Winfield, Illinois demographics

Winfield, IL demographics: median age 44.0; 59.7% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Winfield village, Illinois · Incorporated village · GEOID 1782400. The survey estimates a population of 10,095 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Winfield is 44.0 years, with a 90% margin of error of 3.9 years. There are 4,019 households (±185). 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	44.0 ±3.9	39.0 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 10,095
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Under 18	2,144 ±356	21.2% ±3.5 pp	21.8%	22.0%
18–34	1,339 ±194	13.3% ±1.9 pp	22.7%	22.8%
35–64	4,401 ±422	43.6% ±4.2 pp	38.5%	38.0%
65 and older	2,211 ±317	21.9% ±3.1 pp	17.0%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 10,095
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Male	5,021 ±251	49.7% ±2.5 pp	49.4%	49.5%
Female	5,074 ±279	50.3% ±2.7 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: 10,095
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
White alone	8,105 ±474	80.3% ±4.6 pp	61.0%	61.0%
Black or African American alone	146 ±109 · low precision	1.4% ±1.1 pp · low precision	13.6%	12.2%
American Indian and Alaska Native alone	0 ±20 · low precision	0.0% ±0.2 pp · low precision	0.6%	0.9%
Asian alone	513 ±250	5.1% ±2.5 pp	6.0%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±20 · low precision	0.0% ±0.2 pp · low precision	0.0%	0.2%
Some other race alone	327 ±174 · low precision	3.2% ±1.7 pp · low precision	7.9%	7.1%
Two or more races	1,004 ±411	9.9% ±4.1 pp	10.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 10,095
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Not Hispanic or Latino	8,931 ±422	88.5% ±4.1 pp	81.2%	80.7%
Hispanic or Latino	1,164 ±416	11.5% ±4.1 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: 4,019
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Married-couple family	2,668 ±168	66.4% ±2.9 pp	45.3%	46.9%
Other family: male householder, no spouse present	71 ±50 · low precision	1.8% ±1.2 pp · low precision	4.9%	5.1%
Other family: female householder, no spouse present	193 ±80	4.8% ±2.0 pp	11.9%	12.2%
Nonfamily: householder living alone	947 ±222	23.6% ±5.4 pp	31.2%	28.7%
Nonfamily: householder not living alone	140 ±61	3.5% ±1.5 pp	6.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 4,019
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Households with people under 18	1,140 ±137	28.4% ±3.1 pp	28.6%	29.5%
Households without people under 18	2,879 ±286	71.6% ±6.3 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 4,019
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
One-person nonfamily households	947 ±222	23.6% ±5.4 pp	31.2%	28.7%
Two-person households	1,593 ±252	39.6% ±6.0 pp	32.3%	33.8%
Three-person households	485 ±109	12.1% ±2.7 pp	14.7%	15.3%
Four-person households	730 ±145	18.2% ±3.5 pp	12.6%	12.6%
Five-person households	154 ±95 · low precision	3.8% ±2.4 pp · low precision	5.8%	5.9%
Six-person households	60 ±43 · low precision	1.5% ±1.1 pp · low precision	2.1%	2.2%
Seven or more people	50 ±38 · low precision	1.2% ±0.9 pp · low precision	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: 10,095
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Native	9,311 ±252	92.2% ±2.4 pp	85.3%	85.9%
Foreign born	784 ±233	7.8% ±2.3 pp	14.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 9,530
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
English only	8,332 ±287	87.4% ±2.5 pp	76.0%	77.7%
Spanish	553 ±183	5.8% ±1.9 pp	14.0%	13.6%
French, Haitian, or Cajun	33 ±37 · low precision	0.3% ±0.4 pp · low precision	0.3%	0.7%
German or other West Germanic	11 ±18 · low precision	0.1% ±0.2 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	120 ±83 · low precision	1.3% ±0.9 pp · low precision	2.5%	0.7%
Other Indo-European	265 ±181 · low precision	2.8% ±1.9 pp · low precision	2.6%	2.0%
Korean	17 ±27 · low precision	0.2% ±0.3 pp · low precision	0.3%	0.3%
Chinese, including Mandarin and Cantonese	10 ±16 · low precision	0.1% ±0.2 pp · low precision	0.9%	1.1%
Vietnamese	20 ±33 · low precision	0.2% ±0.3 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	45 ±53 · low precision	0.5% ±0.6 pp · low precision	0.7%	0.6%
Other Asian and Pacific Island	0 ±20 · low precision	0.0% ±0.2 pp · low precision	1.0%	1.1%
Arabic	124 ±117 · low precision	1.3% ±1.2 pp · low precision	0.6%	0.5%
Other and unspecified	0 ±20 · low precision	0.0% ±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: 7,444
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Less than high school graduate	211 ±117 · low precision	2.8% ±1.6 pp · low precision	9.5%	10.4%
High school graduate or equivalency	1,140 ±300	15.3% ±4.0 pp	25.1%	26.0%
Some college, no degree	1,178 ±217	15.8% ±2.8 pp	19.2%	19.1%
Associate’s degree	469 ±132	6.3% ±1.8 pp	8.3%	8.8%
Bachelor’s degree	2,642 ±243	35.5% ±2.9 pp	22.6%	21.6%
Graduate or professional degree	1,804 ±293	24.2% ±3.8 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: 9,959
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Same house	9,392 ±246	94.3% ±2.2 pp	88.9%	87.7%
Moved within same county	326 ±138	3.3% ±1.4 pp	6.4%	6.3%
Moved from a different county in the same state	116 ±69 · low precision	1.2% ±0.7 pp · low precision	2.4%	3.1%
Moved from a different state	108 ±88 · low precision	1.1% ±0.9 pp · low precision	1.6%	2.3%
Moved from abroad	17 ±27 · low precision	0.2% ±0.3 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

1.7% of Winfield residents (±0.9 percentage points) had no health insurance coverage when surveyed, compared with 6.9% in Illinois and 8.4% nationally. 95.7% 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	Winfield	Illinois	U.S.	Compared with Illinois
People without health insurance Civilian noninstitutionalized population	1.7% ±0.9 pp · low precision	6.9%	8.4%	Lower
Households with a broadband subscription Households	95.7% ±0.6 pp	90.8%	91.0%	Higher
Veterans Civilian population age 18 and older	5.4% ±1.5 pp	4.8%	6.2%	Not statistically different

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 Winfield . 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 Winfield housing and cost context or return to the city profile.