Sioux Falls, South Dakota demographics

Sioux Falls, SD demographics: median age 35.5; 38.1% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Sioux Falls city, South Dakota · Incorporated city · GEOID 4659020. The survey estimates a population of 201,469 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Sioux Falls is 35.5 years, with a 90% margin of error of 0.3 years. There are 85,992 households (±673). Age and household distributions show how these totals are composed; they do not establish which neighborhood suits a particular person.

Every count and share is an estimate. “±” is a 90% margin of error (MOE); pp means percentage points. Derived shares use the category count divided by the named universe. Aggregated category MOEs and percentage MOEs are approximate. A margin larger than half its estimate is flagged as low precision. Blank source uncertainty is shown as unavailable, never zero.

Age distribution and sex

City, state and U.S. estimates · ACS 2020–2024
Measure / survey universe	City estimate ± MOE	State estimate ± MOE	U.S. estimate ± MOE
Median age Total population · years	35.5 ±0.3	38.0 ±0.2	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 201,469
Category	Count ± MOE	Share ± MOE (pp)	South Dakota	U.S.
Under 18	49,219 ±1,371	24.4% ±0.7 pp	24.2%	22.0%
18–34	50,092 ±1,095	24.9% ±0.5 pp	21.9%	22.8%
35–64	73,829 ±1,755	36.6% ±0.9 pp	35.9%	38.0%
65 and older	28,329 ±1,064	14.1% ±0.5 pp	18.0%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 201,469
Category	Count ± MOE	Share ± MOE (pp)	South Dakota	U.S.
Male	101,669 ±624	50.5% ±0.3 pp	50.8%	49.5%
Female	99,800 ±628	49.5% ±0.3 pp	49.2%	50.5%

The age groups are mutually exclusive and cover the entire population. The sex categories follow this ACS table’s published classification; they are not a survey of gender identity.

Race and Hispanic origin

Race · B02001 · ACS 2020–2024 Total population: 201,469
Category	Count ± MOE	Share ± MOE (pp)	South Dakota	U.S.
White alone	159,269 ±1,046	79.1% ±0.5 pp	80.7%	61.0%
Black or African American alone	13,979 ±848	6.9% ±0.4 pp	2.3%	12.2%
American Indian and Alaska Native alone	3,791 ±579	1.9% ±0.3 pp	7.5%	0.9%
Asian alone	4,152 ±538	2.1% ±0.3 pp	1.4%	6.0%
Native Hawaiian and Other Pacific Islander alone	78 ±70 · low precision	0.0% ±0.0 pp · low precision	0.0%	0.2%
Some other race alone	4,701 ±952	2.3% ±0.5 pp	1.6%	7.1%
Two or more races	15,499 ±1,260	7.7% ±0.6 pp	6.5%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 201,469
Category	Count ± MOE	Share ± MOE (pp)	South Dakota	U.S.
Not Hispanic or Latino	188,355 ±722	93.5% ±0.4 pp	95.2%	80.7%
Hispanic or Latino	13,114 ±710	6.5% ±0.4 pp	4.8%	19.3%

Hispanic origin and race are separate questions. People of Hispanic or Latino origin may be of any race and appear in both tables. Do not add the Hispanic share to race shares. Race alone and two-or-more-race groups are the mutually exclusive categories of the race table.

Household types, children and living alone

Household types · B11001 · ACS 2020–2024 Households: 85,992
Category	Count ± MOE	Share ± MOE (pp)	South Dakota	U.S.
Married-couple family	36,681 ±1,014	42.7% ±1.1 pp	48.3%	46.9%
Other family: male householder, no spouse present	3,959 ±516	4.6% ±0.6 pp	4.8%	5.1%
Other family: female householder, no spouse present	7,875 ±766	9.2% ±0.9 pp	8.1%	12.2%
Nonfamily: householder living alone	30,116 ±1,107	35.0% ±1.3 pp	31.9%	28.7%
Nonfamily: householder not living alone	7,361 ±730	8.6% ±0.8 pp	6.8%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 85,992
Category	Count ± MOE	Share ± MOE (pp)	South Dakota	U.S.
Households with people under 18	25,212 ±751	29.3% ±0.8 pp	29.0%	29.5%
Households without people under 18	60,780 ±983	70.7% ±1.0 pp	71.0%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 85,992
Category	Count ± MOE	Share ± MOE (pp)	South Dakota	U.S.
One-person nonfamily households	30,116 ±1,107	35.0% ±1.3 pp	31.9%	28.7%
Two-person households	27,863 ±1,211	32.4% ±1.4 pp	35.5%	33.8%
Three-person households	10,941 ±788	12.7% ±0.9 pp	12.4%	15.3%
Four-person households	8,776 ±790	10.2% ±0.9 pp	10.5%	12.6%
Five-person households	5,817 ±664	6.8% ±0.8 pp	6.1%	5.9%
Six-person households	1,553 ±303	1.8% ±0.4 pp	2.2%	2.2%
Seven or more people	926 ±262	1.1% ±0.3 pp	1.5%	1.4%

A family household contains related people under the Census definition. A nonfamily household can contain one person or unrelated people sharing a home. Households with children can also appear in the household-type and size tables, so those tables must not be added together. Household estimates exclude people living in group quarters from the household universe.

