Demographics of Mammoth Lakes town, California

Mammoth Lakes town, California had 6,867 people on July 1, 2025, by the Census Bureau’s estimate: −366 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Mammoth Lakes town, in four figures

6,867
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 7,214 ±14.; −5.1%
Change since July 2020: −366 people.; 41.3 ±5.3
Median age: ACS 2020–⁠2024.; $98,056 ±$24,278
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.

Mammoth Lakes town, California's population shrank 5.1% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Mammoth Lakes town, 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

Mammoth Lakes town, California's population shrank 5.1% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Mammoth Lakes town, 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	7,233	100.0	100.0
2021	7,277	100.6	100.2
2022	7,128	98.5	100.7
2023	7,175	99.2	101.6
2024	6,959	96.2	102.5
2025	6,867	94.9	103.1

Population of Mammoth Lakes town, California on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	7,233	—
2021	7,277	+44
2022	7,128	−149
2023	7,175	+47
2024	6,959	−216
2025	6,867	−92

Age, 2020–2024

The median age is 41.3 ±5.3: for men 46.4 ±6.8 and for women 40.3 ±5.1. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Mammoth Lakes town by age, ACS 2020–2024
Age	People	Share	California	United States
Under 5	185 ±83	2.6% ±1.1	5.5% ±<0.1	5.6% ±<0.1
5 to 17	985 ±347	13.7% ±4.8	16.5% ±<0.1	16.3% ±<0.1
18 to 24	54 to 346	0.8% to 4.8%	9.1% ±<0.1	9.1% ±<0.1
25 to 44	2,523 ±526	35.0% ±7.3	28.7% ±<0.1	26.9% ±<0.1
45 to 64	2,228 ±536	30.9% ±7.4	24.6% ±<0.1	24.8% ±<0.1
65 and over	1,093 ±307	15.2% ±4.3	15.7% ±<0.1	17.2% ±<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%.

Income and poverty, 2020–2024

Median household income is $98,056 ±$24,278, and income per person $61,855 ±$11,387, 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 Mammoth Lakes town by income, ACS 2020–2024
Household income	Households	Share	California	United States
Under $25,000	84 to 358	2.6% to 10.7%	12.5% ±0.1	14.6% ±<0.1
$25,000 to $49,999	193 to 715	5.9% to 21.4%	13.3% ±0.1	16.7% ±<0.1
$50,000 to $74,999	659 ±308	19.9% ±9.1	13.0% ±0.1	15.5% ±<0.1
$75,000 to $99,999	395 ±191	11.9% ±5.7	11.6% ±0.1	12.6% ±<0.1
$100,000 to $149,999	690 ±302	20.8% ±8.9	17.8% ±0.1	17.5% ±<0.1
$150,000 to $199,999	123 to 437	3.8% to 13.1%	11.3% ±0.1	9.6% ±<0.1
$200,000 or more	619 ±239	18.7% ±7.0	20.5% ±0.1	13.4% ±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%.

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 Mammoth Lakes town by age, ACS 2020–2024
Age	Below poverty	Rate	California	United States
All ages	167 to 713	2.3% to 9.9%	12.0% ±0.1	12.5% ±0.1
Under 18	0 to 33	0% to 2.8%	15.0% ±0.1	16.1% ±0.1
18 to 59	123 to 645	2.9% to 14.7%	11.0% ±0.1	11.6% ±0.1
60 and over	0 to 151	0% to 8.9%	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 Mammoth Lakes town, ACS 2020–2024
Measure	Mammoth Lakes town	California	United States
Housing units	9,649 ±348	14,644,735 ±1,665	143,775,355 ±10,234
Occupied	34.4% ±2.9	92.5% ±0.1	89.9% ±0.1
Vacant	65.6% ±3.4	7.5% ±0.1	10.1% ±0.1
Owner occupied	55.6% ±9.2	55.9% ±0.3	65.2% ±0.3
Renter occupied	44.4% ±8.0	44.1% ±0.2	34.8% ±0.1
Median home value	$866,700 ±$203,376	$734,700 ±$1,307	$332,700 ±$236
Median gross rent	$1,645 ±$208	$2,036 ±$5	$1,413 ±$2
Median year built	1980 ±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 Mammoth Lakes town by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	California	United States
Hispanic or Latino	2,100 ±434	29.1% ±6.0	40.2% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	4,463 ±433	61.9% ±6.0	33.8% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	0 to 19	0% to 0.3%	5.2% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	200 ±91	2.8% ±1.3	15.3% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 87	0% to 1.2%	0.3% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 19	0% to 0.3%	0.3% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	2 to 152	< 0.1% to 2.1%	0.6% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	336 ±146	4.7% ±2.0	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 Mammoth Lakes town by place of birth and citizenship, ACS 2020–2024
Born	People	Share	California	United States
Born in the state	4,625 ±447	64.1% ±6.2	56.5% ±0.1	57.3% ±<0.1
Born in another state	1,256 ±320	17.4% ±4.4	15.0% ±0.1	26.9% ±<0.1
Born a citizen outside the states	0 to 19	0% to 0.3%	1.5% ±<0.1	1.7% ±<0.1
Born abroad	1,333 ±372	18.5% ±5.2	27.0% ±0.1	14.1% ±<0.1
Naturalized citizens	191 to 731	2.6% to 10.1%	14.7% ±0.1	7.4% ±<0.1
Not citizens	872 ±299	12.1% ±4.1	12.3% ±0.1	6.8% ±<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%.

Mammoth Lakes town among the places of California

570th 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 Mammoth Lakes town in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Ladera Heights CDP	7,334 ±865
Gridley city	7,330 ±24
Heber CDP	7,312 ±970
Boyes Hot Springs CDP	7,247 ±1,280
Earlimart CDP	7,214 ±980
Mammoth Lakes town	7,214 ±14
Mecca CDP	7,184 ±996
Sausalito city	7,141 ±37
East Foothills CDP	7,139 ±1,022
Rancho Calaveras CDP	7,131 ±968
Oceano CDP	7,128 ±951

Rankings this appears in

No. 38 Places in California by median age
No. 84 Places in California by median home value
No. 84 Places in California by per capita income
No. 119 Places in California by median household income
No. 159 Places by median home value
No. 229 Places in California by homeownership rate

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