Thousand Oaks Population

1950–2026

121.43K

2026 projection

4.4% since 2020 (decrease)

020K40K60K80K100K120K140K19501960197019801990200020102020

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Thousand Oaks. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026121,431-7990.65%
2025122,230-1,3871.12%
2024123,617-3090.25%
2023123,926-7510.60%
2022124,677-1,4431.14%
2021126,120-8460.67%
2020126,966-5140.40%
2019127,480-7860.61%
2018128,266-4220.33%
2017128,688+350.03%

Showing 10 of 23 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

Thousand Oaks has a population change lower than Ventura County, California, and the U.S.

  • United States+3.1%
  • California−0.4%
  • Ventura County−1.5%
  • Thousand Oaks−3.6%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Thousand Oaks Demographics

44.9median age

Median age

Female47.1 yrs
Male42.5 yrs

Adults

100,781
25,928 seniors (65+) · 26% of adults74,853 other adults

Sex

Female 50.5% · 63,243Male 49.5% · 61,962

Population by age

MaleFemale85+ years, male: 1,64685+ years, female: 2,37680–84 years, male: 1,48580–84 years, female: 1,62075–79 years, male: 1,93675–79 years, female: 2,93970–74 years, male: 2,80370–74 years, female: 3,32465–69 years, male: 3,54365–69 years, female: 4,25660–64 years, male: 4,49960–64 years, female: 4,71455–59 years, male: 4,91155–59 years, female: 5,39750–54 years, male: 5,00850–54 years, female: 4,78845–49 years, male: 3,45545–49 years, female: 3,80240–44 years, male: 3,52540–44 years, female: 3,38235–39 years, male: 3,40035–39 years, female: 3,57930–34 years, male: 3,29530–34 years, female: 3,19325–29 years, male: 3,46825–29 years, female: 3,13620–24 years, male: 3,89820–24 years, female: 3,97715–19 years, male: 4,66015–19 years, female: 3,89610–14 years, male: 3,83210–14 years, female: 3,1775–9 years, male: 3,6385–9 years, female: 3,2000–4 years, male: 2,9600–4 years, female: 2,48785+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–42K2K4K4K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 1,252 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Thousand Oaks Income

$135,603median household income

Median household income

$135,603

Half of households earn more, half earn less

Median earnings

$75,579

Typical yearly pay for a worker 25 or older.

Poverty rate

8.9%

About 1 in 11 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Thousand Oaks Marital Status

52% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married52%54%51%
Never married30%34%27%
Divorced10%8%12%
Widowed6%4%9%
Separated1%<1%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

14 sources

Population

American Community Survey, 2024 5-year

Additional sources