St. Charles, MO Demographics

A map of St. Charles's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	55,566	55,075	77.7%	78.1%
Black	5,179	5,399	7.2%	7.7%
Hispanic	4,625	3,969	6.5%	5.6%
Multiracial	3,042	3,296	4.3%	4.7%
Asian	2,708	2,293	3.8%	3.3%
Native American/Other	388	461	0.5%	0.7%

St. Charles, Missouri has an estimated population of 71,508, a slight increase from the 70,493 recorded in the 2020 Census. The population is 77.7% White, 7.2% Black, 6.5% Hispanic, 4.3% Multiracial, 3.8% Asian, and 0.5% Native American/Other. This demographic dot map shows the population of St. Charles, with one dot drawn for each person counted by the Census, color-coded by race.

St. Charles has become slightly more racially diverse since the 2020 Census. It is 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 St. Charles, that probability was 37.7% in 2020 and 38.4% in the most recent ACS estimates.

St. Charles is ranked the 8th 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. Charles was ranked the 9th most populous place in the 2020 Census.

St. Charles's White Population

55,566 residents of St. Charles, or 77.7% of the population, identify as White. The share of White residents in St. Charles is comparable to the share in Missouri overall, where 76.3% of the population is White. St. Charles ranks 916th statewide in terms of White residents as a share of the population, out of 1,082 places.

Since the 2020 Census, St. Charles's White population has remained roughly the same. White residents' share of St. Charles's population has remained roughly unchanged at 77.7%.

St. Charles is more White than neighboring Maryland Heights (56.2% White), Bridgeton (55.8% White), and Hazelwood (44.7% White). St. Charles is less White than neighboring Champ (83.3% White), and St. Peters (85% White).

St. Charles's Black Population

5,179 residents of St. Charles, or 7.2% of the population, identify as Black. The share of Black residents in St. Charles is slightly lower than in Missouri overall, where 10.9% of the population is Black. St. Charles ranks 126th statewide in terms of Black residents as a share of the population, out of 1,082 places.

Since the 2020 Census, St. Charles's Black population has declined by an estimated 4.1%. Black residents' share of St. Charles's population has decreased from 7.7% to 7.2%.

St. Charles is more Black than neighboring Champ (0% Black), and St. Peters (4.6% Black). St. Charles is less Black than neighboring Maryland Heights (13.3% Black), Bridgeton (23.7% Black), and Hazelwood (40.5% Black).

St. Charles's Asian Population

2,708 residents of St. Charles, or 3.8% of the population, identify as Asian. The share of Asian residents in St. Charles is comparable to the share in Missouri overall, where 2.1% of the population is Asian. St. Charles ranks 52nd statewide in terms of Asian residents as a share of the population, out of 1,082 places.

Since the 2020 Census, St. Charles's Asian population has grown by an estimated 18.1%. Asian residents' share of St. Charles's population has increased from 3.3% to 3.8%.

St. Charles is more Asian than neighboring Champ (0% Asian), St. Peters (2.6% Asian), Bridgeton (2.7% Asian), and Hazelwood (1.6% Asian). St. Charles is less Asian than neighboring Maryland Heights (19.6% Asian).

St. Charles's Hispanic Population

4,625 residents of St. Charles, or 6.5% of the population, identify as Hispanic. The share of Hispanic residents in St. Charles is comparable to the share in Missouri overall, where 5.2% of the population is Hispanic. St. Charles ranks 140th statewide in terms of Hispanic residents as a share of the population, out of 1,082 places.

Since the 2020 Census, St. Charles's Hispanic population has grown by an estimated 16.5%. Hispanic residents' share of St. Charles's population has increased from 5.6% to 6.5%.

St. Charles is more Hispanic than neighboring Champ (0% Hispanic), Maryland Heights (5.6% Hispanic), St. Peters (2.9% Hispanic), and Hazelwood (3.9% Hispanic). St. Charles is less Hispanic than neighboring Bridgeton (13.8% Hispanic).

St. Charles's Native American/Other Population

388 residents of St. Charles, 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. Charles is comparable to the share in Missouri overall, where 0.7% of the population is Native American/Other. St. Charles ranks 513th statewide in terms of Native American/Other residents as a share of the population, out of 1,082 places.

Since the 2020 Census, St. Charles's Native American/Other population has declined by an estimated 15.8%. Native American/Other residents' share of St. Charles's population has remained roughly unchanged at 0.5%.

St. Charles is more Native American/Other than neighboring Champ (0% Native American/Other), St. Peters (0.2% Native American/Other), Bridgeton (0.2% Native American/Other), and Hazelwood (0.3% Native American/Other). St. Charles is less Native American/Other than neighboring Maryland Heights (0.6% Native American/Other).

St. Charles's Multiracial Population

3,042 residents of St. Charles, or 4.3% of the population, identify as Multiracial. The share of Multiracial residents in St. Charles is comparable to the share in Missouri overall, where 4.8% of the population is Multiracial. St. Charles ranks 548th statewide in terms of Multiracial residents as a share of the population, out of 1,082 places.

Since the 2020 Census, St. Charles's Multiracial population has declined by an estimated 7.7%. Multiracial residents' share of St. Charles's population has remained roughly unchanged at 4.3%.

St. Charles is more Multiracial than neighboring Bridgeton (3.7% Multiracial). St. Charles is less Multiracial than neighboring Champ (16.7% Multiracial), Maryland Heights (4.6% Multiracial), St. Peters (4.6% Multiracial), and Hazelwood (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.