Fullerton Population

1900–2026

137.71K

2026 projection

4.1% since 2020 (decrease)

050K100K150K200K1900192019401960198020002020

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 Fullerton. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026137,712-9630.69%
2025138,675-9370.67%
2024139,612-3290.24%
2023139,941-8950.64%
2022140,836+4770.34%
2021140,359-3,2582.27%
2020143,617-1190.08%
2019143,736-4140.29%
2018144,150-1700.12%
2017144,320+6030.42%

Showing 10 of 28 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

Fullerton has a population change lower than Orange County, California, and the U.S.

  • United States+3.1%
  • California−0.4%
  • Orange County−1.2%
  • Fullerton−3.3%

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.

Fullerton Demographics

36.9median age

Median age

Female37.7 yrs
Male36.2 yrs

Adults

109,773
21,435 seniors (65+) · 20% of adults88,338 other adults

Sex

Female 50.4% · 71,110Male 49.6% · 69,858

Population by age

MaleFemale85+ years, male: 1,17185+ years, female: 1,93380–84 years, male: 1,10380–84 years, female: 1,59175–79 years, male: 1,64475–79 years, female: 2,02970–74 years, male: 2,20670–74 years, female: 2,53065–69 years, male: 3,52565–69 years, female: 3,70360–64 years, male: 4,46560–64 years, female: 3,83055–59 years, male: 4,15655–59 years, female: 4,43250–54 years, male: 4,58050–54 years, female: 4,85745–49 years, male: 4,14745–49 years, female: 4,76040–44 years, male: 4,47040–44 years, female: 4,00835–39 years, male: 5,15735–39 years, female: 4,00930–34 years, male: 5,64330–34 years, female: 5,06325–29 years, male: 5,52325–29 years, female: 5,37820–24 years, male: 4,64520–24 years, female: 5,38315–19 years, male: 4,38015–19 years, female: 4,50610–14 years, male: 5,41610–14 years, female: 5,0535–9 years, male: 3,6775–9 years, female: 3,9170–4 years, male: 3,9500–4 years, female: 4,12885+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 1,410 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

Fullerton Income

$104,286median household income

Median household income

$104,286

Half of households earn more, half earn less

Median earnings

$60,208

Typical yearly pay for a worker 25 or older.

Poverty rate

12.3%

About 1 in 8 residents

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

Fullerton Marital Status

48% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married48%50%46%
Never married38%40%35%
Divorced8%6%10%
Widowed5%2%7%
Separated2%2%2%

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

Sources

14 sources

Population

American Community Survey, 2024 5-year

Additional sources