Demographics · CA
San Diego, CA demographics: 1,389,526 residents, with a median age of 36.2 years, from the U.S. Census Bureau's American Community Survey 2020–2024 (5-year estimates).
1,389,526people are estimated in San Diego, at a median age of 36.2 years (American Community Survey 2020–2024 period estimate)
Median age 36.2 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 San Diego, the largest race group is White (46.6%); 29.8% of residents are Hispanic or Latino (of any race); 25.1% were born outside the United States.
ACS 2020–2024 · B01001 / B01002
The estimated median age in San Diego is 36.2 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 50.7% ± 0.2 percentage points male and 49.3% ± 0.2 percentage points female. The largest age band is 25 to 34 at 18.8%.
| Age band | People | Share | ± margin |
|---|---|---|---|
| Under 5 | 70,389 | 5.1% ± 0.2 percentage points | ±2,100 |
| 5 to 17 | 185,693 | 13.4% ± 0.3 percentage points | ±3,501 |
| 18 to 24 | 149,371 | 10.7% ± 0.2 percentage points | ±3,053 |
| 25 to 34 | 260,873 | 18.8% ± 0.2 percentage points | ±3,326 |
| 35 to 44 | 204,955 | 14.7% ± 0.3 percentage points | ±3,624 |
| 45 to 54 | 165,813 | 11.9% ± 0.2 percentage points | ±2,502 |
| 55 to 64 | 149,300 | 10.7% ± 0.2 percentage points | ±2,741 |
| 65 to 74 | 116,657 | 8.4% ± 0.2 percentage points | ±2,632 |
| 75 and over | 86,475 | 6.2% ± 0.1 percentage points | ±2,067 |
Median age by sex: 35.5 (male) · 37.0 (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 San Diego is White at 46.6% of the population. Separately, 29.8% 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 | 647,607 | 46.6% ± 0.4 percentage points | ±5,986 |
| Black or African American alone | 77,964 | 5.6% ± 0.2 percentage points | ±3,071 |
| American Indian & Alaska Native alone | 10,749 | 0.8% ± 0.1 percentage points | ±1,151 |
| Asian alone | 244,686 | 17.6% ± 0.3 percentage points | ±4,411 |
| Native Hawaiian & Pacific Islander alone | 5,930 | 0.4% ± 0.1 percentage points | ±917 |
| Some other race alone | 144,841 | 10.4% ± 0.4 percentage points | ±5,023 |
| Two or more races | 257,749 | 18.5% ± 0.5 percentage points | ±6,437 |
| Hispanic or Latino (of any race) | 414,040 | 29.8% ± 0.4 percentage points | ±5,585 |
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
San Diego has 530,412 households. 58.6% are family households and 29.0% are people living alone. The average household holds 2.52 people.
Total households
530,412
ACS 2020–2024 5-yr · B11001
Avg household size
2.52
ACS 2020–2024 5-yr · B25010 · ±0.01
Family households
58.6% ± 0.4 percentage points
Share of all households · B11001
Living alone
29.0% ± 0.6 percentage points
Share of all households · B11001
| Household type | Households | ± margin |
|---|---|---|
| Total households | 530,412 | ±2,344 |
| Family households | 310,973 | ±2,660 |
| Nonfamily households | 219,439 | ±3,275 |
| Householder living alone | 153,780 | ±3,363 |
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
25.1% of San Diego residents were born outside the United States. 61.0% of residents age 5 and over speak only English at home. The most-spoken non-English language at home is Spanish (21.4%).
| Measure | Value | Source / grain |
|---|---|---|
| Foreign-born share | 25.1% ± 0.4 percentage points | 349,362 people · B05002 |
| Speak only English at home (age 5+) | 61.0% ± 0.5 percentage points | C16001 |
| Top non-English language at home | 21.4% ± 0.4 percentage points | Spanish · 281,694 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
51.0% ± 0.5 percentage points of adults age 25 and over in San Diego 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+) | 51.0% | 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 San Diego is 0666000. 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/.