Demographics · NY
Buffalo, NY demographics: 276,854 residents, with a median age of 34.3 years, from the U.S. Census Bureau's American Community Survey 2020–2024 (5-year estimates).
276,854 people live in Buffalo, at a median age of 34.3 years (American Community Survey 2020–2024, a 5-year average)
Median age 34.3 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 Buffalo, the largest race group is White (44.3%); 12.3% of residents are Hispanic or Latino (of any race); 10.9% were born outside the United States.
ACS 2020–2024 · B01001 / B01002
The median age in Buffalo is 34.3 years (±0.5), younger than the U.S. median of 38.9 years. The population is 47.7% male and 52.3% female. The largest age band is 25 to 34 at 17.8%.
| Age band | People | Share | ± margin |
|---|---|---|---|
| Under 5 | 16,746 | 6.0% | ±910 |
| 5 to 17 | 45,055 | 16.3% | ±1,459 |
| 18 to 24 | 30,226 | 10.9% | ±1,657 |
| 25 to 34 | 49,150 | 17.8% | ±1,391 |
| 35 to 44 | 35,297 | 12.7% | ±1,431 |
| 45 to 54 | 28,902 | 10.4% | ±1,161 |
| 55 to 64 | 32,199 | 11.6% | ±1,448 |
| 65 to 74 | 25,306 | 9.1% | ±1,186 |
| 75 and over | 13,973 | 5.0% | ±874 |
Median age by sex: 33.7 (male) · 35.1 (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 Buffalo is White at 44.3% of the population. Separately, 12.3% 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 | 122,709 | 44.3% | ±2,446 |
| Black or African American alone | 89,107 | 32.2% | ±2,388 |
| American Indian & Alaska Native alone | 1,233 | 0.4% | ±247 |
| Asian alone | 24,364 | 8.8% | ±1,560 |
| Native Hawaiian & Pacific Islander alone | 14 | 0.0% | ±20 · low precision |
| Some other race alone | 14,571 | 5.3% | ±1,415 |
| Two or more races | 24,856 | 9.0% | ±2,246 |
| Hispanic or Latino (of any race) | 33,987 | 12.3% | ±1,263 |
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
Buffalo has 119,630 households. 48.7% are family households and 40.7% are people living alone. The average household holds 2.25 people.
Total households
119,630
ACS 2020–2024 5-yr · B11001
Avg household size
2.25
ACS 2020–2024 5-yr · B25010 · ±0.03
Family households
48.7%
Share of all households · B11001
Living alone
40.7%
Share of all households · B11001
| Household type | Households | ± margin |
|---|---|---|
| Total households | 119,630 | ±1,553 |
| Family households | 58,300 | ±1,273 |
| Nonfamily households | 61,330 | ±1,595 |
| Householder living alone | 48,716 | ±1,598 |
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
10.9% of Buffalo residents were born outside the United States. 80.8% of residents age 5 and over speak only English at home. The most-spoken non-English language at home is Spanish (6.8%).
| Measure | Value | Source / grain |
|---|---|---|
| Foreign-born share | 10.9% | 30,142 people · B05002 |
| Speak only English at home (age 5+) | 80.8% | C16001 |
| Top non-English language at home | 6.8% | Spanish · 17,610 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
31.2% of adults age 25 and over in Buffalo 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+) | 31.2% | 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 Buffalo is 3611000. 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/.