Jefferson, SD Demographics

A map of Jefferson's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	487	439	87.9%	92.4%
Hispanic	42	13	7.6%	2.7%
Multiracial	25	13	4.5%	2.7%
Black	0	3	0.0%	0.6%
Asian	0	1	0.0%	0.2%
Native American/Other	0	6	0.0%	1.3%

Jefferson, South Dakota has an estimated population of 554, a large increase from the 475 recorded in the 2020 Census. The population is 87.9% White, 7.6% Hispanic, 4.5% Multiracial, 0.0% Black, 0.0% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of Jefferson, with one dot drawn for each person counted by the Census, color-coded by race.

Jefferson 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 Jefferson, that probability was 14.4% in 2020 and 21.9% in the most recent ACS estimates.

Jefferson is ranked the 143rd 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). Jefferson was ranked the 149th most populous place in the 2020 Census.

Jefferson's White Population

487 residents of Jefferson, or 87.9% of the population, identify as White. The share of White residents in Jefferson is higher than in South Dakota overall, where 79.8% of the population is White. Jefferson ranks 178th statewide in terms of White residents as a share of the population, out of 485 places.

Since the 2020 Census, Jefferson's White population has grown by an estimated 10.9%. White residents' share of Jefferson's population has decreased from 92.4% to 87.9%.

Jefferson is more White than neighboring North Sioux City (79.3% White). Jefferson is less White than neighboring Dakota Dunes (89% White), Elk Point (93.1% White), Ponca (91.2% White), and Jackson (97.1% White).

Jefferson's Black Population

0 residents of Jefferson, or 0.0% of the population, identify as Black. The share of Black residents in Jefferson is slightly lower than in South Dakota overall, where 2.1% of the population is Black. Jefferson ranks 66th statewide in terms of Black residents as a share of the population, out of 485 places.

Since the 2020 Census, Jefferson's Black population has declined by an estimated 100.0%. Black residents' share of Jefferson's population has decreased from 0.6% to 0.0%.

Jefferson is less Black than neighboring North Sioux City (4.5% Black), Elk Point (0.6% Black), and Ponca (0.1% Black).

Jefferson's Asian Population

0 residents of Jefferson, or 0.0% of the population, identify as Asian. The share of Asian residents in Jefferson is comparable to the share in South Dakota overall, where 1.4% of the population is Asian. Jefferson ranks 150th statewide in terms of Asian residents as a share of the population, out of 485 places.

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

Jefferson is less Asian than neighboring North Sioux City (3.2% Asian), and Elk Point (0.3% Asian).

Jefferson's Hispanic Population

42 residents of Jefferson, or 7.6% of the population, identify as Hispanic. The share of Hispanic residents in Jefferson is slightly higher than in South Dakota overall, where 4.8% of the population is Hispanic. Jefferson ranks 200th statewide in terms of Hispanic residents as a share of the population, out of 485 places.

Since the 2020 Census, Jefferson's Hispanic population has grown by an estimated 223.1%. Hispanic residents' share of Jefferson's population has increased from 2.7% to 7.6%.

Jefferson is more Hispanic than neighboring North Sioux City (7% Hispanic), Elk Point (1.4% Hispanic), Ponca (5.5% Hispanic), and Jackson (2.9% Hispanic). Jefferson is less Hispanic than neighboring Dakota Dunes (9% Hispanic).

Jefferson's Native American/Other Population

0 residents of Jefferson, 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 Jefferson is lower than in South Dakota overall, where 7.5% of the population is Native American/Other. Jefferson ranks 262nd statewide in terms of Native American/Other residents as a share of the population, out of 485 places.

Since the 2020 Census, Jefferson's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Jefferson's population has decreased from 1.3% to 0.0%.

Jefferson is less Native American/Other than neighboring North Sioux City (0.6% Native American/Other), Dakota Dunes (0.6% Native American/Other), Elk Point (0.1% Native American/Other), and Ponca (1.9% Native American/Other).

Jefferson's Multiracial Population

25 residents of Jefferson, or 4.5% of the population, identify as Multiracial. The share of Multiracial residents in Jefferson is comparable to the share in South Dakota overall, where 4.4% of the population is Multiracial. Jefferson ranks 248th statewide in terms of Multiracial residents as a share of the population, out of 485 places.

Since the 2020 Census, Jefferson's Multiracial population has grown by an estimated 92.3%. Multiracial residents' share of Jefferson's population has increased from 2.7% to 4.5%.

Jefferson is more Multiracial than neighboring Dakota Dunes (1.4% Multiracial), Ponca (1.2% Multiracial), and Jackson (0% Multiracial). Jefferson is less Multiracial than neighboring North Sioux City (5.5% 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.