Aurora, Colorado demographics

Aurora, CO demographics: median age 35.3; 33.6% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Aurora city, Colorado · Incorporated city · GEOID 0804000. The survey estimates a population of 394,432 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Aurora is 35.3 years, with a 90% margin of error of 0.3 years. There are 145,310 households (±1,460). 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	35.3 ±0.3	37.7 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 394,432
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Under 18	94,130 ±2,092	23.9% ±0.5 pp	21.0%	22.0%
18–34	101,251 ±2,012	25.7% ±0.5 pp	24.8%	22.8%
35–64	150,055 ±2,734	38.0% ±0.7 pp	38.6%	38.0%
65 and older	48,996 ±1,546	12.4% ±0.4 pp	15.6%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 394,432
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Male	198,558 ±1,518	50.3% ±0.4 pp	50.7%	49.5%
Female	195,874 ±1,507	49.7% ±0.4 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: 394,432
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
White alone	179,708 ±2,969	45.6% ±0.8 pp	70.5%	61.0%
Black or African American alone	62,603 ±2,445	15.9% ±0.6 pp	4.0%	12.2%
American Indian and Alaska Native alone	4,614 ±1,006	1.2% ±0.3 pp	1.1%	0.9%
Asian alone	23,894 ±1,306	6.1% ±0.3 pp	3.3%	6.0%
Native Hawaiian and Other Pacific Islander alone	1,617 ±265	0.4% ±0.1 pp	0.2%	0.2%
Some other race alone	49,419 ±2,594	12.5% ±0.7 pp	6.0%	7.1%
Two or more races	72,577 ±3,598	18.4% ±0.9 pp	14.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 394,432
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Not Hispanic or Latino	270,696 ±2,501	68.6% ±0.6 pp	77.5%	80.7%
Hispanic or Latino	123,736 ±2,497	31.4% ±0.6 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: 145,310
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Married-couple family	64,810 ±1,641	44.6% ±1.0 pp	48.3%	46.9%
Other family: male householder, no spouse present	9,977 ±805	6.9% ±0.5 pp	4.5%	5.1%
Other family: female householder, no spouse present	19,037 ±1,046	13.1% ±0.7 pp	8.9%	12.2%
Nonfamily: householder living alone	38,244 ±1,556	26.3% ±1.0 pp	28.6%	28.7%
Nonfamily: householder not living alone	13,242 ±926	9.1% ±0.6 pp	9.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 145,310
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Households with people under 18	48,240 ±1,257	33.2% ±0.8 pp	28.4%	29.5%
Households without people under 18	97,070 ±1,907	66.8% ±1.1 pp	71.6%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 145,310
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
One-person nonfamily households	38,244 ±1,556	26.3% ±1.0 pp	28.6%	28.7%
Two-person households	45,187 ±1,637	31.1% ±1.1 pp	36.0%	33.8%
Three-person households	24,340 ±1,089	16.8% ±0.7 pp	14.8%	15.3%
Four-person households	20,284 ±1,074	14.0% ±0.7 pp	12.3%	12.6%
Five-person households	9,264 ±772	6.4% ±0.5 pp	5.1%	5.9%
Six-person households	5,094 ±579	3.5% ±0.4 pp	2.0%	2.2%
Seven or more people	2,897 ±397	2.0% ±0.3 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: 394,432
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Native	306,206 ±2,853	77.6% ±0.7 pp	90.2%	85.9%
Foreign born	88,226 ±2,859	22.4% ±0.7 pp	9.8%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 368,652
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
English only	246,483 ±3,802	66.9% ±1.0 pp	83.8%	77.7%
Spanish	77,513 ±2,966	21.0% ±0.8 pp	11.1%	13.6%
French, Haitian, or Cajun	3,761 ±1,153	1.0% ±0.3 pp	0.4%	0.7%
German or other West Germanic	1,095 ±260	0.3% ±0.1 pp	0.4%	0.5%
Russian, Polish, or other Slavic	3,990 ±817	1.1% ±0.2 pp	0.6%	0.7%
Other Indo-European	6,231 ±1,015	1.7% ±0.3 pp	1.0%	2.0%
Korean	2,263 ±590	0.6% ±0.2 pp	0.2%	0.3%
Chinese, including Mandarin and Cantonese	1,890 ±388	0.5% ±0.1 pp	0.5%	1.1%
Vietnamese	3,203 ±822	0.9% ±0.2 pp	0.4%	0.5%
Tagalog, including Filipino	1,237 ±315	0.3% ±0.1 pp	0.2%	0.6%
Other Asian and Pacific Island	4,664 ±902	1.3% ±0.2 pp	0.6%	1.1%
Arabic	3,133 ±894	0.8% ±0.2 pp	0.2%	0.5%
Other and unspecified	13,189 ±1,717	3.6% ±0.5 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: 263,093
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Less than high school graduate	36,128 ±1,885	13.7% ±0.7 pp	7.1%	10.4%
High school graduate or equivalency	61,466 ±2,292	23.4% ±0.9 pp	19.7%	26.0%
Some college, no degree	53,983 ±1,971	20.5% ±0.7 pp	19.2%	19.1%
Associate’s degree	22,991 ±1,219	8.7% ±0.5 pp	8.3%	8.8%
Bachelor’s degree	57,180 ±1,712	21.7% ±0.6 pp	28.1%	21.6%
Graduate or professional degree	31,345 ±1,549	11.9% ±0.6 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: 389,678
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Same house	324,745 ±3,259	83.3% ±0.8 pp	84.1%	87.7%
Moved within same county	26,808 ±2,318	6.9% ±0.6 pp	6.7%	6.3%
Moved from a different county in the same state	22,755 ±1,808	5.8% ±0.5 pp	4.8%	3.1%
Moved from a different state	10,994 ±1,165	2.8% ±0.3 pp	3.8%	2.3%
Moved from abroad	4,376 ±1,076	1.1% ±0.3 pp	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

13.7% of Aurora residents (±0.6 percentage points) had no health insurance coverage when surveyed, compared with 7.7% in Colorado and 8.4% nationally. 93.6% 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	Aurora	Colorado	U.S.	Compared with Colorado
People without health insurance Civilian noninstitutionalized population	13.7% ±0.6 pp	7.7%	8.4%	Higher
Households with a broadband subscription Households	93.6% ±0.6 pp	93.5%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	7.1% ±0.4 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 Aurora . 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 Aurora housing and cost context or return to the city profile.