Demographics · CA
Thousand Oaks, CA demographics: 125,205 residents, with a median age of 44.9 years, from the U.S. Census Bureau's American Community Survey 2020–2024 (5-year estimates).
125,205people live in Thousand Oaks, at a median age of 44.9 years (American Community Survey 2020–2024, a 5-year average)
Median age 44.9 years — older than the U.S. median of 38.9.
ACS 2020–2024 5-year · ACS 5-Year Estimates 2020-2024 (released 2026-01-29)
In Thousand Oaks, the largest race group is White (65.6%); 20.6% of residents are Hispanic or Latino (of any race); 18.8% were born outside the United States.
ACS 2020–2024 · B01001 / B01002
The median age in Thousand Oaks is 44.9 years (±1.0), older than the U.S. median of 38.9 years. The population is 49.5% male and 50.5% female. The largest age band is 55 to 64 at 15.6%.
| Age band | People | Share | ± margin |
|---|---|---|---|
| Under 5 | 5,447 | 4.4% | ±580 |
| 5 to 17 | 18,977 | 15.2% | ±1,013 |
| 18 to 24 | 11,301 | 9.0% | ±871 |
| 25 to 34 | 13,092 | 10.5% | ±893 |
| 35 to 44 | 13,886 | 11.1% | ±891 |
| 45 to 54 | 17,053 | 13.6% | ±962 |
| 55 to 64 | 19,521 | 15.6% | ±1,073 |
| 65 to 74 | 13,926 | 11.1% | ±926 |
| 75 and over | 12,002 | 9.6% | ±822 |
Median age by sex: 42.5 (male) · 47.1 (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 Thousand Oaks is White at 65.6% of the population. Separately, 20.6% 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 | 82,152 | 65.6% | ±1,681 |
| Black or African American alone | 2,316 | 1.8% | ±513 |
| American Indian & Alaska Native alone | 861 | 0.7% | ±282 |
| Asian alone | 11,013 | 8.8% | ±945 |
| Native Hawaiian & Pacific Islander alone | 91 | 0.1% | ±95 · low precision |
| Some other race alone | 7,238 | 5.8% | ±1,053 |
| Two or more races | 21,534 | 17.2% | ±1,734 |
| Hispanic or Latino (of any race) | 25,835 | 20.6% | ±1,572 |
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
Thousand Oaks has 46,546 households. 68.7% are family households and 25.1% are people living alone. The average household holds 2.63 people.
Total households
46,546
ACS 2020–2024 5-yr · B11001
Avg household size
2.63
ACS 2020–2024 5-yr · B25010 · ±0.05
Family households
68.7%
Share of all households · B11001
Living alone
25.1%
Share of all households · B11001
| Household type | Households | ± margin |
|---|---|---|
| Total households | 46,546 | ±849 |
| Family households | 31,965 | ±733 |
| Nonfamily households | 14,581 | ±990 |
| Householder living alone | 11,682 | ±930 |
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
18.8% of Thousand Oaks residents were born outside the United States. 76.6% of residents age 5 and over speak only English at home. The most-spoken non-English language at home is Spanish (12.6%).
| Measure | Value | Source / grain |
|---|---|---|
| Foreign-born share | 18.8% | 23,567 people · B05002 |
| Speak only English at home (age 5+) | 76.6% | C16001 |
| Top non-English language at home | 12.6% | Spanish · 15,148 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
51.4% of adults age 25 and over in Thousand Oaks 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+) | 51.4% | 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 Thousand Oaks is 0678582. 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/.