Alta, IA Demographics

A map of Alta's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	1,260	1,446	56.0%	69.3%
Hispanic	369	485	16.4%	23.2%
Asian	301	23	13.4%	1.1%
Black	194	33	8.6%	1.6%
Native American/Other	93	68	4.1%	3.3%
Multiracial	33	32	1.5%	1.5%

Alta, Iowa has an estimated population of 2,250, an increase from the 2,087 recorded in the 2020 Census. The population is 56.0% White, 16.4% Hispanic, 13.4% Asian, 8.6% Black, 4.1% Native American/Other, and 1.5% Multiracial. 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 considerably more racially diverse since the 2020 Census. It is considerably more diverse than Iowa 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 46.4% in 2020 and 63.2% in the most recent ACS estimates.

Alta is ranked the 153rd most populous place in Iowa, out of 1,026 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 157th most populous place in the 2020 Census.

Alta's White Population

1,260 residents of Alta, or 56.0% of the population, identify as White. The share of White residents in Alta is significantly lower than in Iowa overall, where 82.3% of the population is White. Alta ranks 1000th statewide in terms of White residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Alta's White population has declined by an estimated 12.9%. White residents' share of Alta's population has decreased from 69.3% to 56.0%.

Alta is more White than neighboring Storm Lake (33.1% White), Truesdale (29.9% White), and Lakeside (44.2% White). Alta is less White than neighboring Aurelia (96% White), and Schaller (68.9% White).

Alta's Black Population

194 residents of Alta, or 8.6% of the population, identify as Black. The share of Black residents in Alta is slightly higher than in Iowa overall, where 3.8% of the population is Black. Alta ranks 125th statewide in terms of Black residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Alta's Black population has grown by an estimated 487.9%. Black residents' share of Alta's population has increased from 1.6% to 8.6%.

Alta is more Black than neighboring Storm Lake (3.8% Black), Truesdale (0% Black), Lakeside (0% Black), Aurelia (0% Black), and Schaller (0% Black).

Alta's Asian Population

301 residents of Alta, or 13.4% of the population, identify as Asian. The share of Asian residents in Alta is considerably higher than in Iowa overall, where 2.5% of the population is Asian. Alta ranks 121st statewide in terms of Asian residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Alta's Asian population has grown by an estimated 1208.7%. Asian residents' share of Alta's population has increased from 1.1% to 13.4%.

Alta is more Asian than neighboring Storm Lake (12.7% Asian), Lakeside (1.4% Asian), Aurelia (0.2% Asian), and Schaller (0% Asian). Alta is less Asian than neighboring Truesdale (68.4% Asian).

Alta's Hispanic Population

369 residents of Alta, or 16.4% of the population, identify as Hispanic. The share of Hispanic residents in Alta is higher than in Iowa overall, where 7.3% of the population is Hispanic. Alta ranks 26th statewide in terms of Hispanic residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Alta's Hispanic population has declined by an estimated 23.9%. Hispanic residents' share of Alta's population has decreased from 23.2% to 16.4%.

Alta is more Hispanic than neighboring Truesdale (0% Hispanic), and Aurelia (3.4% Hispanic). Alta is less Hispanic than neighboring Storm Lake (43.5% Hispanic), Lakeside (51.7% Hispanic), and Schaller (25.9% Hispanic).

Alta's Native American/Other Population

93 residents of Alta, or 4.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Alta is slightly higher than in Iowa overall, where 0.6% of the population is Native American/Other. Alta ranks 23rd statewide in terms of Native American/Other residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Alta's Native American/Other population has grown by an estimated 36.8%. Native American/Other residents' share of Alta's population has increased from 3.3% to 4.1%.

Alta is more Native American/Other than neighboring Truesdale (0% Native American/Other), Lakeside (2.5% Native American/Other), and Aurelia (0.4% Native American/Other). Alta is less Native American/Other than neighboring Storm Lake (4.8% Native American/Other), and Schaller (5.2% Native American/Other).

Alta's Multiracial Population

33 residents of Alta, or 1.5% of the population, identify as Multiracial. The share of Multiracial residents in Alta is comparable to the share in Iowa overall, where 3.5% of the population is Multiracial. Alta ranks 805th statewide in terms of Multiracial residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Alta's Multiracial population has grown by an estimated 3.1%. Multiracial residents' share of Alta's population has remained roughly unchanged at 1.5%.

Alta is more Multiracial than neighboring Lakeside (0.2% Multiracial), Aurelia (0% Multiracial), and Schaller (0% Multiracial). Alta is less Multiracial than neighboring Storm Lake (2.1% Multiracial), and Truesdale (1.6% 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.