St. Johns, IL Demographics

A map of St. Johns's Population by Race

St. Johns, Illinois has an estimated population of 184, a large increase from the 163 recorded in the 2020 Census. The population is 76.1% White, 10.3% Multiracial, 9.2% Asian, 3.8% Hispanic, 0.5% Native American/Other, and 0.0% Black. This demographic dot map shows the population of St. Johns, with one dot drawn for each person counted by the Census, color-coded by race.

St. Johns has become considerably more racially diverse since the 2020 Census. It is considerably less diverse than Illinois overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In St. Johns, that probability was 12.9% in 2020 and 40.0% in the most recent ACS estimates.

St. Johns is ranked the 1223rd most populous place in Illinois, out of 1,461 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). St. Johns was ranked the 1243rd most populous place in the 2020 Census.

St. Johns's White Population

140 residents of St. Johns, or 76.1% of the population, identify as White. The share of White residents in St. Johns is significantly higher than in Illinois overall, where 58.1% of the population is White. St. Johns ranks 437th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, St. Johns's White population has declined by an estimated 7.9%. White residents' share of St. Johns's population has decreased from 93.3% to 76.1%.

St. Johns is more White than neighboring Pinckneyville (67.2% White). St. Johns is less White than neighboring Du Quoin (86% White), Dowell (97% White), Tamaroa (98.5% White), and Elkville (77.9% White).

St. Johns's Black Population

0 residents of St. Johns, or 0.0% of the population, identify as Black. The share of Black residents in St. Johns is considerably lower than in Illinois overall, where 13.3% of the population is Black. St. Johns ranks 507th statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, St. Johns's Black population has declined by an estimated 100.0%. Black residents' share of St. Johns's population has decreased from 1.2% to 0.0%.

St. Johns is less Black than neighboring Du Quoin (5.9% Black), Dowell (0.7% Black), Elkville (1.1% Black), and Pinckneyville (23.8% Black).

St. Johns's Asian Population

17 residents of St. Johns, or 9.2% of the population, identify as Asian. The share of Asian residents in St. Johns is slightly higher than in Illinois overall, where 5.9% of the population is Asian. St. Johns ranks 1029th statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, St. Johns's Asian population has grown from 0 to an estimated 17. Asian residents' share of St. Johns's population has increased from 0.0% to 9.2%.

St. Johns is more Asian than neighboring Du Quoin (0% Asian), Dowell (0% Asian), Tamaroa (0% Asian), Elkville (0% Asian), and Pinckneyville (1.1% Asian).

St. Johns's Hispanic Population

7 residents of St. Johns, or 3.8% of the population, identify as Hispanic. The share of Hispanic residents in St. Johns is considerably lower than in Illinois overall, where 18.8% of the population is Hispanic. St. Johns ranks 1008th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, St. Johns's Hispanic population has grown by an estimated 133.3%. Hispanic residents' share of St. Johns's population has increased from 1.8% to 3.8%.

St. Johns is more Hispanic than neighboring Du Quoin (1.8% Hispanic), Dowell (0.7% Hispanic), and Tamaroa (0.3% Hispanic). St. Johns is less Hispanic than neighboring Elkville (10.5% Hispanic), and Pinckneyville (7.3% Hispanic).

St. Johns's Native American/Other Population

1 residents of St. Johns, or 0.5% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in St. Johns is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. St. Johns ranks 353rd statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, St. Johns's Native American/Other population has remained roughly the same. Native American/Other residents' share of St. Johns's population has remained roughly unchanged at 0.5%.

St. Johns is more Native American/Other than neighboring Dowell (0% Native American/Other), Tamaroa (0% Native American/Other), and Pinckneyville (0.2% Native American/Other). St. Johns is less Native American/Other than neighboring Du Quoin (0.6% Native American/Other), and Elkville (4.8% Native American/Other).

St. Johns's Multiracial Population

19 residents of St. Johns, or 10.3% of the population, identify as Multiracial. The share of Multiracial residents in St. Johns is higher than in Illinois overall, where 3.4% of the population is Multiracial. St. Johns ranks 901st statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, St. Johns's Multiracial population has grown by an estimated 280.0%. Multiracial residents' share of St. Johns's population has increased from 3.1% to 10.3%.

St. Johns is more Multiracial than neighboring Du Quoin (5.7% Multiracial), Dowell (1.7% Multiracial), Tamaroa (1.2% Multiracial), Elkville (5.7% Multiracial), and Pinckneyville (0.5% 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.