Nativity and languages spoken at home

Nativity · B05002 · ACS 2020–2024 Total population: 201,469
Category	Count ± MOE	Share ± MOE (pp)	South Dakota	U.S.
Native	184,014 ±1,433	91.3% ±0.7 pp	96.0%	85.9%
Foreign born	17,455 ±1,414	8.7% ±0.7 pp	4.0%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 187,994
Category	Count ± MOE	Share ± MOE (pp)	South Dakota	U.S.
English only	167,014 ±1,652	88.8% ±0.8 pp	92.9%	77.7%
Spanish	8,558 ±803	4.6% ±0.4 pp	2.6%	13.6%
French, Haitian, or Cajun	539 ±242	0.3% ±0.1 pp	0.1%	0.7%
German or other West Germanic	547 ±213	0.3% ±0.1 pp	0.8%	0.5%
Russian, Polish, or other Slavic	1,639 ±763	0.9% ±0.4 pp	0.4%	0.7%
Other Indo-European	2,094 ±662	1.1% ±0.4 pp	0.4%	2.0%
Korean	153 ±102 · low precision	0.1% ±0.1 pp · low precision	0.1%	0.3%
Chinese, including Mandarin and Cantonese	225 ±147 · low precision	0.1% ±0.1 pp · low precision	0.1%	1.1%
Vietnamese	380 ±257 · low precision	0.2% ±0.1 pp · low precision	0.1%	0.5%
Tagalog, including Filipino	205 ±130 · low precision	0.1% ±0.1 pp · low precision	0.2%	0.6%
Other Asian and Pacific Island	738 ±250	0.4% ±0.1 pp	0.4%	1.1%
Arabic	471 ±272 · low precision	0.3% ±0.1 pp · low precision	0.1%	0.5%
Other and unspecified	5,431 ±813	2.9% ±0.4 pp	1.8%	0.8%

Foreign born means not a U.S. citizen at birth; it includes naturalized citizens. Language categories describe speech at home among people age five and older. A language other than English at home does not establish that someone cannot speak English. This city page uses the published C16001 summary categories because the more detailed B16001 table does not provide these city records in this release.

Educational attainment

Highest completed education · B15003 · ACS 2020–2024 Population age 25 and older: 133,580
Category	Count ± MOE	Share ± MOE (pp)	South Dakota	U.S.
Less than high school graduate	9,455 ±878	7.1% ±0.7 pp	6.8%	10.4%
High school graduate or equivalency	32,573 ±1,698	24.4% ±1.3 pp	29.0%	26.0%
Some college, no degree	26,027 ±1,427	19.5% ±1.1 pp	19.9%	19.1%
Associate’s degree	14,610 ±1,089	10.9% ±0.8 pp	12.3%	8.8%
Bachelor’s degree	34,736 ±1,418	26.0% ±1.0 pp	21.9%	21.6%
Graduate or professional degree	16,179 ±1,098	12.1% ±0.8 pp	10.0%	14.1%

The denominator excludes residents under 25. Each person is counted in the highest attainment category they completed. This table does not measure the quality of local schools or the education level of every current student.

Residence one year earlier

Geographic mobility · B07003 · ACS 2020–2024 Population age 1 and older: 198,796
Category	Count ± MOE	Share ± MOE (pp)	South Dakota	U.S.
Same house	168,627 ±2,233	84.8% ±1.1 pp	87.0%	87.7%
Moved within same county	14,367 ±1,406	7.2% ±0.7 pp	5.7%	6.3%
Moved from a different county in the same state	9,039 ±1,068	4.5% ±0.5 pp	3.7%	3.1%
Moved from a different state	6,029 ±856	3.0% ±0.4 pp	3.2%	2.3%
Moved from abroad	734 ±264	0.4% ±0.1 pp	0.3%	0.6%

These are respondents’ residence patterns one year before their survey response, pooled across the five-year window. They are not a net migration count for 2025. A person can move to a different house within the same city or county; moves within the same county should not automatically be interpreted as new arrivals to the city.

Health insurance, internet access and veterans

8.1% of Sioux Falls residents (±0.7 percentage points) had no health insurance coverage when surveyed, compared with 9.0% in South Dakota and 8.4% nationally. 93.4% of households subscribe to broadband of any type, including cellular data plans. A subscription is not the same as available service: the FCC National Broadband Map shows providers at a specific address.

City, state and U.S. shares · ACS 2020–2024
Measure	Sioux Falls	South Dakota	U.S.	Compared with South Dakota
People without health insurance Civilian noninstitutionalized population	8.1% ±0.7 pp	9.0%	8.4%	Lower
Households with a broadband subscription Households	93.4% ±0.7 pp	89.6%	91.0%	Higher
Veterans Civilian population age 18 and older	6.1% ±0.5 pp	7.9%	6.2%	Lower

Reading and reusing the estimates

The Census table links above lead to the original detailed tables. Counts, source universes and uncertainty are retained in the source observation download for Sioux Falls . Compare these figures with the same survey window; do not compare one city’s five-year estimate with another city’s annual estimate as though they measured the same period. For methods, see uncertainty and denominator calculations.

Read Sioux Falls housing and cost context or return to the city profile.