Centennial, Colorado demographics

Centennial, CO demographics: median age 42.0; 62.6% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Centennial city, Colorado · Incorporated city · GEOID 0812815. The survey estimates a population of 108,201 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Centennial is 42.0 years, with a 90% margin of error of 0.7 years. There are 42,233 households (±694). 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	42.0 ±0.7	37.7 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 108,201
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Under 18	23,641 ±1,039	21.8% ±1.0 pp	21.0%	22.0%
18–34	19,731 ±1,005	18.2% ±0.9 pp	24.8%	22.8%
35–64	44,363 ±1,339	41.0% ±1.2 pp	38.6%	38.0%
65 and older	20,466 ±888	18.9% ±0.8 pp	15.6%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 108,201
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Male	53,698 ±797	49.6% ±0.7 pp	50.7%	49.5%
Female	54,503 ±796	50.4% ±0.7 pp	49.3%	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: 108,201
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
White alone	83,240 ±1,558	76.9% ±1.4 pp	70.5%	61.0%
Black or African American alone	3,118 ±521	2.9% ±0.5 pp	4.0%	12.2%
American Indian and Alaska Native alone	306 ±127	0.3% ±0.1 pp	1.1%	0.9%
Asian alone	6,894 ±876	6.4% ±0.8 pp	3.3%	6.0%
Native Hawaiian and Other Pacific Islander alone	298 ±193 · low precision	0.3% ±0.2 pp · low precision	0.2%	0.2%
Some other race alone	1,947 ±499	1.8% ±0.5 pp	6.0%	7.1%
Two or more races	12,398 ±1,177	11.5% ±1.1 pp	14.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 108,201
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Not Hispanic or Latino	97,095 ±955	89.7% ±0.9 pp	77.5%	80.7%
Hispanic or Latino	11,106 ±954	10.3% ±0.9 pp	22.5%	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: 42,233
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Married-couple family	25,656 ±655	60.7% ±1.2 pp	48.3%	46.9%
Other family: male householder, no spouse present	1,430 ±249	3.4% ±0.6 pp	4.5%	5.1%
Other family: female householder, no spouse present	3,495 ±410	8.3% ±1.0 pp	8.9%	12.2%
Nonfamily: householder living alone	9,574 ±732	22.7% ±1.7 pp	28.6%	28.7%
Nonfamily: householder not living alone	2,078 ±335	4.9% ±0.8 pp	9.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 42,233
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Households with people under 18	13,892 ±482	32.9% ±1.0 pp	28.4%	29.5%
Households without people under 18	28,341 ±890	67.1% ±1.8 pp	71.6%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 42,233
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
One-person nonfamily households	9,574 ±732	22.7% ±1.7 pp	28.6%	28.7%
Two-person households	15,366 ±741	36.4% ±1.6 pp	36.0%	33.8%
Three-person households	7,501 ±636	17.8% ±1.5 pp	14.8%	15.3%
Four-person households	6,443 ±416	15.3% ±1.0 pp	12.3%	12.6%
Five-person households	2,568 ±335	6.1% ±0.8 pp	5.1%	5.9%
Six-person households	520 ±140	1.2% ±0.3 pp	2.0%	2.2%
Seven or more people	261 ±92	0.6% ±0.2 pp	1.1%	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: 108,201
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Native	97,495 ±926	90.1% ±0.9 pp	90.2%	85.9%
Foreign born	10,706 ±930	9.9% ±0.9 pp	9.8%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 102,739
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
English only	89,904 ±1,280	87.5% ±1.2 pp	83.8%	77.7%
Spanish	4,804 ±835	4.7% ±0.8 pp	11.1%	13.6%
French, Haitian, or Cajun	412 ±172	0.4% ±0.2 pp	0.4%	0.7%
German or other West Germanic	236 ±86	0.2% ±0.1 pp	0.4%	0.5%
Russian, Polish, or other Slavic	1,064 ±296	1.0% ±0.3 pp	0.6%	0.7%
Other Indo-European	1,855 ±449	1.8% ±0.4 pp	1.0%	2.0%
Korean	578 ±236	0.6% ±0.2 pp	0.2%	0.3%
Chinese, including Mandarin and Cantonese	1,106 ±383	1.1% ±0.4 pp	0.5%	1.1%
Vietnamese	364 ±204 · low precision	0.4% ±0.2 pp · low precision	0.4%	0.5%
Tagalog, including Filipino	287 ±156 · low precision	0.3% ±0.2 pp · low precision	0.2%	0.6%
Other Asian and Pacific Island	1,156 ±315	1.1% ±0.3 pp	0.6%	1.1%
Arabic	569 ±264	0.6% ±0.3 pp	0.2%	0.5%
Other and unspecified	404 ±154	0.4% ±0.1 pp	0.7%	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: 78,012
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Less than high school graduate	2,420 ±459	3.1% ±0.6 pp	7.1%	10.4%
High school graduate or equivalency	9,338 ±679	12.0% ±0.9 pp	19.7%	26.0%
Some college, no degree	12,285 ±813	15.7% ±1.0 pp	19.2%	19.1%
Associate’s degree	5,155 ±462	6.6% ±0.6 pp	8.3%	8.8%
Bachelor’s degree	29,366 ±980	37.6% ±1.2 pp	28.1%	21.6%
Graduate or professional degree	19,448 ±920	24.9% ±1.1 pp	17.6%	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: 107,221
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Same house	95,608 ±1,137	89.2% ±1.0 pp	84.1%	87.7%
Moved within same county	4,076 ±730	3.8% ±0.7 pp	6.7%	6.3%
Moved from a different county in the same state	4,688 ±719	4.4% ±0.7 pp	4.8%	3.1%
Moved from a different state	2,362 ±488	2.2% ±0.5 pp	3.8%	2.3%
Moved from abroad	487 ±347 · low precision	0.5% ±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

3.8% of Centennial residents (±0.6 percentage points) had no health insurance coverage when surveyed, compared with 7.7% in Colorado and 8.4% nationally. 96.9% 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	Centennial	Colorado	U.S.	Compared with Colorado
People without health insurance Civilian noninstitutionalized population	3.8% ±0.6 pp	7.7%	8.4%	Lower
Households with a broadband subscription Households	96.9% ±2.2 pp	93.5%	91.0%	Higher
Veterans Civilian population age 18 and older	7.2% ±0.6 pp	7.5%	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 Centennial . 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 Centennial housing and cost context or return to the city profile.