics

A map of Isabel's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	156	99	72.9%	68.3%
Native American/Other	45	36	21.0%	24.8%
Multiracial	11	10	5.1%	6.9%
Black	2	0	0.9%	0.0%
Asian	0	0	0.0%	0.0%
Hispanic	0	0	0.0%	0.0%

Isabel, South Dakota has an estimated population of 214, a dramatic increase from the 145 recorded in the 2020 Census. The population is 72.9% White, 21.0% Native American/Other, 5.1% Multiracial, 0.9% Black, 0.0% Asian, and 0.0% Hispanic. This demographic dot map shows the population of Isabel, with one dot drawn for each person counted by the Census, color-coded by race.

Isabel has become less racially diverse since the 2020 Census. It is considerably more 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 Isabel, that probability was 46.7% in 2020 and 42.2% in the most recent ACS estimates.

Isabel is ranked the 228th 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). Isabel was ranked the 262nd most populous place in the 2020 Census.

Isabel's White Population

156 residents of Isabel, or 72.9% of the population, identify as White. The share of White residents in Isabel is lower than in South Dakota overall, where 79.8% of the population is White. Isabel ranks 399th statewide in terms of White residents as a share of the population, out of 485 places.

Since the 2020 Census, Isabel's White population has grown by an estimated 57.6%. White residents' share of Isabel's population has increased from 68.3% to 72.9%.

Isabel is more White than neighboring Green Grass (0% White), Timber Lake (48.1% White), Dupree (11.5% White), and North Eagle Butte (0.5% White). Isabel is less White than neighboring Lantry (100% White).

Isabel's Black Population

2 residents of Isabel, or 0.9% of the population, identify as Black. The share of Black residents in Isabel is comparable to the share in South Dakota overall, where 2.1% of the population is Black. Isabel ranks 183rd statewide in terms of Black residents as a share of the population, out of 485 places.

Since the 2020 Census, Isabel's Black population has grown from 0 to an estimated 2. Black residents' share of Isabel's population has increased from 0.0% to 0.9%.

Isabel is more Black than neighboring Green Grass (0% Black), Timber Lake (0.8% Black), Lantry (0% Black), Dupree (0% Black), and North Eagle Butte (0.2% Black).

Isabel's Asian Population

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

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

Isabel is less Asian than neighboring Timber Lake (0.4% Asian).

Isabel's Hispanic Population

0 residents of Isabel, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Isabel is slightly lower than in South Dakota overall, where 4.8% of the population is Hispanic. Isabel ranks 389th statewide in terms of Hispanic residents as a share of the population, out of 485 places.

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

Isabel is less Hispanic than neighboring Timber Lake (1.5% Hispanic), Dupree (1.3% Hispanic), and North Eagle Butte (0.7% Hispanic).

Isabel's Native American/Other Population

45 residents of Isabel, or 21.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Isabel is considerably higher than in South Dakota overall, where 7.5% of the population is Native American/Other. Isabel ranks 66th statewide in terms of Native American/Other residents as a share of the population, out of 485 places.

Since the 2020 Census, Isabel's Native American/Other population has grown by an estimated 25.0%. Native American/Other residents' share of Isabel's population has decreased from 24.8% to 21.0%.

Isabel is more Native American/Other than neighboring Lantry (0% Native American/Other). Isabel is less Native American/Other than neighboring Green Grass (100% Native American/Other), Timber Lake (40.1% Native American/Other), Dupree (86.5% Native American/Other), and North Eagle Butte (98.1% Native American/Other).

Isabel's Multiracial Population

11 residents of Isabel, or 5.1% of the population, identify as Multiracial. The share of Multiracial residents in Isabel is comparable to the share in South Dakota overall, where 4.4% of the population is Multiracial. Isabel ranks 56th statewide in terms of Multiracial residents as a share of the population, out of 485 places.

Since the 2020 Census, Isabel's Multiracial population has grown by an estimated 10.0%. Multiracial residents' share of Isabel's population has decreased from 6.9% to 5.1%.

Isabel is more Multiracial than neighboring Green Grass (0% Multiracial), Lantry (0% Multiracial), Dupree (0.7% Multiracial), and North Eagle Butte (0.5% Multiracial). Isabel is less Multiracial than neighboring Timber Lake (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.