Alta, CA Demographics

A map of Alta's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	569	517	86.7%	84.1%
Native American/Other	49	23	7.5%	3.7%
Hispanic	28	39	4.3%	6.3%
Multiracial	10	30	1.5%	4.9%
Black	0	1	0.0%	0.2%
Asian	0	5	0.0%	0.8%

Alta, California has an estimated population of 656, an increase from the 615 recorded in the 2020 Census. The population is 86.7% White, 7.5% Native American/Other, 4.3% Hispanic, 1.5% Multiracial, 0.0% Black, and 0.0% Asian. This demographic dot map shows the population of Alta, with one dot drawn for each person counted by the Census, color-coded by race.

Alta has become less racially diverse since the 2020 Census. It is considerably less diverse than California overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Alta, that probability was 28.5% in 2020 and 24.0% in the most recent ACS estimates.

Alta is ranked the 1164th most populous place in California, out of 1,618 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Alta was ranked the 1184th most populous place in the 2020 Census.

Alta's White Population

569 residents of Alta, or 86.7% of the population, identify as White. The share of White residents in Alta is significantly higher than in California overall, where 33.8% of the population is White. Alta ranks 107th statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Alta's White population has grown by an estimated 10.1%. White residents' share of Alta's population has increased from 84.1% to 86.7%.

Alta is more White than neighboring Dutch Flat (55.5% White), Colfax (79.5% White), and Foresthill (33.9% White). Alta is less White than neighboring Washington (100% White), and Nevada City (89.8% White).

Alta's Black Population

0 residents of Alta, or 0.0% of the population, identify as Black. The share of Black residents in Alta is lower than in California overall, where 5.2% of the population is Black. Alta ranks 1302nd statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Alta's Black population has declined by an estimated 100.0%. Black residents' share of Alta's population has remained roughly unchanged at 0.0%.

Alta is less Black than neighboring Nevada City (0.3% Black).

Alta's Asian Population

0 residents of Alta, or 0.0% of the population, identify as Asian. The share of Asian residents in Alta is significantly lower than in California overall, where 15.3% of the population is Asian. Alta ranks 1200th statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Alta's Asian population has declined by an estimated 100.0%. Asian residents' share of Alta's population has decreased from 0.8% to 0.0%.

Alta is less Asian than neighboring Colfax (1.5% Asian), and Nevada City (0.9% Asian).

Alta's Hispanic Population

28 residents of Alta, or 4.3% of the population, identify as Hispanic. The share of Hispanic residents in Alta is significantly lower than in California overall, where 40.2% of the population is Hispanic. Alta ranks 1489th statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Alta's Hispanic population has declined by an estimated 28.2%. Hispanic residents' share of Alta's population has decreased from 6.3% to 4.3%.

Alta is more Hispanic than neighboring Washington (0% Hispanic), and Nevada City (2.7% Hispanic). Alta is less Hispanic than neighboring Dutch Flat (39.5% Hispanic), Colfax (10.1% Hispanic), and Foresthill (50.2% Hispanic).

Alta's Native American/Other Population

49 residents of Alta, or 7.5% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Alta is higher than in California overall, where 1.2% of the population is Native American/Other. Alta ranks 171st statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Alta's Native American/Other population has grown by an estimated 113.0%. Native American/Other residents' share of Alta's population has increased from 3.7% to 7.5%.

Alta is more Native American/Other than neighboring Dutch Flat (0% Native American/Other), Washington (0% Native American/Other), Colfax (0% Native American/Other), Foresthill (3.1% Native American/Other), and Nevada City (0% Native American/Other).

Alta's Multiracial Population

10 residents of Alta, or 1.5% of the population, identify as Multiracial. The share of Multiracial residents in Alta is slightly lower than in California overall, where 4.4% of the population is Multiracial. Alta ranks 751st statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Alta's Multiracial population has declined by an estimated 66.7%. Multiracial residents' share of Alta's population has decreased from 4.9% to 1.5%.

Alta is more Multiracial than neighboring Washington (0% Multiracial). Alta is less Multiracial than neighboring Dutch Flat (5% Multiracial), Colfax (8.9% Multiracial), Foresthill (12.7% Multiracial), and Nevada City (6.4% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.