Streamwood, Illinois demographics

Streamwood, IL demographics: median age 40.0; 27.8% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Streamwood village, Illinois · Incorporated village · GEOID 1773157. The survey estimates a population of 39,001 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Streamwood is 40.0 years, with a 90% margin of error of 2.0 years. There are 13,057 households (±568). 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	40.0 ±2.0	39.0 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 39,001
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Under 18	8,930 ±910	22.9% ±2.3 pp	21.8%	22.0%
18–34	7,852 ±642	20.1% ±1.6 pp	22.7%	22.8%
35–64	16,386 ±1,080	42.0% ±2.7 pp	38.5%	38.0%
65 and older	5,833 ±587	15.0% ±1.5 pp	17.0%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 39,001
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Male	19,547 ±698	50.1% ±1.5 pp	49.4%	49.5%
Female	19,454 ±1,003	49.9% ±2.4 pp	50.6%	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: 39,001
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
White alone	15,116 ±1,284	38.8% ±3.2 pp	61.0%	61.0%
Black or African American alone	1,976 ±710	5.1% ±1.8 pp	13.6%	12.2%
American Indian and Alaska Native alone	681 ±461 · low precision	1.7% ±1.2 pp · low precision	0.6%	0.9%
Asian alone	5,667 ±742	14.5% ±1.9 pp	6.0%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±27 · low precision	0.0% ±0.1 pp · low precision	0.0%	0.2%
Some other race alone	4,580 ±1,025	11.7% ±2.6 pp	7.9%	7.1%
Two or more races	10,981 ±1,908	28.2% ±4.9 pp	10.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 39,001
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Not Hispanic or Latino	23,141 ±1,650	59.3% ±4.1 pp	81.2%	80.7%
Hispanic or Latino	15,860 ±1,454	40.7% ±3.6 pp	18.8%	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: 13,057
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Married-couple family	7,209 ±489	55.2% ±2.9 pp	45.3%	46.9%
Other family: male householder, no spouse present	769 ±231	5.9% ±1.8 pp	4.9%	5.1%
Other family: female householder, no spouse present	1,471 ±283	11.3% ±2.1 pp	11.9%	12.2%
Nonfamily: householder living alone	2,976 ±542	22.8% ±4.0 pp	31.2%	28.7%
Nonfamily: householder not living alone	632 ±145	4.8% ±1.1 pp	6.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 13,057
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Households with people under 18	4,267 ±300	32.7% ±1.8 pp	28.6%	29.5%
Households without people under 18	8,790 ±698	67.3% ±4.5 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 13,057
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
One-person nonfamily households	2,976 ±542	22.8% ±4.0 pp	31.2%	28.7%
Two-person households	3,512 ±385	26.9% ±2.7 pp	32.3%	33.8%
Three-person households	2,262 ±340	17.3% ±2.5 pp	14.7%	15.3%
Four-person households	1,642 ±280	12.6% ±2.1 pp	12.6%	12.6%
Five-person households	1,367 ±261	10.5% ±1.9 pp	5.8%	5.9%
Six-person households	521 ±210	4.0% ±1.6 pp	2.1%	2.2%
Seven or more people	777 ±336	6.0% ±2.6 pp	1.3%	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: 39,001
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Native	25,362 ±1,364	65.0% ±3.3 pp	85.3%	85.9%
Foreign born	13,639 ±1,121	35.0% ±2.8 pp	14.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 36,808
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
English only	16,500 ±1,322	44.8% ±3.5 pp	76.0%	77.7%
Spanish	12,859 ±1,363	34.9% ±3.7 pp	14.0%	13.6%
French, Haitian, or Cajun	0 ±27 · low precision	0.0% ±0.1 pp · low precision	0.3%	0.7%
German or other West Germanic	52 ±42 · low precision	0.1% ±0.1 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	1,849 ±441	5.0% ±1.2 pp	2.5%	0.7%
Other Indo-European	2,926 ±600	7.9% ±1.6 pp	2.6%	2.0%
Korean	398 ±398 · low precision	1.1% ±1.1 pp · low precision	0.3%	0.3%
Chinese, including Mandarin and Cantonese	137 ±79 · low precision	0.4% ±0.2 pp · low precision	0.9%	1.1%
Vietnamese	47 ±47 · low precision	0.1% ±0.1 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	1,197 ±451	3.3% ±1.2 pp	0.7%	0.6%
Other Asian and Pacific Island	601 ±304 · low precision	1.6% ±0.8 pp · low precision	1.0%	1.1%
Arabic	175 ±154 · low precision	0.5% ±0.4 pp · low precision	0.6%	0.5%
Other and unspecified	67 ±67 · low precision	0.2% ±0.2 pp · low precision	0.6%	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: 26,877
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Less than high school graduate	3,888 ±500	14.5% ±1.8 pp	9.5%	10.4%
High school graduate or equivalency	8,532 ±961	31.7% ±3.4 pp	25.1%	26.0%
Some college, no degree	4,350 ±650	16.2% ±2.4 pp	19.2%	19.1%
Associate’s degree	2,635 ±474	9.8% ±1.7 pp	8.3%	8.8%
Bachelor’s degree	5,274 ±517	19.6% ±1.8 pp	22.6%	21.6%
Graduate or professional degree	2,198 ±363	8.2% ±1.3 pp	15.3%	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: 38,606
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Same house	36,114 ±927	93.5% ±1.6 pp	88.9%	87.7%
Moved within same county	1,272 ±434	3.3% ±1.1 pp	6.4%	6.3%
Moved from a different county in the same state	728 ±275	1.9% ±0.7 pp	2.4%	3.1%
Moved from a different state	157 ±118 · low precision	0.4% ±0.3 pp · low precision	1.6%	2.3%
Moved from abroad	335 ±180 · low precision	0.9% ±0.5 pp · low precision	0.6%	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

11.2% of Streamwood residents (±2.4 percentage points) had no health insurance coverage when surveyed, compared with 6.9% in Illinois and 8.4% nationally. 94.3% 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	Streamwood	Illinois	U.S.	Compared with Illinois
People without health insurance Civilian noninstitutionalized population	11.2% ±2.4 pp	6.9%	8.4%	Higher
Households with a broadband subscription Households	94.3% ±2.7 pp	90.8%	91.0%	Higher
Veterans Civilian population age 18 and older	3.3% ±1.0 pp	4.8%	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 Streamwood . 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 Streamwood housing and cost context or return to the city profile.