Metro Plates
Black St. Louis: Concentration and Share
In St. Louis, concentration is the metro question in its purest form: how much of a place is Black, and how that share compares with the state and the nation around it. In the St. Louis metro, Black residents number about 140,000 and form 46% of the population on the alone-or-in-combination count — against 11% for the state as a whole on the alone count, and 13.5% for the United States.
The Share and What It Builds
A share is not a statistic in the abstract; at 46%, it is the composition of every school, congregation, electorate-sized gathering, and customer base in the metro. In St. Louis, shares at this level sustain institutions — media, congregations, businesses, and political organizations — that smaller shares cannot, and they shape how a metro appears in every national table this atlas publishes. The St. Louis figure also explains the metro's gravitational pull in the movement plates: concentration is itself an attraction, drawing new residents toward an established community with its institutions already built.
In St. Louis, that pattern is the plate's whole subject: the table below gives the published share and count, and the map shades the share. Louis holds about 140,000 Black residents within its independent city — Black alone or in combination, more than two in five of its 302,000 people — and more than half a million across the bi-state metropolitan area, including East St. Where the general meets the particular is the table of St. Louis; read the two together.
The distribution reads at state scale in St. Louis, where the table's rows give the published count and the share the map draws. Sumner High School, opened in 1875 as the first high school for Black students west of the Mississippi, educated generations of the region's Black professional class; Homer G. Phillips Hospital, opened in 1937, was for decades the largest Black hospital in America and trained hundreds of Black physicians and nurses; Stowe Teachers College, Antioch Baptist, and the district's businesses completed the enclave. That is what a benchmark is for in an atlas: not to rank St. Louis, but to locate it.
Reading This Plate
What separates the two definitions is the multiracial population — real, growing, and small against shares of the size recorded in St. Louis. The definitions differ by the multiracial population — a real and growing count, small against shares like St. Louis's. St. Louis's place in that ordering is its concentration signature.
For St. Louis, the pattern is not background but subject; the state's own rows, tabled below, carry it. Modern Black St. The comparison the plate invites is therefore two-sided: the national midpoint on one side, St. Louis's households on the other.
The distribution reads at state scale in St. Louis, where the table's rows give the published count and the share the map draws. The metropolitan story is suburbanization at scale. Not to rank St. Louis but to locate it — that, in an atlas, is the use of a benchmark.
A note on this plate's figures, stated once and plainly: Black residents of the St. Louis metro, alone or in combination: 140,000; Black share of the St. Louis metro population, alone or in combination: 46%; Black share of the state population, alone: 11%. In St. Louis, each figure is published by the source named below and rounded as published; the plate's map shades the Black share of the population on the same basis, so the table and the map can be read against each other without conversion.
The record behind this plate of St. Louis is published, not estimated by this atlas: U.S. Census Bureau, 2020 Census; American Community Survey; Population Estimates Program. Where the table carries a national benchmark row for St. Louis, the row is labeled with the basis it is published on — the same measure, the same basis, two geographies.
Two further figures complete the plate's account of St. Louis: Black share of the state population, alone: 11%; Black share of the United States population, alone (population estimates): 13.5%. The measures above and these together fix the population of St. Louis as this plate describes it — its size, its share, its standing nationally — and the text that surrounds them interprets them without rounding or extension beyond the source.
| Measure | Figure |
|---|---|
| Black residents of the St. Louis metro, alone or in combination | 140,000 |
| Black share of the St. Louis metro population, alone or in combination | 46% |
| Black share of the state population, alone | 11% |
| Black share of the United States population, alone (population estimates) | 13.5% |
Source: U.S. Census Bureau, 2020 Census; American Community Survey; Population Estimates Program. Method: Figures are drawn from the published federal sources named on this page, for the geography named; tile shading bands the published Black population share into the five legend classes. Counts are rounded as published by the source agency, and national benchmark rows are labeled with the basis they are published on.