Alpena, SD Demographics

A map of Alpena's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	203	151	64.0%	71.2%
Hispanic	98	49	30.9%	23.1%
Multiracial	13	12	4.1%	5.7%
Native American/Other	3	0	0.9%	0.0%
Black	0	0	0.0%	0.0%
Asian	0	0	0.0%	0.0%

Alpena, South Dakota has an estimated population of 317, a dramatic increase from the 212 recorded in the 2020 Census. The population is 64.0% White, 30.9% Hispanic, 4.1% Multiracial, 0.9% Native American/Other, 0.0% Black, and 0.0% Asian. This demographic dot map shows the population of Alpena, with one dot drawn for each person counted by the Census, color-coded by race.

Alpena has become considerably more 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 Alpena, that probability was 43.6% in 2020 and 49.3% in the most recent ACS estimates.

Alpena is ranked the 191st 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). Alpena was ranked the 224th most populous place in the 2020 Census.

Alpena's White Population

203 residents of Alpena, or 64.0% of the population, identify as White. The share of White residents in Alpena is significantly lower than in South Dakota overall, where 79.8% of the population is White. Alpena ranks 396th statewide in terms of White residents as a share of the population, out of 485 places.

Since the 2020 Census, Alpena's White population has grown by an estimated 34.4%. White residents' share of Alpena's population has decreased from 71.2% to 64.0%.

Alpena is more White than neighboring Huron (59.8% White). Alpena is less White than neighboring Virgil (100% White), Lane (100% White), Woonsocket (87.7% White), and Wessington Springs (92.8% White).

Alpena's Black Population

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

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

Alpena is less Black than neighboring Huron (1.1% Black).

Alpena's Asian Population

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

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

Alpena is less Asian than neighboring Huron (13.1% Asian).

Alpena's Hispanic Population

98 residents of Alpena, or 30.9% of the population, identify as Hispanic. The share of Hispanic residents in Alpena is significantly higher than in South Dakota overall, where 4.8% of the population is Hispanic. Alpena ranks 6th statewide in terms of Hispanic residents as a share of the population, out of 485 places.

Since the 2020 Census, Alpena's Hispanic population has grown by an estimated 100.0%. Hispanic residents' share of Alpena's population has increased from 23.1% to 30.9%.

Alpena is more Hispanic than neighboring Virgil (0% Hispanic), Lane (0% Hispanic), Woonsocket (4.2% Hispanic), Wessington Springs (1.5% Hispanic), and Huron (18.8% Hispanic).

Alpena's Native American/Other Population

3 residents of Alpena, or 0.9% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Alpena is lower than in South Dakota overall, where 7.5% of the population is Native American/Other. Alpena ranks 345th statewide in terms of Native American/Other residents as a share of the population, out of 485 places.

Since the 2020 Census, Alpena's Native American/Other population has grown from 0 to an estimated 3. Native American/Other residents' share of Alpena's population has increased from 0.0% to 0.9%.

Alpena is more Native American/Other than neighboring Virgil (0% Native American/Other), Lane (0% Native American/Other), and Wessington Springs (0% Native American/Other). Alpena is less Native American/Other than neighboring Woonsocket (6.5% Native American/Other), and Huron (1.7% Native American/Other).

Alpena's Multiracial Population

13 residents of Alpena, or 4.1% of the population, identify as Multiracial. The share of Multiracial residents in Alpena is comparable to the share in South Dakota overall, where 4.4% of the population is Multiracial. Alpena ranks 90th statewide in terms of Multiracial residents as a share of the population, out of 485 places.

Since the 2020 Census, Alpena's Multiracial population has grown by an estimated 8.3%. Multiracial residents' share of Alpena's population has decreased from 5.7% to 4.1%.

Alpena is more Multiracial than neighboring Virgil (0% Multiracial), Lane (0% Multiracial), and Woonsocket (1.6% Multiracial). Alpena is less Multiracial than neighboring Wessington Springs (5.6% Multiracial), and Huron (5.4% 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.