Groton, SD Demographics

A map of Groton's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	1,522	1,278	90.0%	92.6%
Hispanic	88	46	5.2%	3.3%
Asian	36	10	2.1%	0.7%
Multiracial	23	36	1.4%	2.6%
Native American/Other	22	8	1.3%	0.6%
Black	0	2	0.0%	0.1%

Groton, South Dakota has an estimated population of 1,691, a large increase from the 1,380 recorded in the 2020 Census. The population is 90.0% White, 5.2% Hispanic, 2.1% Asian, 1.4% Multiracial, 1.3% Native American/Other, and 0.0% Black. This demographic dot map shows the population of Groton, with one dot drawn for each person counted by the Census, color-coded by race.

Groton has become 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 Groton, that probability was 14.1% in 2020 and 18.6% in the most recent ACS estimates.

Groton is ranked the 48th 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). Groton was ranked the 51st most populous place in the 2020 Census.

Groton's White Population

1,522 residents of Groton, or 90.0% of the population, identify as White. The share of White residents in Groton is considerably higher than in South Dakota overall, where 79.8% of the population is White. Groton ranks 169th statewide in terms of White residents as a share of the population, out of 485 places.

Since the 2020 Census, Groton's White population has grown by an estimated 19.1%. White residents' share of Groton's population has decreased from 92.6% to 90.0%.

Groton is more White than neighboring Ferney (0% White). Groton is less White than neighboring Andover (100% White), Verdon (100% White), Hutterville Colony (100% White), and Bath (100% White).

Groton's Black Population

0 residents of Groton, or 0.0% of the population, identify as Black. The share of Black residents in Groton is slightly lower than in South Dakota overall, where 2.1% of the population is Black. Groton ranks 167th statewide in terms of Black residents as a share of the population, out of 485 places.

Since the 2020 Census, Groton's Black population has declined by an estimated 100.0%. Black residents' share of Groton's population has remained roughly unchanged at 0.0%.

Groton's Asian Population

36 residents of Groton, or 2.1% of the population, identify as Asian. The share of Asian residents in Groton is comparable to the share in South Dakota overall, where 1.4% of the population is Asian. Groton ranks 76th statewide in terms of Asian residents as a share of the population, out of 485 places.

Since the 2020 Census, Groton's Asian population has grown by an estimated 260.0%. Asian residents' share of Groton's population has increased from 0.7% to 2.1%.

Groton is more Asian than neighboring Ferney (0% Asian), Andover (0% Asian), Verdon (0% Asian), Hutterville Colony (0% Asian), and Bath (0% Asian).

Groton's Hispanic Population

88 residents of Groton, or 5.2% of the population, identify as Hispanic. The share of Hispanic residents in Groton is comparable to the share in South Dakota overall, where 4.8% of the population is Hispanic. Groton ranks 164th statewide in terms of Hispanic residents as a share of the population, out of 485 places.

Since the 2020 Census, Groton's Hispanic population has grown by an estimated 91.3%. Hispanic residents' share of Groton's population has increased from 3.3% to 5.2%.

Groton is more Hispanic than neighboring Ferney (0% Hispanic), Andover (0% Hispanic), Verdon (0% Hispanic), Hutterville Colony (0% Hispanic), and Bath (0% Hispanic).

Groton's Native American/Other Population

22 residents of Groton, or 1.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Groton is lower than in South Dakota overall, where 7.5% of the population is Native American/Other. Groton ranks 322nd statewide in terms of Native American/Other residents as a share of the population, out of 485 places.

Since the 2020 Census, Groton's Native American/Other population has grown by an estimated 175.0%. Native American/Other residents' share of Groton's population has increased from 0.6% to 1.3%.

Groton is more Native American/Other than neighboring Ferney (0% Native American/Other), Andover (0% Native American/Other), Verdon (0% Native American/Other), Hutterville Colony (0% Native American/Other), and Bath (0% Native American/Other).

Groton's Multiracial Population

23 residents of Groton, or 1.4% of the population, identify as Multiracial. The share of Multiracial residents in Groton is slightly lower than in South Dakota overall, where 4.4% of the population is Multiracial. Groton ranks 257th statewide in terms of Multiracial residents as a share of the population, out of 485 places.

Since the 2020 Census, Groton's Multiracial population has declined by an estimated 36.1%. Multiracial residents' share of Groton's population has decreased from 2.6% to 1.4%.

Groton is more Multiracial than neighboring Ferney (0% Multiracial), Andover (0% Multiracial), Verdon (0% Multiracial), Hutterville Colony (0% Multiracial), and Bath (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.