Sioux City, IA Demographics

A map of Sioux City's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	53,181	53,964	61.8%	62.9%
Hispanic	19,461	17,961	22.6%	20.9%
Black	5,117	4,931	5.9%	5.7%
Multiracial	4,018	3,451	4.7%	4.0%
Native American/Other	2,297	2,735	2.7%	3.2%
Asian	2,027	2,755	2.4%	3.2%

Sioux City, Iowa has an estimated population of 86,101, a less than 1% change from the 85,797 recorded in the 2020 Census. The population is 61.8% White, 22.6% Hispanic, 5.9% Black, 4.7% Multiracial, 2.7% Native American/Other, and 2.4% Asian. This demographic dot map shows the population of Sioux City, with one dot drawn for each person counted by the Census, color-coded by race.

Sioux City has become slightly more racially diverse since the 2020 Census. It is considerably more diverse than Iowa overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Sioux City, that probability was 55.4% in 2020 and 56.0% in the most recent ACS estimates.

Sioux City is ranked the 4th most populous place in Iowa, out of 1,026 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). Sioux City was ranked the 4th most populous place in the 2020 Census.

Sioux City's White Population

53,181 residents of Sioux City, or 61.8% of the population, identify as White. The share of White residents in Sioux City is significantly lower than in Iowa overall, where 82.3% of the population is White. Sioux City ranks 1013th statewide in terms of White residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sioux City's White population has declined by an estimated 1.5%. White residents' share of Sioux City's population has decreased from 62.9% to 61.8%.

Sioux City is more White than neighboring South Sioux City (26.6% White), and Dakota City (52.1% White). Sioux City is less White than neighboring Dakota Dunes (89% White), Sergeant Bluff (87.1% White), and North Sioux City (79.3% White).

Sioux City's Black Population

5,117 residents of Sioux City, or 5.9% of the population, identify as Black. The share of Black residents in Sioux City is slightly higher than in Iowa overall, where 3.8% of the population is Black. Sioux City ranks 19th statewide in terms of Black residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sioux City's Black population has grown by an estimated 3.8%. Black residents' share of Sioux City's population has remained roughly unchanged at 5.9%.

Sioux City is more Black than neighboring Dakota City (0.1% Black), Dakota Dunes (0% Black), Sergeant Bluff (0.9% Black), and North Sioux City (4.5% Black). Sioux City is less Black than neighboring South Sioux City (13.3% Black).

Sioux City's Asian Population

2,027 residents of Sioux City, or 2.4% of the population, identify as Asian. The share of Asian residents in Sioux City is comparable to the share in Iowa overall, where 2.5% of the population is Asian. Sioux City ranks 39th statewide in terms of Asian residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sioux City's Asian population has declined by an estimated 26.4%. Asian residents' share of Sioux City's population has decreased from 3.2% to 2.4%.

Sioux City is more Asian than neighboring Dakota Dunes (0% Asian). Sioux City is less Asian than neighboring South Sioux City (3.4% Asian), Dakota City (3.7% Asian), Sergeant Bluff (7.2% Asian), and North Sioux City (3.2% Asian).

Sioux City's Hispanic Population

19,461 residents of Sioux City, or 22.6% of the population, identify as Hispanic. The share of Hispanic residents in Sioux City is significantly higher than in Iowa overall, where 7.3% of the population is Hispanic. Sioux City ranks 33rd statewide in terms of Hispanic residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sioux City's Hispanic population has grown by an estimated 8.4%. Hispanic residents' share of Sioux City's population has increased from 20.9% to 22.6%.

Sioux City is more Hispanic than neighboring Dakota Dunes (9% Hispanic), Sergeant Bluff (3.2% Hispanic), and North Sioux City (7% Hispanic). Sioux City is less Hispanic than neighboring South Sioux City (52.8% Hispanic), and Dakota City (38.2% Hispanic).

Sioux City's Native American/Other Population

2,297 residents of Sioux City, or 2.7% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Sioux City is slightly higher than in Iowa overall, where 0.6% of the population is Native American/Other. Sioux City ranks 26th statewide in terms of Native American/Other residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sioux City's Native American/Other population has declined by an estimated 16.0%. Native American/Other residents' share of Sioux City's population has decreased from 3.2% to 2.7%.

Sioux City is more Native American/Other than neighboring South Sioux City (2.2% Native American/Other), Dakota City (1.6% Native American/Other), Dakota Dunes (0.6% Native American/Other), Sergeant Bluff (0% Native American/Other), and North Sioux City (0.6% Native American/Other).

Sioux City's Multiracial Population

4,018 residents of Sioux City, or 4.7% of the population, identify as Multiracial. The share of Multiracial residents in Sioux City is comparable to the share in Iowa overall, where 3.5% of the population is Multiracial. Sioux City ranks 209th statewide in terms of Multiracial residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sioux City's Multiracial population has grown by an estimated 16.4%. Multiracial residents' share of Sioux City's population has increased from 4.0% to 4.7%.

Sioux City is more Multiracial than neighboring South Sioux City (1.8% Multiracial), Dakota City (4.4% Multiracial), Dakota Dunes (1.4% Multiracial), and Sergeant Bluff (1.5% Multiracial). Sioux City 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.