Crest Hill, Illinois demographics

Crest Hill, IL demographics: median age 39.1; 23.9% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Crest Hill city, Illinois · Incorporated city · GEOID 1717458. The survey estimates a population of 20,628 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Crest Hill is 39.1 years, with a 90% margin of error of 2.0 years. There are 8,153 households (±426). 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	39.1 ±2.0	39.0 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 20,628
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Under 18	3,581 ±483	17.4% ±2.3 pp	21.8%	22.0%
18–34	5,618 ±632	27.2% ±3.0 pp	22.7%	22.8%
35–64	7,626 ±652	37.0% ±3.0 pp	38.5%	38.0%
65 and older	3,803 ±495	18.4% ±2.4 pp	17.0%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 20,628
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Male	11,604 ±604	56.3% ±2.6 pp	49.4%	49.5%
Female	9,024 ±561	43.7% ±2.5 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: 20,628
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
White alone	11,701 ±891	56.7% ±4.1 pp	61.0%	61.0%
Black or African American alone	3,172 ±378	15.4% ±1.8 pp	13.6%	12.2%
American Indian and Alaska Native alone	22 ±52 · low precision	0.1% ±0.3 pp · low precision	0.6%	0.9%
Asian alone	641 ±379 · low precision	3.1% ±1.8 pp · low precision	6.0%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±24 · low precision	0.0% ±0.1 pp · low precision	0.0%	0.2%
Some other race alone	2,147 ±530	10.4% ±2.6 pp	7.9%	7.1%
Two or more races	2,945 ±676	14.3% ±3.3 pp	10.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 20,628
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Not Hispanic or Latino	15,060 ±855	73.0% ±3.7 pp	81.2%	80.7%
Hispanic or Latino	5,568 ±732	27.0% ±3.5 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: 8,153
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Married-couple family	2,767 ±282	33.9% ±3.0 pp	45.3%	46.9%
Other family: male householder, no spouse present	590 ±190	7.2% ±2.3 pp	4.9%	5.1%
Other family: female householder, no spouse present	920 ±218	11.3% ±2.6 pp	11.9%	12.2%
Nonfamily: householder living alone	3,165 ±508	38.8% ±5.9 pp	31.2%	28.7%
Nonfamily: householder not living alone	711 ±184	8.7% ±2.2 pp	6.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 8,153
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Households with people under 18	2,189 ±237	26.8% ±2.5 pp	28.6%	29.5%
Households without people under 18	5,964 ±513	73.2% ±5.0 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 8,153
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
One-person nonfamily households	3,165 ±508	38.8% ±5.9 pp	31.2%	28.7%
Two-person households	2,405 ±327	29.5% ±3.7 pp	32.3%	33.8%
Three-person households	1,114 ±275	13.7% ±3.3 pp	14.7%	15.3%
Four-person households	861 ±228	10.6% ±2.7 pp	12.6%	12.6%
Five-person households	359 ±151	4.4% ±1.8 pp	5.8%	5.9%
Six-person households	151 ±86 · low precision	1.9% ±1.1 pp · low precision	2.1%	2.2%
Seven or more people	98 ±67 · low precision	1.2% ±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: 20,628
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Native	18,091 ±747	87.7% ±2.9 pp	85.3%	85.9%
Foreign born	2,537 ±678	12.3% ±3.3 pp	14.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 19,551
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
English only	14,391 ±927	73.6% ±4.4 pp	76.0%	77.7%
Spanish	3,351 ±670	17.1% ±3.4 pp	14.0%	13.6%
French, Haitian, or Cajun	5 ±8 · low precision	0.0% ±0.0 pp · low precision	0.3%	0.7%
German or other West Germanic	38 ±56 · low precision	0.2% ±0.3 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	872 ±512 · low precision	4.5% ±2.6 pp · low precision	2.5%	0.7%
Other Indo-European	221 ±144 · low precision	1.1% ±0.7 pp · low precision	2.6%	2.0%
Korean	0 ±24 · low precision	0.0% ±0.1 pp · low precision	0.3%	0.3%
Chinese, including Mandarin and Cantonese	13 ±23 · low precision	0.1% ±0.1 pp · low precision	0.9%	1.1%
Vietnamese	0 ±24 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	261 ±188 · low precision	1.3% ±1.0 pp · low precision	0.7%	0.6%
Other Asian and Pacific Island	144 ±134 · low precision	0.7% ±0.7 pp · low precision	1.0%	1.1%
Arabic	11 ±15 · low precision	0.1% ±0.1 pp · low precision	0.6%	0.5%
Other and unspecified	244 ±175 · low precision	1.2% ±0.9 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: 15,074
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Less than high school graduate	1,980 ±387	13.1% ±2.5 pp	9.5%	10.4%
High school graduate or equivalency	4,561 ±515	30.3% ±3.2 pp	25.1%	26.0%
Some college, no degree	3,358 ±464	22.3% ±3.0 pp	19.2%	19.1%
Associate’s degree	1,572 ±312	10.4% ±2.0 pp	8.3%	8.8%
Bachelor’s degree	2,187 ±365	14.5% ±2.4 pp	22.6%	21.6%
Graduate or professional degree	1,416 ±365	9.4% ±2.4 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: 20,379
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Same house	18,041 ±691	88.5% ±2.6 pp	88.9%	87.7%
Moved within same county	986 ±328	4.8% ±1.6 pp	6.4%	6.3%
Moved from a different county in the same state	1,205 ±319	5.9% ±1.6 pp	2.4%	3.1%
Moved from a different state	138 ±74 · low precision	0.7% ±0.4 pp · low precision	1.6%	2.3%
Moved from abroad	9 ±15 · low precision	0.0% ±0.1 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

6.8% of Crest Hill residents (±1.9 percentage points) had no health insurance coverage when surveyed, compared with 6.9% in Illinois and 8.4% nationally. 90.0% 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	Crest Hill	Illinois	U.S.	Compared with Illinois
People without health insurance Civilian noninstitutionalized population	6.8% ±1.9 pp	6.9%	8.4%	Not statistically different
Households with a broadband subscription Households	90.0% ±2.4 pp	90.8%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	6.0% ±1.2 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 Crest Hill . 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 Crest Hill housing and cost context or return to the city profile.