Irwin, MO Demographics

A map of Irwin's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	43	43	100.0%	91.5%
Black	0	0	0.0%	0.0%
Asian	0	0	0.0%	0.0%
Hispanic	0	1	0.0%	2.1%
Native American/Other	0	0	0.0%	0.0%
Multiracial	0	3	0.0%	6.4%

Irwin, Missouri has an estimated population of 43, a decrease from the 47 recorded in the 2020 Census. The population is 100.0% White, 0.0% Black, 0.0% Asian, 0.0% Hispanic, 0.0% Native American/Other, and 0.0% Multiracial. This demographic dot map shows the population of Irwin, with one dot drawn for each person counted by the Census, color-coded by race.

Irwin has become considerably less racially diverse since the 2020 Census. It is considerably less diverse than Missouri overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Irwin, that probability was 15.8% in 2020 and 0.0% in the most recent ACS estimates.

Irwin is ranked the 992nd most populous place in Missouri, out of 1,082 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). Irwin was ranked the 1003rd most populous place in the 2020 Census.

Irwin's White Population

43 residents of Irwin, or 100.0% of the population, identify as White. The share of White residents in Irwin is significantly higher than in Missouri overall, where 76.3% of the population is White. Irwin ranks 376th statewide in terms of White residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Irwin's White population has remained roughly the same. White residents' share of Irwin's population has increased from 91.5% to 100.0%.

Irwin is more White than neighboring Sheldon (90.7% White), Lamar (92.1% White), Lamar Heights (87.4% White), and Milford (81.5% White).

Irwin's Black Population

0 residents of Irwin, or 0.0% of the population, identify as Black. The share of Black residents in Irwin is considerably lower than in Missouri overall, where 10.9% of the population is Black. Irwin ranks 725th statewide in terms of Black residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Irwin's Black population has grown from 0 to an estimated 0. Black residents' share of Irwin's population has remained roughly unchanged at 0.0%.

Irwin is less Black than neighboring Lamar (0.6% Black).

Irwin's Asian Population

0 residents of Irwin, or 0.0% of the population, identify as Asian. The share of Asian residents in Irwin is slightly lower than in Missouri overall, where 2.1% of the population is Asian. Irwin ranks 615th statewide in terms of Asian residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Irwin's Asian population has grown from 0 to an estimated 0. Asian residents' share of Irwin's population has remained roughly unchanged at 0.0%.

Irwin's Hispanic Population

0 residents of Irwin, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Irwin is lower than in Missouri overall, where 5.2% of the population is Hispanic. Irwin ranks 594th statewide in terms of Hispanic residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Irwin's Hispanic population has declined by an estimated 100.0%. Hispanic residents' share of Irwin's population has decreased from 2.1% to 0.0%.

Irwin is less Hispanic than neighboring Sheldon (5.4% Hispanic), and Lamar (1.1% Hispanic).

Irwin's Native American/Other Population

0 residents of Irwin, 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 Irwin is comparable to the share in Missouri overall, where 0.7% of the population is Native American/Other. Irwin ranks 807th statewide in terms of Native American/Other residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Irwin's Native American/Other population has grown from 0 to an estimated 0. Native American/Other residents' share of Irwin's population has remained roughly unchanged at 0.0%.

Irwin is less Native American/Other than neighboring Sheldon (0.5% Native American/Other), Lamar (0.8% Native American/Other), and Lamar Heights (2.7% Native American/Other).

Irwin's Multiracial Population

0 residents of Irwin, or 0.0% of the population, identify as Multiracial. The share of Multiracial residents in Irwin is slightly lower than in Missouri overall, where 4.8% of the population is Multiracial. Irwin ranks 259th statewide in terms of Multiracial residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Irwin's Multiracial population has declined by an estimated 100.0%. Multiracial residents' share of Irwin's population has decreased from 6.4% to 0.0%.

Irwin is less Multiracial than neighboring Sheldon (3.4% Multiracial), Lamar (5.3% Multiracial), Lamar Heights (9.9% Multiracial), and Milford (18.5% 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.