Demographics & People

About 718,877 people live in Denver, in 335,428 households. Population grew 0.7% from 713,734 (2022) to 718,877 (2024). Median age 35.3 years. (2.2y younger than Colorado). Children under 18 are 18% of the population. Population is 54% White (non-Hispanic) and 28% Hispanic or Latino. The community is moderately diverse (Simpson index 0.55). 45% of households are family-led. County is losing 10,860 residents per year (2022-2023). County health: 24% adult obesity, 14% smoke.

2.1 people per household (vs Colorado avg 2.5).
55% non-family households (singles, roommates) (vs Colorado 38%).
44 dependents per 100 working-age (youth + seniors / 18-64) (vs Colorado 58).

Population & Trend

Population grew 0.7% from 713,734 (2022) to 718,877 (2024) — about 1.2× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~724,062 (extrapolated at 0.4%/yr trend). Census Bureau Vintage estimate: 731,007.

Census data vintage	2024
County Population	715,522 people
Annual growth rate · Population change	72.0%
Annual growth rate · Population (2022)	713,734
Annual growth rate · Population (2024)	718,877
Annual growth rate · Population growing	Yes
Annual growth rate · Trend category	stable
Population	718,877 people (vs Colorado 108,201)
Population Estimate	731,007

Sources: U.S. Census Bureau, ACS 5-Year · U.S. Census Bureau, ACS 5-Year DP05 · U.S. Census Bureau, Vintage Population Estimates · Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12

Age Distribution

Median age 35.3y is 3.6 years younger than the U.S. median (38.9y). Children under 18 make up 18% — below the U.S. share of ~22%.

Age Summary · Median age	35.3 years (vs Colorado 35.7y)
Age Summary · Children Pct	18.0%
Age Summary · Character	family-oriented
Age Summary · Total Pop	718,877
Age Summary · Under 18	129,515
Age Summary · 18 To 34	225,829
Age Summary · 35 To 64	273,822
Age Summary · 65 Plus	89,711
Median age	35.3 years (vs Colorado 35.7y)

Sources: Census ACS 5-Year 2024 — place-level B01001 query · Census ACS 5-Year 2023 · Refreshed 2026-04-29

Race, Ethnicity & Diversity

Of 718,877 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.55 (0 = single group, 1 = perfectly even distribution); this is read as moderately diverse.

Diversity Index · Diversity index (Simpson)	54.7%
Diversity Index · Diversity label	moderately diverse
Diversity Index · Groups counted	4
Diversity Index · Largest group share	60.9%
Asian population	3.6% (vs Colorado 3.3%)
Black population	8.6% (vs Colorado 2.0%)
Hispanic or Latino population	28.0% (vs Colorado 22.6%)
White (non-Hispanic) population	54.0% (vs Colorado 65.2%)

Sources: U.S. Census Bureau, ACS 5-Year DP05 · Census ACS 5-Year 2023 · Refreshed 2026-04-12

Ancestry

Self-reported ancestry from Census ACS — what residents report as their ethnic origin, separate from race. Counts can exceed population because people can list multiple ancestries.

Top (1)

(unnamed)

Hispanic Total

Sources: Census ACS 2022 B04006+B03001+B02001

Households & Family Composition

335,428 households. Averaging 2.1 people each — smaller than the U.S. average of 2.5. 45% are family households — below the U.S. share of ~65%. Of 150,345 families, 30% are married couples with children.

Family households	151,912 households (vs Colorado 26,135)
Households that are families	45.3% (vs Colorado 62.3%)
Total households	335,428 households (vs Colorado 42,233)

Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12

Residential Stability & Migration

How long residents have lived here and where they came from. 19.8% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 10,860 residents per year on net (IRS migration data).

Migration · People moving in (annual)	686,764
Migration · People moving out (annual)	697,624
Migration · Net migration (in − out)	-10,860

Sources: IRS SOI Migration 2021-2022 · Refreshed 2026-04-12