Altamont, SD Demographics

A map of Altamont's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	37	29	80.4%	90.6%
Hispanic	5	1	10.9%	3.1%
Multiracial	4	0	8.7%	0.0%
Black	0	1	0.0%	3.1%
Asian	0	0	0.0%	0.0%
Native American/Other	0	1	0.0%	3.1%

Altamont, South Dakota has an estimated population of 46, a dramatic increase from the 32 recorded in the 2020 Census. The population is 80.4% White, 10.9% Hispanic, 8.7% Multiracial, 0.0% Black, 0.0% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of Altamont, with one dot drawn for each person counted by the Census, color-coded by race.

Altamont has become considerably more racially diverse since the 2020 Census. It is 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 Altamont, that probability was 17.6% in 2020 and 33.4% in the most recent ACS estimates.

Altamont is ranked the 378th 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). Altamont was ranked the 420th most populous place in the 2020 Census.

Altamont's White Population

37 residents of Altamont, or 80.4% of the population, identify as White. The share of White residents in Altamont is comparable to the share in South Dakota overall, where 79.8% of the population is White. Altamont ranks 228th statewide in terms of White residents as a share of the population, out of 485 places.

Since the 2020 Census, Altamont's White population has grown by an estimated 27.6%. White residents' share of Altamont's population has decreased from 90.6% to 80.4%.

Altamont is less White than neighboring Clear Lake (96.2% White), Goodwin (100% White), Brandt (93.9% White), La Bolt (87.5% White), and Revillo (95.5% White).

Altamont's Black Population

0 residents of Altamont, or 0.0% of the population, identify as Black. The share of Black residents in Altamont is slightly lower than in South Dakota overall, where 2.1% of the population is Black. Altamont ranks 8th statewide in terms of Black residents as a share of the population, out of 485 places.

Since the 2020 Census, Altamont's Black population has declined by an estimated 100.0%. Black residents' share of Altamont's population has decreased from 3.1% to 0.0%.

Altamont is less Black than neighboring Clear Lake (0.2% Black), and Brandt (1.2% Black).

Altamont's Asian Population

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

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

Altamont is less Asian than neighboring Clear Lake (0.3% Asian).

Altamont's Hispanic Population

5 residents of Altamont, or 10.9% of the population, identify as Hispanic. The share of Hispanic residents in Altamont is higher than in South Dakota overall, where 4.8% of the population is Hispanic. Altamont ranks 174th statewide in terms of Hispanic residents as a share of the population, out of 485 places.

Since the 2020 Census, Altamont's Hispanic population has grown by an estimated 400.0%. Hispanic residents' share of Altamont's population has increased from 3.1% to 10.9%.

Altamont is more Hispanic than neighboring Clear Lake (0% Hispanic), Goodwin (0% Hispanic), Brandt (4.9% Hispanic), La Bolt (8.8% Hispanic), and Revillo (4.5% Hispanic).

Altamont's Native American/Other Population

0 residents of Altamont, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Altamont is lower than in South Dakota overall, where 7.5% of the population is Native American/Other. Altamont ranks 163rd statewide in terms of Native American/Other residents as a share of the population, out of 485 places.

Since the 2020 Census, Altamont's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Altamont's population has decreased from 3.1% to 0.0%.

Altamont is less Native American/Other than neighboring La Bolt (3.8% Native American/Other).

Altamont's Multiracial Population

4 residents of Altamont, or 8.7% of the population, identify as Multiracial. The share of Multiracial residents in Altamont is slightly higher than in South Dakota overall, where 4.4% of the population is Multiracial. Altamont ranks 405th statewide in terms of Multiracial residents as a share of the population, out of 485 places.

Since the 2020 Census, Altamont's Multiracial population has grown from 0 to an estimated 4. Multiracial residents' share of Altamont's population has increased from 0.0% to 8.7%.

Altamont is more Multiracial than neighboring Clear Lake (3.3% Multiracial), Goodwin (0% Multiracial), Brandt (0% Multiracial), La Bolt (0% Multiracial), and Revillo (0% 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.