Demographics · CA
Santa Maria, CA demographics: 110,462 residents, with a median age of 29.3 years, from the U.S. Census Bureau's American Community Survey 2020–2024 (5-year estimates).
110,462people live in Santa Maria, at a median age of 29.3 years (American Community Survey 2020–2024, a 5-year average)
Median age 29.3 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 Santa Maria, the largest race group is Two or more races (45.2%); 79.1% of residents are Hispanic or Latino (of any race); 33.0% were born outside the United States.
ACS 2020–2024 · B01001 / B01002
The median age in Santa Maria is 29.3 years (±0.6), younger than the U.S. median of 38.9 years. The population is 49.8% male and 50.2% female. The largest age band is 5 to 17 at 22.1%.
| Age band | People | Share | ± margin |
|---|---|---|---|
| Under 5 | 9,646 | 8.7% | ±756 |
| 5 to 17 | 24,463 | 22.1% | ±1,173 |
| 18 to 24 | 14,368 | 13.0% | ±1,020 |
| 25 to 34 | 15,163 | 13.7% | ±866 |
| 35 to 44 | 13,633 | 12.3% | ±801 |
| 45 to 54 | 11,516 | 10.4% | ±724 |
| 55 to 64 | 9,518 | 8.6% | ±755 |
| 65 to 74 | 7,145 | 6.5% | ±620 |
| 75 and over | 5,010 | 4.5% | ±512 |
Median age by sex: 28.4 (male) · 29.9 (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 Santa Maria is Two or more races at 45.2% of the population. Separately, 79.1% 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 | 27,457 | 24.9% | ±2,092 |
| Black or African American alone | 979 | 0.9% | ±343 |
| American Indian & Alaska Native alone | 4,412 | 4.0% | ±1,219 |
| Asian alone | 4,760 | 4.3% | ±710 |
| Native Hawaiian & Pacific Islander alone | 38 | 0.0% | ±37 · low precision |
| Some other race alone | 22,914 | 20.7% | ±2,222 |
| Two or more races | 49,902 | 45.2% | ±3,208 |
| Hispanic or Latino (of any race) | 87,357 | 79.1% | ±1,383 |
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
Santa Maria has 29,505 households. 77.4% are family households and 17.7% are people living alone. The average household holds 3.70 people.
Total households
29,505
ACS 2020–2024 5-yr · B11001
Avg household size
3.70
ACS 2020–2024 5-yr · B25010 · ±0.10
Family households
77.4%
Share of all households · B11001
Living alone
17.7%
Share of all households · B11001
| Household type | Households | ± margin |
|---|---|---|
| Total households | 29,505 | ±778 |
| Family households | 22,846 | ±603 |
| Nonfamily households | 6,659 | ±611 |
| Householder living alone | 5,212 | ±583 |
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
33.0% of Santa Maria residents were born outside the United States. 32.9% of residents age 5 and over speak only English at home. The most-spoken non-English language at home is Spanish (60.9%).
| Measure | Value | Source / grain |
|---|---|---|
| Foreign-born share | 33.0% | 36,399 people · B05002 |
| Speak only English at home (age 5+) | 32.9% | C16001 |
| Top non-English language at home | 60.9% | Spanish · 61,374 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
15.7% of adults age 25 and over in Santa Maria 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+) | 15.7% | 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 Santa Maria is 0669196. 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/.