Demographics of Alpine County, California

Alpine County, California had 1,043 people on July 1, 2025, by the Census Bureau’s estimate: −137 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Alpine County, in four figures

1,043
Population: July 1, 2025, Vintage 2025 estimate.; −11.6%
Change since July 2020: −137 people.; 39.8 ±3.7
Median age: ACS 2020–⁠2024.; $105,521 ±$8,542
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Alpine County, California's population shrank 11.6% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Alpine County, 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).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Alpine County, California's population shrank 11.6% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Alpine County, 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	1,180	100.0	100.0
2021	1,194	101.2	100.2
2022	1,149	97.4	100.7
2023	1,105	93.6	101.6
2024	1,086	92.0	102.5
2025	1,043	88.4	103.1

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Population of Alpine County, California on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	1,180	+2	−1	0	+3
2021	1,194	+14	−29	0	+48
2022	1,149	−45	−11	+1	−35
2023	1,105	−44	−11	+2	−37
2024	1,086	−19	−11	+5	−14
2025	1,043	−43	−11	+1	−33

Age, 2020–2024

The median age is 39.8 ±3.7: for men 40.0 ±4.0 and for women 39.0 ±7.8. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Alpine County by age, ACS 2020–2024
Age	People	Share	California	United States
Under 5	68 ±31	4.2% ±1.8	5.5% ±<0.1	5.6% ±<0.1
5 to 17	253 ±73	15.7% ±3.9	16.5% ±<0.1	16.3% ±<0.1
18 to 24	85 to 281	5.5% to 17.1%	9.1% ±<0.1	9.1% ±<0.1
25 to 44	396 ±115	24.5% ±6.1	28.7% ±<0.1	26.9% ±<0.1
45 to 64	375 ±102	23.2% ±5.3	24.6% ±<0.1	24.8% ±<0.1
65 and over	341 ±76	21.1% ±3.5	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 $105,521 ±$8,542, and income per person $49,426 ±$12,953, 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 Alpine County by income, ACS 2020–2024
Household income	Households	Share	California	United States
Under $25,000	52 ±22	12.0% ±4.7	12.5% ±0.1	14.6% ±<0.1
$25,000 to $49,999	28 to 104	6.8% to 23.5%	13.3% ±0.1	16.7% ±<0.1
$50,000 to $74,999	28 to 84	12.9% ±6.1	13.0% ±0.1	15.5% ±<0.1
$75,000 to $99,999	6 to 34	1.5% to 7.7%	11.6% ±0.1	12.6% ±<0.1
$100,000 to $149,999	86 ±42	19.8% ±9.1	17.8% ±0.1	17.5% ±<0.1
$150,000 to $199,999	79 ±35	18.2% ±7.4	11.3% ±0.1	9.6% ±<0.1
$200,000 or more	76 ±34	17.5% ±7.2	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 Alpine County by age, ACS 2020–2024
Age	Below poverty	Rate	California	United States
All ages	161 ±53	10.0% ±2.9	12.0% ±0.1	12.5% ±0.1
Under 18	45 ±21	14.0% ±5.5	15.0% ±0.1	16.1% ±0.1
18 to 59	90 ±34	10.5% ±3.2	11.0% ±0.1	11.6% ±0.1
60 and over	5 to 47	1.4% to 10.5%	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 Alpine County, ACS 2020–2024
Measure	Alpine County	California	United States
Housing units	1,558 ±100	14,644,735 ±1,665	143,775,355 ±10,234
Occupied	27.9% ±4.4	92.5% ±0.1	89.9% ±0.1
Vacant	72.1% ±4.1	7.5% ±0.1	10.1% ±0.1
Owner occupied	78.2% ±7.3	55.9% ±0.3	65.2% ±0.3
Renter occupied	21.8% ±9.4	44.1% ±0.2	34.8% ±0.1
Median home value	$590,200 ±$75,193	$734,700 ±$1,307	$332,700 ±$236
Median gross rent	Not computed by the Bureau	$2,036 ±$5	$1,413 ±$2
Median year built	1981 ±3	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 Alpine County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	California	United States
Hispanic or Latino	216 ±101	13.4% ±5.9	40.2% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	923 ±224	57.1% ±11.0	33.8% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	0 to 14	0% to 0.9%	5.2% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	2 to 70	0.1% to 4.3%	15.3% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	405 ±33	25.1% ±4.2	0.3% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 14	0% to 0.9%	0.3% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 27	0% to 1.7%	0.6% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	1 to 45	0.1% to 2.8%	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 Alpine County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	California	United States
Born in the state	774 ±206	47.9% ±10.6	56.5% ±0.1	57.3% ±<0.1
Born in another state	747 ±149	46.2% ±6.2	15.0% ±0.1	26.9% ±<0.1
Born a citizen outside the states	0 to 17	0% to 1.0%	1.5% ±<0.1	1.7% ±<0.1
Born abroad	28 to 146	1.8% to 8.9%	27.0% ±0.1	14.1% ±<0.1
Naturalized citizens	29 to 109	1.9% to 6.7%	14.7% ±0.1	7.4% ±<0.1
Not citizens	0 to 66	0% to 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%.

Alpine County among the counties of California

58th of 58 by population, July 2025. Every one is listed on the California page.

Counties of California near Alpine County in population, July 2025
County	July 2025	Change since 2020
Mariposa County	16,918	−1.2%
Trinity County	15,720	−2.4%
Mono County	12,505	−5.4%
Modoc County	8,426	−2.9%
Sierra County	3,098	−4.0%
Alpine County	1,043	−11.6%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — 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

Data retrieved September 25, 2026