Demographics of Fullerton city, California

Fullerton city, California had 138,675 people on July 1, 2025, by the Census Bureau’s estimate: −4,789 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Fullerton city, in four figures

138,675
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 140,968 ±79.; −3.3%
Change since July 2020: −4,789 people.; 36.9 ±0.8
Median age: ACS 2020–⁠2024.; $104,286 ±$3,310
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. The Bureau publishes no births, deaths or migration for a place, so the change is the difference between one July estimate and the next.

Fullerton city, California's population shrank 3.3% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Fullerton city, California's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

Source: The Census Bureau

About this chart

The figures

Fullerton city, California's population shrank 3.3% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Fullerton city, California's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	143,464	100.0	100.0
2021	140,359	97.8	100.2
2022	140,836	98.2	100.7
2023	139,941	97.5	101.6
2024	139,612	97.3	102.5
2025	138,675	96.7	103.1

Population of Fullerton city, California on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	143,464	—
2021	140,359	−3,105
2022	140,836	+477
2023	139,941	−895
2024	139,612	−329
2025	138,675	−937

Age, 2020–2024

The median age is 36.9 ±0.8: for men 36.2 ±0.9 and for women 37.7 ±1.2. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Fullerton city by age, ACS 2020–2024
Age	People	Share	California	United States
Under 5	8,078 ±966	5.7% ±0.7	5.5% ±<0.1	5.6% ±<0.1
5 to 17	23,117 ±1,466	16.4% ±1.0	16.5% ±<0.1	16.3% ±<0.1
18 to 24	13,860 ±1,085	9.8% ±0.8	9.1% ±<0.1	9.1% ±<0.1
25 to 44	39,251 ±1,603	27.8% ±1.1	28.7% ±<0.1	26.9% ±<0.1
45 to 64	35,227 ±1,513	25.0% ±1.1	24.6% ±<0.1	24.8% ±<0.1
65 and over	21,435 ±1,106	15.2% ±0.8	15.7% ±<0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $104,286 ±$3,310, and income per person $50,180 ±$2,116, in 2024 dollars. The median is $99,122 ±$310 in California and $80,734 ±$166 in the United States.

Households by income

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Households in Fullerton city by income, ACS 2020–2024
Household income	Households	Share	California	United States
Under $25,000	5,339 ±706	11.1% ±1.5	12.5% ±0.1	14.6% ±<0.1
$25,000 to $49,999	5,790 ±667	12.0% ±1.4	13.3% ±0.1	16.7% ±<0.1
$50,000 to $74,999	6,047 ±671	12.6% ±1.4	13.0% ±0.1	15.5% ±<0.1
$75,000 to $99,999	5,754 ±641	12.0% ±1.3	11.6% ±0.1	12.6% ±<0.1
$100,000 to $149,999	8,636 ±638	17.9% ±1.3	17.8% ±0.1	17.5% ±<0.1
$150,000 to $199,999	6,136 ±704	12.8% ±1.4	11.3% ±0.1	9.6% ±<0.1
$200,000 or more	10,415 ±762	21.6% ±1.5	20.5% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Fullerton city by age, ACS 2020–2024
Age	Below poverty	Rate	California	United States
All ages	17,087 ±2,029	12.3% ±1.5	12.0% ±0.1	12.5% ±0.1
Under 18	4,772 ±991	15.5% ±3.1	15.0% ±0.1	16.1% ±0.1
18 to 59	9,737 ±990	12.4% ±1.2	11.0% ±0.1	11.6% ±0.1
60 and over	2,578 ±448	8.8% ±1.5	11.5% ±0.1	11.0% ±<0.1

Housing, 2020–2024

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Housing in Fullerton city, ACS 2020–2024
Measure	Fullerton city	California	United States
Housing units	50,344 ±858	14,644,735 ±1,665	143,775,355 ±10,234
Occupied	95.6% ±2.2	92.5% ±0.1	89.9% ±0.1
Vacant	4.4% ±0.8	7.5% ±0.1	10.1% ±0.1
Owner occupied	51.8% ±1.6	55.9% ±0.3	65.2% ±0.3
Renter occupied	48.2% ±1.6	44.1% ±0.2	34.8% ±0.1
Median home value	$902,600 ±$12,634	$734,700 ±$1,307	$332,700 ±$236
Median gross rent	$2,194 ±$37	$2,036 ±$5	$1,413 ±$2
Median year built	1969 ±2	1976 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Fullerton city by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	California	United States
Hispanic or Latino	56,779 ±2,693	40.3% ±1.9	40.2% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	41,468 ±2,410	29.4% ±1.7	33.8% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	2,511 ±606	1.8% ±0.4	5.2% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	34,646 ±2,012	24.6% ±1.4	15.3% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	48 to 230	< 0.1% to 0.2%	0.3% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	101 to 363	0.1% to 0.3%	0.3% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	577 ±280	0.4% ±0.2	0.6% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	4,616 ±724	3.3% ±0.5	4.4% ±<0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Fullerton city by place of birth and citizenship, ACS 2020–2024
Born	People	Share	California	United States
Born in the state	80,187 ±1,837	56.9% ±1.3	56.5% ±0.1	57.3% ±<0.1
Born in another state	16,964 ±1,218	12.0% ±0.9	15.0% ±0.1	26.9% ±<0.1
Born a citizen outside the states	2,453 ±556	1.7% ±0.4	1.5% ±<0.1	1.7% ±<0.1
Born abroad	41,364 ±1,925	29.3% ±1.4	27.0% ±0.1	14.1% ±<0.1
Naturalized citizens	24,037 ±1,501	17.1% ±1.1	14.7% ±0.1	7.4% ±<0.1
Not citizens	17,327 ±1,709	12.3% ±1.2	12.3% ±0.1	6.8% ±<0.1

Fullerton city among the places of California

41st of 661 places of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the California page.

Places of California near Fullerton city in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Sunnyvale city	154,236 ±68
Escondido city	149,668 ±57
Pomona city	147,943 ±74
Visalia city	143,939 ±53
Torrance city	142,130 ±39
Fullerton city	140,968 ±79
Orange city	138,266 ±77
Victorville city	137,627 ±74
Pasadena city	136,969 ±105
Santa Clara city	130,256 ±69
Simi Valley city	125,634 ±100

Elsewhere on the site

Reported crime in Fullerton city, California

Sources

Census Bureau population estimates — incorporated places and New England towns — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Compiled automatically from Census Bureau population estimates — incorporated places and New England towns and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026