St. John, MO Demographics

A map of St. John's Population by Race

St. John, Missouri has an estimated population of 6,527, a slight decrease from the 6,643 recorded in the 2020 Census. The population is 48.1% White, 36.2% Black, 12.1% Hispanic, 3.0% Multiracial, 0.4% Asian, and 0.2% Native American/Other. This demographic dot map shows the population of St. John, with one dot drawn for each person counted by the Census, color-coded by race.

St. John has become less racially diverse since the 2020 Census. It is considerably more 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 St. John, that probability was 64.4% in 2020 and 62.2% in the most recent ACS estimates.

St. John is ranked the 119th 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). St. John was ranked the 119th most populous place in the 2020 Census.

St. John's White Population

3,137 residents of St. John, or 48.1% of the population, identify as White. The share of White residents in St. John is significantly lower than in Missouri overall, where 76.3% of the population is White. St. John ranks 1016th statewide in terms of White residents as a share of the population, out of 1,082 places.

Since the 2020 Census, St. John's White population has declined by an estimated 3.9%. White residents' share of St. John's population has decreased from 49.2% to 48.1%.

St. John is more White than neighboring Bel-Ridge (13% White), Woodson Terrace (45.2% White), and Breckenridge Hills (46.7% White). St. John is less White than neighboring Charlack (51.1% White), and Sycamore Hills (55.8% White).

St. John's Black Population

2,366 residents of St. John, or 36.2% of the population, identify as Black. The share of Black residents in St. John is significantly higher than in Missouri overall, where 10.9% of the population is Black. St. John ranks 61st statewide in terms of Black residents as a share of the population, out of 1,082 places.

Since the 2020 Census, St. John's Black population has grown by an estimated 13.2%. Black residents' share of St. John's population has increased from 31.5% to 36.2%.

St. John is more Black than neighboring Charlack (24.8% Black), Sycamore Hills (32.6% Black), Woodson Terrace (23.7% Black), and Breckenridge Hills (18.3% Black). St. John is less Black than neighboring Bel-Ridge (76.7% Black).

St. John's Asian Population

24 residents of St. John, or 0.4% of the population, identify as Asian. The share of Asian residents in St. John is comparable to the share in Missouri overall, where 2.1% of the population is Asian. St. John ranks 105th statewide in terms of Asian residents as a share of the population, out of 1,082 places.

Since the 2020 Census, St. John's Asian population has declined by an estimated 80.6%. Asian residents' share of St. John's population has decreased from 1.9% to 0.4%.

St. John is more Asian than neighboring Charlack (0.3% Asian), Bel-Ridge (0% Asian), and Woodson Terrace (0% Asian). St. John is less Asian than neighboring Sycamore Hills (2.5% Asian), and Breckenridge Hills (5.3% Asian).

St. John's Hispanic Population

792 residents of St. John, or 12.1% of the population, identify as Hispanic. The share of Hispanic residents in St. John is higher than in Missouri overall, where 5.2% of the population is Hispanic. St. John ranks 49th statewide in terms of Hispanic residents as a share of the population, out of 1,082 places.

Since the 2020 Census, St. John's Hispanic population has grown by an estimated 11.2%. Hispanic residents' share of St. John's population has increased from 10.7% to 12.1%.

St. John is more Hispanic than neighboring Charlack (6.5% Hispanic), Sycamore Hills (0.9% Hispanic), and Bel-Ridge (2.4% Hispanic). St. John is less Hispanic than neighboring Woodson Terrace (20.3% Hispanic), and Breckenridge Hills (22% Hispanic).

St. John's Native American/Other Population

13 residents of St. John, or 0.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in St. John is comparable to the share in Missouri overall, where 0.7% of the population is Native American/Other. St. John ranks 436th statewide in terms of Native American/Other residents as a share of the population, out of 1,082 places.

Since the 2020 Census, St. John's Native American/Other population has declined by an estimated 74.5%. Native American/Other residents' share of St. John's population has decreased from 0.8% to 0.2%.

St. John is more Native American/Other than neighboring Bel-Ridge (0% Native American/Other), Woodson Terrace (0.1% Native American/Other), and Breckenridge Hills (0% Native American/Other). St. John is less Native American/Other than neighboring Charlack (0.3% Native American/Other), and Sycamore Hills (0.7% Native American/Other).

St. John's Multiracial Population

195 residents of St. John, or 3.0% of the population, identify as Multiracial. The share of Multiracial residents in St. John is comparable to the share in Missouri overall, where 4.8% of the population is Multiracial. St. John ranks 305th statewide in terms of Multiracial residents as a share of the population, out of 1,082 places.

Since the 2020 Census, St. John's Multiracial population has declined by an estimated 51.2%. Multiracial residents' share of St. John's population has decreased from 6.0% to 3.0%.

St. John is less Multiracial than neighboring Charlack (17% Multiracial), Sycamore Hills (7.4% Multiracial), Bel-Ridge (7.8% Multiracial), Woodson Terrace (10.7% Multiracial), and Breckenridge Hills (7.6% 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.