Demographics · CO
Fort Collins, CO demographics: 170,229 residents, with a median age of 30.9 years, from the U.S. Census Bureau's American Community Survey 2020–2024 (5-year estimates).
170,229 people live in Fort Collins, at a median age of 30.9 years (American Community Survey 2020–2024, a 5-year average)
Median age 30.9 years — younger than the U.S. median of 38.9.
ACS 2020–2024 5-year · ACS 5-Year Estimates 2020-2024 (released 2026-01-29)
In Fort Collins, the largest race group is White (80.4%); 12.8% of residents are Hispanic or Latino (of any race); 6.8% were born outside the United States.
ACS 2020–2024 · B01001 / B01002
The median age in Fort Collins is 30.9 years (±0.4), younger than the U.S. median of 38.9 years. The population is 49.3% male and 50.7% female. The largest age band is 18 to 24 at 21.4%.
| Age band | People | Share | ± margin |
|---|---|---|---|
| Under 5 | 6,279 | 3.7% | ±617 |
| 5 to 17 | 21,785 | 12.8% | ±974 |
| 18 to 24 | 36,494 | 21.4% | ±1,747 |
| 25 to 34 | 30,322 | 17.8% | ±1,025 |
| 35 to 44 | 21,949 | 12.9% | ±1,015 |
| 45 to 54 | 16,423 | 9.6% | ±790 |
| 55 to 64 | 15,233 | 8.9% | ±801 |
| 65 to 74 | 13,061 | 7.7% | ±703 |
| 75 and over | 8,683 | 5.1% | ±624 |
Median age by sex: 30.9 (male) · 30.9 (female).
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B01001 sex by age, B01002 median age) · place-grain · margins of error at the 90% confidence level · methodology →
ACS 2020–2024 · B02001 / B03003
The largest race group in Fort Collins is White at 80.4% of the population. Separately, 12.8% of residents are Hispanic or Latino of any race. Race and Hispanic origin are two different questions on the census form, so their shares are reported separately and are not additive.
| Race (alone, or two or more) | People | Share | ± margin |
|---|---|---|---|
| White alone | 136,803 | 80.4% | ±1,392 |
| Black or African American alone | 2,405 | 1.4% | ±358 |
| American Indian & Alaska Native alone | 989 | 0.6% | ±320 |
| Asian alone | 5,749 | 3.4% | ±590 |
| Native Hawaiian & Pacific Islander alone | 240 | 0.1% | ±73 |
| Some other race alone | 4,329 | 2.5% | ±848 |
| Two or more races | 19,714 | 11.6% | ±1,452 |
| Hispanic or Latino (of any race) | 21,751 | 12.8% | ±1,155 |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B02001 race, B03003 Hispanic or Latino origin) · place-grain · margins of error at the 90% confidence level · methodology →
ACS 2020–2024 · B11001 / B25010
Fort Collins has 71,768 households. 50.8% are family households and 27.9% are people living alone. The average household holds 2.25 people.
Total households
71,768
ACS 2020–2024 5-yr · B11001
Avg household size
2.25
ACS 2020–2024 5-yr · B25010 · ±0.03
Family households
50.8%
Share of all households · B11001
Living alone
27.9%
Share of all households · B11001
| Household type | Households | ± margin |
|---|---|---|
| Total households | 71,768 | ±893 |
| Family households | 36,445 | ±980 |
| Nonfamily households | 35,323 | ±1,090 |
| Householder living alone | 20,040 | ±937 |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B11001 household type, B25010 average household size) · place-grain · methodology →
ACS 2020–2024 · B05002 / C16001
6.8% of Fort Collins residents were born outside the United States. 90.0% of residents age 5 and over speak only English at home. The most-spoken non-English language at home is Spanish (5.7%).
| Measure | Value | Source / grain |
|---|---|---|
| Foreign-born share | 6.8% | 11,512 people · B05002 |
| Speak only English at home (age 5+) | 90.0% | C16001 |
| Top non-English language at home | 5.7% | Spanish · 9,386 speakers · C16001 |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B05002 place of birth, C16001 language spoken at home) · place-grain · methodology →
ACS 2020–2024 · B15003
60.7% of adults age 25 and over in Fort Collins hold a bachelor's degree or higher (the U.S. share is about 35%).
| Measure | Value | Source / grain |
|---|---|---|
| Bachelor's degree or higher (age 25+) | 60.7% | B15003 lines 22–25 over line 1 · place-grain |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B15003 educational attainment, population 25+) · place-grain · methodology →
Sources · provenance
The GEOID for Fort Collins is 0827425. Every figure on this page is a place-grain American Community Survey 5-Year 2020–2024 estimate (ACS 5-Year Estimates 2020-2024 (released 2026-01-29)) shown with its margin of error. Full per-dataset detail: /sources/.