Demographics · WA
Seattle, WA demographics: 754,195 residents, with a median age of 35.6 years, from the U.S. Census Bureau's American Community Survey 2020–2024 (5-year estimates).
754,195people are estimated in Seattle, at a median age of 35.6 years (American Community Survey 2020–2024 period estimate)
Median age 35.6 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 Seattle, the largest race group is White (60.3%); 8.5% of residents are Hispanic or Latino (of any race); 20.2% were born outside the United States.
ACS 2020–2024 · B01001 / B01002
The estimated median age in Seattle is 35.6 years (±0.2), compared with the U.S. estimate of 38.9 ± 0.1 years. These are descriptive comparisons, not significance tests. The population is 50.9% ± 0.3 percentage points male and 49.1% ± 0.3 percentage points female. The largest age band is 25 to 34 at 25.1%.
| Age band | People | Share | ± margin |
|---|---|---|---|
| Under 5 | 31,970 | 4.2% ± 0.2 percentage points | ±1,481 |
| 5 to 17 | 71,853 | 9.5% ± 0.3 percentage points | ±2,032 |
| 18 to 24 | 75,263 | 10.0% ± 0.3 percentage points | ±2,304 |
| 25 to 34 | 189,247 | 25.1% ± 0.4 percentage points | ±2,948 |
| 35 to 44 | 126,160 | 16.7% ± 0.3 percentage points | ±2,620 |
| 45 to 54 | 89,454 | 11.9% ± 0.3 percentage points | ±1,900 |
| 55 to 64 | 72,052 | 9.6% ± 0.3 percentage points | ±2,052 |
| 65 to 74 | 58,352 | 7.7% ± 0.2 percentage points | ±1,778 |
| 75 and over | 39,844 | 5.3% ± 0.2 percentage points | ±1,501 |
Median age by sex: 35.4 (male) · 35.8 (female).
Shares may not sum to 100% due to rounding. 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 Seattle is White at 60.3% of the population. Separately, 8.5% 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 | 454,901 | 60.3% ± 0.6 percentage points | ±4,294 |
| Black or African American alone | 49,151 | 6.5% ± 0.3 percentage points | ±2,619 |
| American Indian & Alaska Native alone | 4,361 | 0.6% ± 0.1 percentage points | ±538 |
| Asian alone | 133,100 | 17.6% ± 0.5 percentage points | ±3,709 |
| Native Hawaiian & Pacific Islander alone | 1,868 | 0.2% ± 0.1 percentage points | ±468 |
| Some other race alone | 23,357 | 3.1% ± 0.3 percentage points | ±2,459 |
| Two or more races | 87,457 | 11.6% ± 0.4 percentage points | ±2,640 |
| Hispanic or Latino (of any race) | 63,894 | 8.5% ± 0.4 percentage points | ±2,678 |
Race shares may not sum to 100% due to rounding; race and Hispanic origin are separate questions and are not additive. 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
Seattle has 363,466 households. 42.0% are family households and 42.5% are people living alone. The average household holds 2.00 people.
Total households
363,466
ACS 2020–2024 5-yr · B11001
Avg household size
2.00
ACS 2020–2024 5-yr · B25010 · ±0.01
Family households
42.0% ± 0.4 percentage points
Share of all households · B11001
Living alone
42.5% ± 0.8 percentage points
Share of all households · B11001
| Household type | Households | ± margin |
|---|---|---|
| Total households | 363,466 | ±2,041 |
| Family households | 152,783 | ±1,839 |
| Nonfamily households | 210,683 | ±2,821 |
| Householder living alone | 154,647 | ±2,980 |
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
20.2% of Seattle residents were born outside the United States. 76.3% of residents age 5 and over speak only English at home. The most-spoken non-English language at home is Chinese (incl. Mandarin, Cantonese) (5.0%).
| Measure | Value | Source / grain |
|---|---|---|
| Foreign-born share | 20.2% ± 0.4 percentage points | 151,989 people · B05002 |
| Speak only English at home (age 5+) | 76.3% ± 0.5 percentage points | C16001 |
| Top non-English language at home | 5.0% ± 0.3 percentage points | Chinese (incl. Mandarin, Cantonese) · 36,036 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
68.4% ± 0.8 percentage points of adults age 25 and over in Seattle hold a bachelor's degree or higher. The U.S. estimate is 35.7%.
| Measure | Value | Source / grain |
|---|---|---|
| Bachelor's degree or higher (age 25+) | 68.4% | 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 Seattle is 5363000. 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/.