Fort Collins, Colorado demographics

Fort Collins, CO demographics: median age 30.9; 60.7% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Fort Collins city, Colorado · Incorporated city · GEOID 0827425. The survey estimates a population of 170,229 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Fort Collins is 30.9 years, with a 90% margin of error of 0.4 years. There are 71,768 households (±893). 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	30.9 ±0.4	37.7 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 170,229
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Under 18	28,064 ±1,153	16.5% ±0.7 pp	21.0%	22.0%
18–34	66,816 ±2,025	39.3% ±1.2 pp	24.8%	22.8%
35–64	53,605 ±1,515	31.5% ±0.9 pp	38.6%	38.0%
65 and older	21,744 ±940	12.8% ±0.6 pp	15.6%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 170,229
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Male	84,001 ±868	49.3% ±0.5 pp	50.7%	49.5%
Female	86,228 ±863	50.7% ±0.5 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: 170,229
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
White alone	136,803 ±1,392	80.4% ±0.8 pp	70.5%	61.0%
Black or African American alone	2,405 ±358	1.4% ±0.2 pp	4.0%	12.2%
American Indian and Alaska Native alone	989 ±320	0.6% ±0.2 pp	1.1%	0.9%
Asian alone	5,749 ±590	3.4% ±0.3 pp	3.3%	6.0%
Native Hawaiian and Other Pacific Islander alone	240 ±73	0.1% ±0.0 pp	0.2%	0.2%
Some other race alone	4,329 ±848	2.5% ±0.5 pp	6.0%	7.1%
Two or more races	19,714 ±1,452	11.6% ±0.9 pp	14.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 170,229
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Not Hispanic or Latino	148,478 ±1,150	87.2% ±0.7 pp	77.5%	80.7%
Hispanic or Latino	21,751 ±1,155	12.8% ±0.7 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: 71,768
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Married-couple family	29,213 ±851	40.7% ±1.1 pp	48.3%	46.9%
Other family: male householder, no spouse present	2,338 ±485	3.3% ±0.7 pp	4.5%	5.1%
Other family: female householder, no spouse present	4,894 ±457	6.8% ±0.6 pp	8.9%	12.2%
Nonfamily: householder living alone	20,040 ±937	27.9% ±1.3 pp	28.6%	28.7%
Nonfamily: householder not living alone	15,283 ±1,128	21.3% ±1.5 pp	9.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 71,768
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Households with people under 18	16,135 ±679	22.5% ±0.9 pp	28.4%	29.5%
Households without people under 18	55,633 ±1,127	77.5% ±1.2 pp	71.6%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 71,768
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
One-person nonfamily households	20,040 ±937	27.9% ±1.3 pp	28.6%	28.7%
Two-person households	27,073 ±1,380	37.7% ±1.9 pp	36.0%	33.8%
Three-person households	12,015 ±951	16.7% ±1.3 pp	14.8%	15.3%
Four-person households	8,682 ±767	12.1% ±1.1 pp	12.3%	12.6%
Five-person households	2,797 ±420	3.9% ±0.6 pp	5.1%	5.9%
Six-person households	876 ±184	1.2% ±0.3 pp	2.0%	2.2%
Seven or more people	285 ±123	0.4% ±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: 170,229
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Native	158,717 ±1,025	93.2% ±0.6 pp	90.2%	85.9%
Foreign born	11,512 ±1,029	6.8% ±0.6 pp	9.8%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 163,950
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
English only	147,505 ±1,369	90.0% ±0.8 pp	83.8%	77.7%
Spanish	9,386 ±1,091	5.7% ±0.7 pp	11.1%	13.6%
French, Haitian, or Cajun	528 ±227	0.3% ±0.1 pp	0.4%	0.7%
German or other West Germanic	666 ±171	0.4% ±0.1 pp	0.4%	0.5%
Russian, Polish, or other Slavic	377 ±122	0.2% ±0.1 pp	0.6%	0.7%
Other Indo-European	1,987 ±552	1.2% ±0.3 pp	1.0%	2.0%
Korean	354 ±259 · low precision	0.2% ±0.2 pp · low precision	0.2%	0.3%
Chinese, including Mandarin and Cantonese	1,288 ±413	0.8% ±0.3 pp	0.5%	1.1%
Vietnamese	136 ±83 · low precision	0.1% ±0.1 pp · low precision	0.4%	0.5%
Tagalog, including Filipino	156 ±118 · low precision	0.1% ±0.1 pp · low precision	0.2%	0.6%
Other Asian and Pacific Island	965 ±286	0.6% ±0.2 pp	0.6%	1.1%
Arabic	153 ±91 · low precision	0.1% ±0.1 pp · low precision	0.2%	0.5%
Other and unspecified	449 ±180	0.3% ±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: 105,671
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Less than high school graduate	2,615 ±427	2.5% ±0.4 pp	7.1%	10.4%
High school graduate or equivalency	13,659 ±931	12.9% ±0.9 pp	19.7%	26.0%
Some college, no degree	16,538 ±1,024	15.7% ±1.0 pp	19.2%	19.1%
Associate’s degree	8,727 ±746	8.3% ±0.7 pp	8.3%	8.8%
Bachelor’s degree	36,535 ±1,099	34.6% ±1.0 pp	28.1%	21.6%
Graduate or professional degree	27,597 ±1,090	26.1% ±1.0 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: 168,952
Category	Count ± MOE	Share ± MOE (pp)	Colorado	U.S.
Same house	128,009 ±2,344	75.8% ±1.4 pp	84.1%	87.7%
Moved within same county	18,754 ±1,789	11.1% ±1.1 pp	6.7%	6.3%
Moved from a different county in the same state	9,304 ±880	5.5% ±0.5 pp	4.8%	3.1%
Moved from a different state	11,715 ±1,101	6.9% ±0.7 pp	3.8%	2.3%
Moved from abroad	1,170 ±385	0.7% ±0.2 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

5.4% of Fort Collins residents (±0.5 percentage points) had no health insurance coverage when surveyed, compared with 7.7% in Colorado and 8.4% nationally. 92.2% 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	Fort Collins	Colorado	U.S.	Compared with Colorado
People without health insurance Civilian noninstitutionalized population	5.4% ±0.5 pp	7.7%	8.4%	Lower
Households with a broadband subscription Households	92.2% ±0.5 pp	93.5%	91.0%	Lower
Veterans Civilian population age 18 and older	5.0% ±0.5 pp	7.5%	6.2%	Lower

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 Fort Collins . 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 Fort Collins housing and cost context or return to the city profile.