Sinai, SD Demographics

A map of Sinai's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	190	94	88.4%	94.9%
Hispanic	25	2	11.6%	2.0%
Black	0	0	0.0%	0.0%
Asian	0	0	0.0%	0.0%
Native American/Other	0	0	0.0%	0.0%
Multiracial	0	3	0.0%	3.0%

Sinai, South Dakota has an estimated population of 215, a dramatic increase from the 99 recorded in the 2020 Census. The population is 88.4% White, 11.6% Hispanic, 0.0% Black, 0.0% Asian, 0.0% Native American/Other, and 0.0% Multiracial. This demographic dot map shows the population of Sinai, with one dot drawn for each person counted by the Census, color-coded by race.

Sinai has become considerably 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 Sinai, that probability was 9.7% in 2020 and 20.5% in the most recent ACS estimates.

Sinai is ranked the 227th 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). Sinai was ranked the 319th most populous place in the 2020 Census.

Sinai's White Population

190 residents of Sinai, or 88.4% of the population, identify as White. The share of White residents in Sinai is higher than in South Dakota overall, where 79.8% of the population is White. Sinai ranks 106th statewide in terms of White residents as a share of the population, out of 485 places.

Since the 2020 Census, Sinai's White population has grown by an estimated 102.1%. White residents' share of Sinai's population has decreased from 94.9% to 88.4%.

Sinai is more White than neighboring Arlington (84.6% White), and Ramona (33.1% White). Sinai is less White than neighboring Nunda (97.5% White), Spring Lake Colony (100% White), and Volga (94.1% White).

Sinai's Black Population

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

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

Sinai's Asian Population

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

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

Sinai is less Asian than neighboring Volga (0.8% Asian), and Arlington (2% Asian).

Sinai's Hispanic Population

25 residents of Sinai, or 11.6% of the population, identify as Hispanic. The share of Hispanic residents in Sinai is higher than in South Dakota overall, where 4.8% of the population is Hispanic. Sinai ranks 261st statewide in terms of Hispanic residents as a share of the population, out of 485 places.

Since the 2020 Census, Sinai's Hispanic population has grown by an estimated 1150.0%. Hispanic residents' share of Sinai's population has increased from 2.0% to 11.6%.

Sinai is more Hispanic than neighboring Nunda (0% Hispanic), Spring Lake Colony (0% Hispanic), Volga (2.5% Hispanic), and Arlington (9.6% Hispanic). Sinai is less Hispanic than neighboring Ramona (53% Hispanic).

Sinai's Native American/Other Population

0 residents of Sinai, 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 Sinai is lower than in South Dakota overall, where 7.5% of the population is Native American/Other. Sinai ranks 345th statewide in terms of Native American/Other residents as a share of the population, out of 485 places.

Since the 2020 Census, Sinai's Native American/Other population has grown from 0 to an estimated 0. Native American/Other residents' share of Sinai's population has remained roughly unchanged at 0.0%.

Sinai is less Native American/Other than neighboring Volga (0.2% Native American/Other), Arlington (0.3% Native American/Other), and Ramona (13.4% Native American/Other).

Sinai's Multiracial Population

0 residents of Sinai, or 0.0% of the population, identify as Multiracial. The share of Multiracial residents in Sinai is slightly lower than in South Dakota overall, where 4.4% of the population is Multiracial. Sinai ranks 218th statewide in terms of Multiracial residents as a share of the population, out of 485 places.

Since the 2020 Census, Sinai's Multiracial population has declined by an estimated 100.0%. Multiracial residents' share of Sinai's population has decreased from 3.0% to 0.0%.

Sinai is less Multiracial than neighboring Nunda (2.5% Multiracial), Volga (2.5% Multiracial), Arlington (3.6% Multiracial), and Ramona (0.6% 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.