Demographics of Belmont city, California

Belmont city, California had 28,752 people on July 1, 2025, by the Census Bureau’s estimate: +491 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Belmont city, in four figures

28,752
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 27,337 ±45.; +1.7%
Change since July 2020: +491 people.; 39.8 ±1.2
Median age: ACS 2020–⁠2024.; $205,297 ±$18,232
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.

Belmont city, California's population grew 1.7% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Belmont 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

Belmont city, California's population grew 1.7% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Belmont 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	28,261	100.0	100.0
2021	27,346	96.8	100.2
2022	26,955	95.4	100.7
2023	26,913	95.2	101.6
2024	27,614	97.7	102.5
2025	28,752	101.7	103.1

Population of Belmont city, California on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	28,261	—
2021	27,346	−915
2022	26,955	−391
2023	26,913	−42
2024	27,614	+701
2025	28,752	+1,138

Age, 2020–2024

The median age is 39.8 ±1.2: for men 39.5 ±1.4 and for women 40.1 ±1.4. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Belmont city by age, ACS 2020–2024
Age	People	Share	California	United States
Under 5	1,448 ±306	5.3% ±1.1	5.5% ±<0.1	5.6% ±<0.1
5 to 17	5,018 ±602	18.4% ±2.2	16.5% ±<0.1	16.3% ±<0.1
18 to 24	1,626 ±347	5.9% ±1.3	9.1% ±<0.1	9.1% ±<0.1
25 to 44	7,969 ±714	29.2% ±2.6	28.7% ±<0.1	26.9% ±<0.1
45 to 64	7,463 ±666	27.3% ±2.4	24.6% ±<0.1	24.8% ±<0.1
65 and over	3,813 ±449	13.9% ±1.6	15.7% ±<0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $205,297 ±$18,232, and income per person $101,385 ±$5,679, 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 Belmont city by income, ACS 2020–2024
Household income	Households	Share	California	United States
Under $25,000	946 ±352	9.0% ±3.3	12.5% ±0.1	14.6% ±<0.1
$25,000 to $49,999	652 ±203	6.2% ±1.9	13.3% ±0.1	16.7% ±<0.1
$50,000 to $74,999	579 ±153	5.5% ±1.4	13.0% ±0.1	15.5% ±<0.1
$75,000 to $99,999	491 ±149	4.7% ±1.4	11.6% ±0.1	12.6% ±<0.1
$100,000 to $149,999	1,264 ±255	12.0% ±2.4	17.8% ±0.1	17.5% ±<0.1
$150,000 to $199,999	1,198 ±222	11.4% ±2.1	11.3% ±0.1	9.6% ±<0.1
$200,000 or more	5,370 ±384	51.1% ±3.4	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 Belmont city by age, ACS 2020–2024
Age	Below poverty	Rate	California	United States
All ages	1,861 ±643	6.9% ±2.4	12.0% ±0.1	12.5% ±0.1
Under 18	22 to 650	0.4% to 10.0%	15.0% ±0.1	16.1% ±0.1
18 to 59	1,101 ±414	7.2% ±2.7	11.0% ±0.1	11.6% ±0.1
60 and over	424 ±169	8.4% ±3.2	11.5% ±0.1	11.0% ±<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%.

Housing, 2020–2024

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Housing in Belmont city, ACS 2020–2024
Measure	Belmont city	California	United States
Housing units	11,346 ±296	14,644,735 ±1,665	143,775,355 ±10,234
Occupied	92.5% ±1.0	92.5% ±0.1	89.9% ±0.1
Vacant	7.5% ±1.9	7.5% ±0.1	10.1% ±0.1
Owner occupied	54.8% ±3.5	55.9% ±0.3	65.2% ±0.3
Renter occupied	45.2% ±3.6	44.1% ±0.2	34.8% ±0.1
Median home value	At the edge of the top or bottom interval	$734,700 ±$1,307	$332,700 ±$236
Median gross rent	$2,875 ±$108	$2,036 ±$5	$1,413 ±$2
Median year built	1966 ±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 Belmont city by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	California	United States
Hispanic or Latino	3,578 ±727	13.1% ±2.7	40.2% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	12,517 ±855	45.8% ±3.1	33.8% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	253 to 757	0.9% to 2.8%	5.2% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	8,375 ±878	30.6% ±3.2	15.3% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 193	0% to 0.7%	0.3% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 4	0% to < 0.1%	0.3% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	124 to 574	0.5% to 2.1%	0.6% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	1,939 ±386	7.1% ±1.4	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 Belmont city by place of birth and citizenship, ACS 2020–2024
Born	People	Share	California	United States
Born in the state	13,672 ±803	50.0% ±2.9	56.5% ±0.1	57.3% ±<0.1
Born in another state	4,886 ±511	17.9% ±1.9	15.0% ±0.1	26.9% ±<0.1
Born a citizen outside the states	377 ±160	1.4% ±0.6	1.5% ±<0.1	1.7% ±<0.1
Born abroad	8,402 ±760	30.7% ±2.8	27.0% ±0.1	14.1% ±<0.1
Naturalized citizens	4,822 ±617	17.6% ±2.3	14.7% ±0.1	7.4% ±<0.1
Not citizens	3,580 ±627	13.1% ±2.3	12.3% ±0.1	6.8% ±<0.1

Belmont city among the places of California

282nd 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 Belmont city in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Eastern Goleta Valley CDP	28,295 ±1,514
Ridgecrest city	28,225 ±62
Lemon Grove city	27,686 ±39
Walnut city	27,611 ±45
Twentynine Palms city	27,355 ±56
Belmont city	27,337 ±45
Brawley city	27,283 ±33
Lemoore city	27,102 ±48
Benicia city	26,749 ±59
Sanger city	26,699 ±26
Wasco city	26,558 ±34

Elsewhere on the site

Reported crime in Belmont city, California

Rankings this appears in

No. 3 Places in California by median household income
No. 11 Places by median household income
No. 14 Places in California by median rent
No. 28 Places in California by per capita income
No. 36 Places by median rent
No. 71 Places by per capita income

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