Irwin, SC Demographics

A map of Irwin's Population by Race

Irwin, South Carolina has an estimated population of 1,919, a dramatic increase from the 1,321 recorded in the 2020 Census. The population is 48.8% White, 45.2% Black, 4.6% Multiracial, 0.9% Hispanic, 0.4% Native American/Other, and 0.0% Asian. 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 less racially diverse since the 2020 Census. It is slightly more diverse than South Carolina 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 58.9% in 2020 and 55.5% in the most recent ACS estimates.

Irwin is ranked the 204th most populous place in South Carolina, out of 475 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 238th most populous place in the 2020 Census.

Irwin's White Population

937 residents of Irwin, or 48.8% of the population, identify as White. The share of White residents in Irwin is considerably lower than in South Carolina overall, where 61.9% of the population is White. Irwin ranks 274th statewide in terms of White residents as a share of the population, out of 475 places.

Since the 2020 Census, Irwin's White population has grown by an estimated 27.8%. White residents' share of Irwin's population has decreased from 55.5% to 48.8%.

Irwin is more White than neighboring Springdale (38.2% White), Lancaster (40.3% White), and Fort Lawn (42.1% White). Irwin is less White than neighboring Elgin (96.5% White), and Great Falls (60.4% White).

Irwin's Black Population

867 residents of Irwin, or 45.2% of the population, identify as Black. The share of Black residents in Irwin is significantly higher than in South Carolina overall, where 24.6% of the population is Black. Irwin ranks 212th statewide in terms of Black residents as a share of the population, out of 475 places.

Since the 2020 Census, Irwin's Black population has grown by an estimated 118.9%. Black residents' share of Irwin's population has increased from 30.0% to 45.2%.

Irwin is more Black than neighboring Springdale (40.1% Black), Fort Lawn (41.3% Black), Elgin (1.7% Black), and Great Falls (25.4% Black). Irwin is less Black than neighboring Lancaster (45.9% 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 comparable to the share in South Carolina overall, where 1.7% of the population is Asian. Irwin ranks 359th statewide in terms of Asian residents as a share of the population, out of 475 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 is less Asian than neighboring Lancaster (0.8% Asian).

Irwin's Hispanic Population

18 residents of Irwin, or 0.9% of the population, identify as Hispanic. The share of Hispanic residents in Irwin is lower than in South Carolina overall, where 7.4% of the population is Hispanic. Irwin ranks 61st statewide in terms of Hispanic residents as a share of the population, out of 475 places.

Since the 2020 Census, Irwin's Hispanic population has declined by an estimated 87.8%. Hispanic residents' share of Irwin's population has decreased from 11.2% to 0.9%.

Irwin is more Hispanic than neighboring Elgin (0% Hispanic). Irwin is less Hispanic than neighboring Springdale (17.8% Hispanic), Lancaster (11.4% Hispanic), Fort Lawn (12.5% Hispanic), and Great Falls (5% Hispanic).

Irwin's Native American/Other Population

8 residents of Irwin, or 0.4% 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 South Carolina overall, where 0.7% of the population is Native American/Other. Irwin ranks 383rd statewide in terms of Native American/Other residents as a share of the population, out of 475 places.

Since the 2020 Census, Irwin's Native American/Other population has grown by an estimated 100.0%. Native American/Other residents' share of Irwin's population has remained roughly unchanged at 0.4%.

Irwin is more Native American/Other than neighboring Springdale (0% Native American/Other). Irwin is less Native American/Other than neighboring Lancaster (0.5% Native American/Other), Fort Lawn (1.8% Native American/Other), Elgin (1.1% Native American/Other), and Great Falls (1.2% Native American/Other).

Irwin's Multiracial Population

89 residents of Irwin, or 4.6% of the population, identify as Multiracial. The share of Multiracial residents in Irwin is comparable to the share in South Carolina overall, where 3.7% of the population is Multiracial. Irwin ranks 300th statewide in terms of Multiracial residents as a share of the population, out of 475 places.

Since the 2020 Census, Irwin's Multiracial population has grown by an estimated 122.5%. Multiracial residents' share of Irwin's population has increased from 3.0% to 4.6%.

Irwin is more Multiracial than neighboring Springdale (3.9% Multiracial), Lancaster (1.2% Multiracial), Fort Lawn (2.3% Multiracial), and Elgin (0.8% Multiracial). Irwin is less Multiracial than neighboring Great Falls (7.9% 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.