Armstrong, IA Demographics

A map of Armstrong's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	672	849	95.6%	97.0%
Multiracial	17	13	2.4%	1.5%
Black	8	0	1.1%	0.0%
Hispanic	5	8	0.7%	0.9%
Asian	1	2	0.1%	0.2%
Native American/Other	0	3	0.0%	0.3%

Armstrong, Iowa has an estimated population of 703, a large decrease from the 875 recorded in the 2020 Census. The population is 95.6% White, 2.4% Multiracial, 1.1% Black, 0.7% Hispanic, 0.1% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of Armstrong, with one dot drawn for each person counted by the Census, color-coded by race.

Armstrong has become 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 Armstrong, that probability was 5.8% in 2020 and 8.6% in the most recent ACS estimates.

Armstrong is ranked the 391st 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). Armstrong was ranked the 319th most populous place in the 2020 Census.

Armstrong's White Population

672 residents of Armstrong, or 95.6% of the population, identify as White. The share of White residents in Armstrong is considerably higher than in Iowa overall, where 82.3% of the population is White. Armstrong ranks 99th statewide in terms of White residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Armstrong's White population has declined by an estimated 20.8%. White residents' share of Armstrong's population has decreased from 97.0% to 95.6%.

Armstrong is more White than neighboring Ringsted (94.2% White), Dolliver (62.7% White), Swea City (84.6% White), Fenton (94.1% White), and Ceylon (83% White).

Armstrong's Black Population

8 residents of Armstrong, or 1.1% of the population, identify as Black. The share of Black residents in Armstrong is slightly lower than in Iowa overall, where 3.8% of the population is Black. Armstrong ranks 600th statewide in terms of Black residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Armstrong's Black population has grown from 0 to an estimated 8. Black residents' share of Armstrong's population has increased from 0.0% to 1.1%.

Armstrong is more Black than neighboring Ringsted (0.5% Black), Dolliver (0% Black), and Ceylon (0% Black). Armstrong is less Black than neighboring Swea City (9.3% Black), and Fenton (4.5% Black).

Armstrong's Asian Population

1 residents of Armstrong, or 0.1% of the population, identify as Asian. The share of Asian residents in Armstrong is slightly lower than in Iowa overall, where 2.5% of the population is Asian. Armstrong ranks 454th statewide in terms of Asian residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Armstrong's Asian population has declined by an estimated 50.0%. Asian residents' share of Armstrong's population has remained roughly unchanged at 0.1%.

Armstrong is more Asian than neighboring Ringsted (0% Asian), Dolliver (0% Asian), Swea City (0% Asian), Fenton (0% Asian), and Ceylon (0% Asian).

Armstrong's Hispanic Population

5 residents of Armstrong, or 0.7% of the population, identify as Hispanic. The share of Hispanic residents in Armstrong is lower than in Iowa overall, where 7.3% of the population is Hispanic. Armstrong ranks 847th statewide in terms of Hispanic residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Armstrong's Hispanic population has declined by an estimated 37.5%. Hispanic residents' share of Armstrong's population has remained roughly unchanged at 0.7%.

Armstrong is less Hispanic than neighboring Ringsted (0.8% Hispanic), Dolliver (37.3% Hispanic), Swea City (1.7% Hispanic), Fenton (1% Hispanic), and Ceylon (15.4% Hispanic).

Armstrong's Native American/Other Population

0 residents of Armstrong, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Armstrong is comparable to the share in Iowa overall, where 0.6% of the population is Native American/Other. Armstrong ranks 458th statewide in terms of Native American/Other residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Armstrong's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Armstrong's population has remained roughly unchanged at 0.0%.

Armstrong is less Native American/Other than neighboring Swea City (2.4% Native American/Other).

Armstrong's Multiracial Population

17 residents of Armstrong, or 2.4% of the population, identify as Multiracial. The share of Multiracial residents in Armstrong is comparable to the share in Iowa overall, where 3.5% of the population is Multiracial. Armstrong ranks 818th statewide in terms of Multiracial residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Armstrong's Multiracial population has grown by an estimated 30.8%. Multiracial residents' share of Armstrong's population has increased from 1.5% to 2.4%.

Armstrong is more Multiracial than neighboring Dolliver (0% Multiracial), Swea City (2% Multiracial), Fenton (0.3% Multiracial), and Ceylon (1.5% Multiracial). Armstrong is less Multiracial than neighboring Ringsted (4.5% 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.