Marion, SD Demographics

A map of Marion's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	913	777	93.1%	91.5%
Multiracial	44	28	4.5%	3.3%
Hispanic	12	33	1.2%	3.9%
Native American/Other	12	7	1.2%	0.8%
Black	0	4	0.0%	0.5%
Asian	0	0	0.0%	0.0%

Marion, South Dakota has an estimated population of 981, a large increase from the 849 recorded in the 2020 Census. The population is 93.1% White, 4.5% Multiracial, 1.2% Hispanic, 1.2% Native American/Other, 0.0% Black, and 0.0% Asian. This demographic dot map shows the population of Marion, with one dot drawn for each person counted by the Census, color-coded by race.

Marion 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 Marion, that probability was 16.0% in 2020 and 13.2% in the most recent ACS estimates.

Marion is ranked the 79th 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). Marion was ranked the 86th most populous place in the 2020 Census.

Marion's White Population

913 residents of Marion, or 93.1% of the population, identify as White. The share of White residents in Marion is considerably higher than in South Dakota overall, where 79.8% of the population is White. Marion ranks 203rd statewide in terms of White residents as a share of the population, out of 485 places.

Since the 2020 Census, Marion's White population has grown by an estimated 17.5%. White residents' share of Marion's population has increased from 91.5% to 93.1%.

Marion is more White than neighboring Monroe (85% White), Parker (92.6% White), Canistota (78.8% White), and Freeman (77.3% White). Marion is less White than neighboring Dolton (100% White).

Marion's Black Population

0 residents of Marion, or 0.0% of the population, identify as Black. The share of Black residents in Marion is slightly lower than in South Dakota overall, where 2.1% of the population is Black. Marion ranks 95th statewide in terms of Black residents as a share of the population, out of 485 places.

Since the 2020 Census, Marion's Black population has declined by an estimated 100.0%. Black residents' share of Marion's population has decreased from 0.5% to 0.0%.

Marion is less Black than neighboring Canistota (1.7% Black), and Freeman (0.5% Black).

Marion's Asian Population

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

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

Marion is less Asian than neighboring Freeman (0.4% Asian).

Marion's Hispanic Population

12 residents of Marion, or 1.2% of the population, identify as Hispanic. The share of Hispanic residents in Marion is slightly lower than in South Dakota overall, where 4.8% of the population is Hispanic. Marion ranks 132nd statewide in terms of Hispanic residents as a share of the population, out of 485 places.

Since the 2020 Census, Marion's Hispanic population has declined by an estimated 63.6%. Hispanic residents' share of Marion's population has decreased from 3.9% to 1.2%.

Marion is more Hispanic than neighboring Dolton (0% Hispanic). Marion is less Hispanic than neighboring Monroe (9.4% Hispanic), Parker (5.5% Hispanic), Canistota (10.3% Hispanic), and Freeman (7.7% Hispanic).

Marion's Native American/Other Population

12 residents of Marion, or 1.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Marion is lower than in South Dakota overall, where 7.5% of the population is Native American/Other. Marion ranks 300th statewide in terms of Native American/Other residents as a share of the population, out of 485 places.

Since the 2020 Census, Marion's Native American/Other population has grown by an estimated 71.4%. Native American/Other residents' share of Marion's population has remained roughly unchanged at 1.2%.

Marion is more Native American/Other than neighboring Monroe (0% Native American/Other), Parker (0.1% Native American/Other), Dolton (0% Native American/Other), Canistota (0% Native American/Other), and Freeman (1% Native American/Other).

Marion's Multiracial Population

44 residents of Marion, or 4.5% of the population, identify as Multiracial. The share of Multiracial residents in Marion is comparable to the share in South Dakota overall, where 4.4% of the population is Multiracial. Marion ranks 198th statewide in terms of Multiracial residents as a share of the population, out of 485 places.

Since the 2020 Census, Marion's Multiracial population has grown by an estimated 57.1%. Multiracial residents' share of Marion's population has increased from 3.3% to 4.5%.

Marion is more Multiracial than neighboring Parker (1.9% Multiracial), and Dolton (0% Multiracial). Marion is less Multiracial than neighboring Monroe (5.6% Multiracial), Canistota (9.3% Multiracial), and Freeman (13% 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.