Spring Valley, Illinois demographics

Spring Valley, IL demographics: median age 41.7; 16.9% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Spring Valley city, Illinois · Incorporated city · GEOID 1772156. The survey estimates a population of 5,476 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Spring Valley is 41.7 years, with a 90% margin of error of 3.0 years. There are 2,235 households (±155). 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	41.7 ±3.0	39.0 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 5,476
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Under 18	1,170 ±197	21.4% ±3.6 pp	21.8%	22.0%
18–34	1,021 ±173	18.6% ±3.2 pp	22.7%	22.8%
35–64	2,012 ±267	36.7% ±4.9 pp	38.5%	38.0%
65 and older	1,273 ±179	23.2% ±3.3 pp	17.0%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 5,476
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Male	2,569 ±155	46.9% ±2.8 pp	49.4%	49.5%
Female	2,907 ±150	53.1% ±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: 5,476
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
White alone	4,499 ±262	82.2% ±4.8 pp	61.0%	61.0%
Black or African American alone	40 ±48 · low precision	0.7% ±0.9 pp · low precision	13.6%	12.2%
American Indian and Alaska Native alone	7 ±7 · low precision	0.1% ±0.1 pp · low precision	0.6%	0.9%
Asian alone	30 ±28 · low precision	0.5% ±0.5 pp · low precision	6.0%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±18 · low precision	0.0% ±0.3 pp · low precision	0.0%	0.2%
Some other race alone	484 ±249 · low precision	8.8% ±4.5 pp · low precision	7.9%	7.1%
Two or more races	416 ±177	7.6% ±3.2 pp	10.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 5,476
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Not Hispanic or Latino	4,457 ±225	81.4% ±4.1 pp	81.2%	80.7%
Hispanic or Latino	1,019 ±223	18.6% ±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: 2,235
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Married-couple family	1,138 ±154	50.9% ±5.9 pp	45.3%	46.9%
Other family: male householder, no spouse present	147 ±74 · low precision	6.6% ±3.3 pp	4.9%	5.1%
Other family: female householder, no spouse present	205 ±101	9.2% ±4.5 pp	11.9%	12.2%
Nonfamily: householder living alone	603 ±166	27.0% ±7.2 pp	31.2%	28.7%
Nonfamily: householder not living alone	142 ±69	6.4% ±3.1 pp	6.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 2,235
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Households with people under 18	614 ±107	27.5% ±4.4 pp	28.6%	29.5%
Households without people under 18	1,621 ±220	72.5% ±8.5 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 2,235
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
One-person nonfamily households	603 ±166	27.0% ±7.2 pp	31.2%	28.7%
Two-person households	904 ±173	40.4% ±7.2 pp	32.3%	33.8%
Three-person households	301 ±105	13.5% ±4.6 pp	14.7%	15.3%
Four-person households	171 ±83	7.7% ±3.7 pp	12.6%	12.6%
Five-person households	143 ±74 · low precision	6.4% ±3.3 pp · low precision	5.8%	5.9%
Six-person households	73 ±53 · low precision	3.3% ±2.4 pp · low precision	2.1%	2.2%
Seven or more people	40 ±40 · low precision	1.8% ±1.8 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: 5,476
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Native	5,140 ±149	93.9% ±2.7 pp	85.3%	85.9%
Foreign born	336 ±149	6.1% ±2.7 pp	14.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 5,299
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
English only	4,653 ±265	87.8% ±4.8 pp	76.0%	77.7%
Spanish	626 ±253	11.8% ±4.8 pp	14.0%	13.6%
French, Haitian, or Cajun	0 ±18 · low precision	0.0% ±0.3 pp · low precision	0.3%	0.7%
German or other West Germanic	0 ±18 · low precision	0.0% ±0.3 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	0 ±18 · low precision	0.0% ±0.3 pp · low precision	2.5%	0.7%
Other Indo-European	15 ±19 · low precision	0.3% ±0.4 pp · low precision	2.6%	2.0%
Korean	0 ±18 · low precision	0.0% ±0.3 pp · low precision	0.3%	0.3%
Chinese, including Mandarin and Cantonese	0 ±18 · low precision	0.0% ±0.3 pp · low precision	0.9%	1.1%
Vietnamese	0 ±18 · low precision	0.0% ±0.3 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	0 ±18 · low precision	0.0% ±0.3 pp · low precision	0.7%	0.6%
Other Asian and Pacific Island	5 ±15 · low precision	0.1% ±0.3 pp · low precision	1.0%	1.1%
Arabic	0 ±18 · low precision	0.0% ±0.3 pp · low precision	0.6%	0.5%
Other and unspecified	0 ±18 · low precision	0.0% ±0.3 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: 3,791
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Less than high school graduate	424 ±165	11.2% ±4.3 pp	9.5%	10.4%
High school graduate or equivalency	1,500 ±225	39.6% ±5.5 pp	25.1%	26.0%
Some college, no degree	811 ±180	21.4% ±4.6 pp	19.2%	19.1%
Associate’s degree	414 ±137	10.9% ±3.6 pp	8.3%	8.8%
Bachelor’s degree	436 ±96	11.5% ±2.5 pp	22.6%	21.6%
Graduate or professional degree	206 ±97	5.4% ±2.5 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: 5,430
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Same house	4,946 ±187	91.1% ±3.3 pp	88.9%	87.7%
Moved within same county	344 ±153	6.3% ±2.8 pp	6.4%	6.3%
Moved from a different county in the same state	85 ±47 · low precision	1.6% ±0.9 pp · low precision	2.4%	3.1%
Moved from a different state	34 ±54 · low precision	0.6% ±1.0 pp · low precision	1.6%	2.3%
Moved from abroad	21 ±24 · low precision	0.4% ±0.4 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

5.5% of Spring Valley residents (±2.1 percentage points) had no health insurance coverage when surveyed, compared with 6.9% in Illinois and 8.4% nationally. 89.9% 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	Spring Valley	Illinois	U.S.	Compared with Illinois
People without health insurance Civilian noninstitutionalized population	5.5% ±2.1 pp	6.9%	8.4%	Not statistically different
Households with a broadband subscription Households	89.9% ±2.4 pp	90.8%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	5.8% ±2.0 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 Spring Valley . 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 Spring Valley housing and cost context or return to the city profile.