Oak Creek, Wisconsin demographics

Oak Creek, WI demographics: median age 39.4; 39.4% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Oak Creek city, Wisconsin · Incorporated city · GEOID 5558800. The survey estimates a population of 37,325 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Oak Creek is 39.4 years, with a 90% margin of error of 2.7 years. There are 15,728 households (±628). 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	39.4 ±2.7	40.2 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 37,325
Category	Count ± MOE	Share ± MOE (pp)	Wisconsin	U.S.
Under 18	7,888 ±717	21.1% ±1.9 pp	21.4%	22.0%
18–34	8,617 ±774	23.1% ±2.1 pp	21.9%	22.8%
35–64	15,193 ±988	40.7% ±2.6 pp	38.2%	38.0%
65 and older	5,627 ±550	15.1% ±1.5 pp	18.5%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 37,325
Category	Count ± MOE	Share ± MOE (pp)	Wisconsin	U.S.
Male	18,720 ±597	50.2% ±1.6 pp	50.1%	49.5%
Female	18,605 ±595	49.8% ±1.6 pp	49.9%	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: 37,325
Category	Count ± MOE	Share ± MOE (pp)	Wisconsin	U.S.
White alone	28,251 ±1,077	75.7% ±2.9 pp	80.1%	61.0%
Black or African American alone	1,707 ±510	4.6% ±1.4 pp	6.1%	12.2%
American Indian and Alaska Native alone	46 ±28 · low precision	0.1% ±0.1 pp · low precision	0.8%	0.9%
Asian alone	2,260 ±574	6.1% ±1.5 pp	3.0%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±21 · low precision	0.0% ±0.1 pp · low precision	0.0%	0.2%
Some other race alone	1,305 ±513	3.5% ±1.4 pp	2.5%	7.1%
Two or more races	3,756 ±869	10.1% ±2.3 pp	7.6%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 37,325
Category	Count ± MOE	Share ± MOE (pp)	Wisconsin	U.S.
Not Hispanic or Latino	32,781 ±856	87.8% ±2.3 pp	92.0%	80.7%
Hispanic or Latino	4,544 ±855	12.2% ±2.3 pp	8.0%	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: 15,728
Category	Count ± MOE	Share ± MOE (pp)	Wisconsin	U.S.
Married-couple family	7,420 ±453	47.2% ±2.2 pp	46.8%	46.9%
Other family: male householder, no spouse present	433 ±157	2.8% ±1.0 pp	4.5%	5.1%
Other family: female householder, no spouse present	1,398 ±347	8.9% ±2.2 pp	9.1%	12.2%
Nonfamily: householder living alone	5,184 ±701	33.0% ±4.3 pp	31.5%	28.7%
Nonfamily: householder not living alone	1,293 ±331	8.2% ±2.1 pp	8.0%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 15,728
Category	Count ± MOE	Share ± MOE (pp)	Wisconsin	U.S.
Households with people under 18	4,071 ±306	25.9% ±1.6 pp	26.1%	29.5%
Households without people under 18	11,657 ±814	74.1% ±4.2 pp	73.9%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 15,728
Category	Count ± MOE	Share ± MOE (pp)	Wisconsin	U.S.
One-person nonfamily households	5,184 ±701	33.0% ±4.3 pp	31.5%	28.7%
Two-person households	5,163 ±594	32.8% ±3.5 pp	37.0%	33.8%
Three-person households	2,470 ±352	15.7% ±2.1 pp	13.1%	15.3%
Four-person households	1,741 ±325	11.1% ±2.0 pp	10.9%	12.6%
Five-person households	684 ±179	4.3% ±1.1 pp	4.8%	5.9%
Six-person households	426 ±216 · low precision	2.7% ±1.4 pp · low precision	1.7%	2.2%
Seven or more people	60 ±58 · low precision	0.4% ±0.4 pp · low precision	1.0%	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: 37,325
Category	Count ± MOE	Share ± MOE (pp)	Wisconsin	U.S.
Native	32,820 ±631	87.9% ±1.7 pp	94.8%	85.9%
Foreign born	4,505 ±624	12.1% ±1.7 pp	5.2%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 35,372
Category	Count ± MOE	Share ± MOE (pp)	Wisconsin	U.S.
English only	29,341 ±873	82.9% ±2.3 pp	91.0%	77.7%
Spanish	1,959 ±614	5.5% ±1.7 pp	4.9%	13.6%
French, Haitian, or Cajun	58 ±61 · low precision	0.2% ±0.2 pp · low precision	0.2%	0.7%
German or other West Germanic	30 ±35 · low precision	0.1% ±0.1 pp · low precision	0.7%	0.5%
Russian, Polish, or other Slavic	128 ±92 · low precision	0.4% ±0.3 pp · low precision	0.3%	0.7%
Other Indo-European	1,885 ±501	5.3% ±1.4 pp	0.7%	2.0%
Korean	30 ±49 · low precision	0.1% ±0.1 pp · low precision	0.1%	0.3%
Chinese, including Mandarin and Cantonese	102 ±99 · low precision	0.3% ±0.3 pp · low precision	0.3%	1.1%
Vietnamese	36 ±32 · low precision	0.1% ±0.1 pp · low precision	0.1%	0.5%
Tagalog, including Filipino	192 ±135 · low precision	0.5% ±0.4 pp · low precision	0.1%	0.6%
Other Asian and Pacific Island	684 ±327	1.9% ±0.9 pp	1.2%	1.1%
Arabic	648 ±333 · low precision	1.8% ±0.9 pp · low precision	0.1%	0.5%
Other and unspecified	279 ±276 · low precision	0.8% ±0.8 pp · low precision	0.3%	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: 26,896
Category	Count ± MOE	Share ± MOE (pp)	Wisconsin	U.S.
Less than high school graduate	1,312 ±314	4.9% ±1.2 pp	6.4%	10.4%
High school graduate or equivalency	7,033 ±693	26.1% ±2.4 pp	29.4%	26.0%
Some college, no degree	4,872 ±535	18.1% ±1.9 pp	19.5%	19.1%
Associate’s degree	3,095 ±522	11.5% ±1.9 pp	11.3%	8.8%
Bachelor’s degree	7,267 ±875	27.0% ±3.1 pp	22.0%	21.6%
Graduate or professional degree	3,317 ±515	12.3% ±1.9 pp	11.4%	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: 36,846
Category	Count ± MOE	Share ± MOE (pp)	Wisconsin	U.S.
Same house	32,710 ±850	88.8% ±2.2 pp	88.2%	87.7%
Moved within same county	2,022 ±462	5.5% ±1.3 pp	6.2%	6.3%
Moved from a different county in the same state	1,043 ±449	2.8% ±1.2 pp	3.3%	3.1%
Moved from a different state	871 ±377	2.4% ±1.0 pp	2.0%	2.3%
Moved from abroad	200 ±103 · low precision	0.5% ±0.3 pp · low precision	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

4.0% of Oak Creek residents (±1.0 percentage points) had no health insurance coverage when surveyed, compared with 5.2% in Wisconsin and 8.4% nationally. 93.1% 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	Oak Creek	Wisconsin	U.S.	Compared with Wisconsin
People without health insurance Civilian noninstitutionalized population	4.0% ±1.0 pp	5.2%	8.4%	Lower
Households with a broadband subscription Households	93.1% ±0.7 pp	90.3%	91.0%	Higher
Veterans Civilian population age 18 and older	4.7% ±0.9 pp	6.2%	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 Oak Creek . 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 Oak Creek housing and cost context or return to the city profile.