Wood River, Illinois demographics

Wood River, IL demographics: median age 40.3; 15.5% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Wood River city, Illinois · Incorporated city · GEOID 1783271. The survey estimates a population of 10,279 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Wood River is 40.3 years, with a 90% margin of error of 4.1 years. There are 4,573 households (±298). 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	40.3 ±4.1	39.0 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 10,279
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Under 18	1,975 ±300	19.2% ±2.9 pp	21.8%	22.0%
18–34	2,578 ±402	25.1% ±3.9 pp	22.7%	22.8%
35–64	4,035 ±441	39.3% ±4.3 pp	38.5%	38.0%
65 and older	1,691 ±301	16.5% ±2.9 pp	17.0%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 10,279
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Male	5,337 ±289	51.9% ±2.8 pp	49.4%	49.5%
Female	4,942 ±305	48.1% ±2.9 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: 10,279
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
White alone	8,955 ±383	87.1% ±3.7 pp	61.0%	61.0%
Black or African American alone	529 ±279 · low precision	5.1% ±2.7 pp · low precision	13.6%	12.2%
American Indian and Alaska Native alone	47 ±58 · low precision	0.5% ±0.6 pp · low precision	0.6%	0.9%
Asian alone	2 ±3 · low precision	0.0% ±0.0 pp · low precision	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	43 ±48 · low precision	0.4% ±0.5 pp · low precision	7.9%	7.1%
Two or more races	703 ±276	6.8% ±2.7 pp	10.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 10,279
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Not Hispanic or Latino	9,870 ±248	96.0% ±2.3 pp	81.2%	80.7%
Hispanic or Latino	409 ±252 · low precision	4.0% ±2.5 pp · low precision	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: 4,573
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Married-couple family	1,721 ±230	37.6% ±4.4 pp	45.3%	46.9%
Other family: male householder, no spouse present	297 ±114	6.5% ±2.5 pp	4.9%	5.1%
Other family: female householder, no spouse present	549 ±146	12.0% ±3.1 pp	11.9%	12.2%
Nonfamily: householder living alone	1,657 ±303	36.2% ±6.2 pp	31.2%	28.7%
Nonfamily: householder not living alone	349 ±177 · low precision	7.6% ±3.8 pp · low precision	6.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 4,573
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Households with people under 18	1,118 ±164	24.4% ±3.2 pp	28.6%	29.5%
Households without people under 18	3,455 ±374	75.6% ±6.5 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 4,573
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
One-person nonfamily households	1,657 ±303	36.2% ±6.2 pp	31.2%	28.7%
Two-person households	1,541 ±284	33.7% ±5.8 pp	32.3%	33.8%
Three-person households	642 ±166	14.0% ±3.5 pp	14.7%	15.3%
Four-person households	398 ±116	8.7% ±2.5 pp	12.6%	12.6%
Five-person households	204 ±124 · low precision	4.5% ±2.7 pp · low precision	5.8%	5.9%
Six-person households	97 ±97 · low precision	2.1% ±2.1 pp · low precision	2.1%	2.2%
Seven or more people	34 ±37 · low precision	0.7% ±0.8 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: 10,279
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Native	10,083 ±172	98.1% ±1.5 pp	85.3%	85.9%
Foreign born	196 ±165 · low precision	1.9% ±1.6 pp · low precision	14.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 9,663
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
English only	9,345 ±299	96.7% ±2.3 pp	76.0%	77.7%
Spanish	230 ±154 · low precision	2.4% ±1.6 pp · low precision	14.0%	13.6%
French, Haitian, or Cajun	0 ±20 · low precision	0.0% ±0.2 pp · low precision	0.3%	0.7%
German or other West Germanic	11 ±19 · low precision	0.1% ±0.2 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	36 ±51 · low precision	0.4% ±0.5 pp · low precision	2.5%	0.7%
Other Indo-European	0 ±20 · low precision	0.0% ±0.2 pp · low precision	2.6%	2.0%
Korean	0 ±20 · low precision	0.0% ±0.2 pp · low precision	0.3%	0.3%
Chinese, including Mandarin and Cantonese	0 ±20 · low precision	0.0% ±0.2 pp · low precision	0.9%	1.1%
Vietnamese	0 ±20 · low precision	0.0% ±0.2 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	0 ±20 · low precision	0.0% ±0.2 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	41 ±63 · low precision	0.4% ±0.7 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: 7,090
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Less than high school graduate	406 ±147	5.7% ±2.1 pp	9.5%	10.4%
High school graduate or equivalency	2,952 ±449	41.6% ±6.0 pp	25.1%	26.0%
Some college, no degree	1,943 ±309	27.4% ±4.1 pp	19.2%	19.1%
Associate’s degree	687 ±190	9.7% ±2.6 pp	8.3%	8.8%
Bachelor’s degree	717 ±180	10.1% ±2.5 pp	22.6%	21.6%
Graduate or professional degree	385 ±149	5.4% ±2.1 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: 10,236
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Same house	8,780 ±464	85.8% ±4.5 pp	88.9%	87.7%
Moved within same county	1,062 ±420	10.4% ±4.1 pp	6.4%	6.3%
Moved from a different county in the same state	68 ±50 · low precision	0.7% ±0.5 pp · low precision	2.4%	3.1%
Moved from a different state	326 ±213 · low precision	3.2% ±2.1 pp · low precision	1.6%	2.3%
Moved from abroad	0 ±20 · low precision	0.0% ±0.2 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

6.6% of Wood River residents (±1.7 percentage points) had no health insurance coverage when surveyed, compared with 6.9% in Illinois and 8.4% nationally. 90.7% 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	Wood River	Illinois	U.S.	Compared with Illinois
People without health insurance Civilian noninstitutionalized population	6.6% ±1.7 pp	6.9%	8.4%	Not statistically different
Households with a broadband subscription Households	90.7% ±2.9 pp	90.8%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	6.4% ±2.3 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 Wood River . 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 Wood River housing and cost context or return to the city profile.