Keystone, IA Demographics

A map of Keystone's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	596	562	88.4%	93.8%
Multiracial	33	14	4.9%	2.3%
Native American/Other	19	7	2.8%	1.2%
Hispanic	15	12	2.2%	2.0%
Black	11	3	1.6%	0.5%
Asian	0	1	0.0%	0.2%

Keystone, Iowa has an estimated population of 674, a large increase from the 599 recorded in the 2020 Census. The population is 88.4% White, 4.9% Multiracial, 2.8% Native American/Other, 2.2% Hispanic, 1.6% Black, and 0.0% Asian. This demographic dot map shows the population of Keystone, with one dot drawn for each person counted by the Census, color-coded by race.

Keystone has become considerably more racially diverse since the 2020 Census. It is considerably less 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 Keystone, that probability was 11.9% in 2020 and 21.4% in the most recent ACS estimates.

Keystone is ranked the 401st 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). Keystone was ranked the 419th most populous place in the 2020 Census.

Keystone's White Population

596 residents of Keystone, or 88.4% of the population, identify as White. The share of White residents in Keystone is higher than in Iowa overall, where 82.3% of the population is White. Keystone ranks 419th statewide in terms of White residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Keystone's White population has grown by an estimated 6.0%. White residents' share of Keystone's population has decreased from 93.8% to 88.4%.

Keystone is less White than neighboring Luzerne (93.3% White), Van Horne (96.9% White), Elberon (92.3% White), Belle Plaine (94.1% White), and Blairstown (90.4% White).

Keystone's Black Population

11 residents of Keystone, or 1.6% of the population, identify as Black. The share of Black residents in Keystone is slightly lower than in Iowa overall, where 3.8% of the population is Black. Keystone ranks 375th statewide in terms of Black residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Keystone's Black population has grown by an estimated 266.7%. Black residents' share of Keystone's population has increased from 0.5% to 1.6%.

Keystone is more Black than neighboring Luzerne (0% Black), Van Horne (0% Black), Elberon (0% Black), Belle Plaine (0.9% Black), and Blairstown (0% Black).

Keystone's Asian Population

0 residents of Keystone, or 0.0% of the population, identify as Asian. The share of Asian residents in Keystone is slightly lower than in Iowa overall, where 2.5% of the population is Asian. Keystone ranks 488th statewide in terms of Asian residents as a share of the population, out of 1,026 places.

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

Keystone is less Asian than neighboring Blairstown (1.2% Asian).

Keystone's Hispanic Population

15 residents of Keystone, or 2.2% of the population, identify as Hispanic. The share of Hispanic residents in Keystone is lower than in Iowa overall, where 7.3% of the population is Hispanic. Keystone ranks 616th statewide in terms of Hispanic residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Keystone's Hispanic population has grown by an estimated 25.0%. Hispanic residents' share of Keystone's population has remained roughly unchanged at 2.2%.

Keystone is more Hispanic than neighboring Van Horne (1.1% Hispanic), and Elberon (0% Hispanic). Keystone is less Hispanic than neighboring Luzerne (6.7% Hispanic), Belle Plaine (3.4% Hispanic), and Blairstown (6.7% Hispanic).

Keystone's Native American/Other Population

19 residents of Keystone, or 2.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Keystone is slightly higher than in Iowa overall, where 0.6% of the population is Native American/Other. Keystone ranks 116th statewide in terms of Native American/Other residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Keystone's Native American/Other population has grown by an estimated 171.4%. Native American/Other residents' share of Keystone's population has increased from 1.2% to 2.8%.

Keystone is more Native American/Other than neighboring Luzerne (0% Native American/Other), Van Horne (0% Native American/Other), Elberon (0.7% Native American/Other), Belle Plaine (0% Native American/Other), and Blairstown (0% Native American/Other).

Keystone's Multiracial Population

33 residents of Keystone, or 4.9% of the population, identify as Multiracial. The share of Multiracial residents in Keystone is comparable to the share in Iowa overall, where 3.5% of the population is Multiracial. Keystone ranks 609th statewide in terms of Multiracial residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Keystone's Multiracial population has grown by an estimated 135.7%. Multiracial residents' share of Keystone's population has increased from 2.3% to 4.9%.

Keystone is more Multiracial than neighboring Luzerne (0% Multiracial), Van Horne (2% Multiracial), Belle Plaine (1.6% Multiracial), and Blairstown (1.7% Multiracial). Keystone is less Multiracial than neighboring Elberon (7% 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.