Metro Plates
Black Chicago: Concentration and Share
In Chicago, 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 Chicago metro, Black residents number about 787,551 and form 28.7% of the population on the alone-or-in-combination count — against 14% 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 28.7%, it is the composition of every school, congregation, electorate-sized gathering, and customer base in the metro. In Chicago, 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 Chicago 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.
For Chicago, the pattern is not background but subject; the state's own rows, tabled below, carry it. The decennial census counted 787,551 Black residents in the city of Chicago — just under 29 percent of the city's population — and the metropolitan area holds about 1.6 million Black residents across its Illinois, Indiana, and Wisconsin counties. The modern data tell a two-part story: a metro population that ranks among the nation's largest, and a city population that has been declining for four decades from its peak share of nearly 40 percent. In Chicago, the comparison the plate invites is therefore two-sided: the national currents on one side, the state's arrivals and departures on the other.
The distribution reads at state scale in Chicago, where the table's rows give the published count and the share the map draws. Black Chicago is geographically concentrated to a degree unusual even among the segregated metros of the North. That is what a benchmark is for in an atlas: not to rank Chicago, 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 Chicago. The definitions differ by the multiracial population — a real and growing count, small against shares like Chicago's. Chicago's place in that ordering is its concentration signature.
For Chicago, the pattern is not background but subject; the state's own rows, tabled below, carry it. The city of Chicago's Black population peaked in the 1980 census at roughly 1.2 million, about 40 percent of the city. Every census since has recorded a decline — through the 2010s the city lost Black residents in the hundreds of thousands cumulatively — even as the national Black population grew. For Chicago, the comparison the plate invites is therefore two-sided: the national currents on one side, the state's arrivals and departures on the other.
In Chicago, that pattern is the plate's whole subject: the table below gives the published share and count, and the map shades the share. The metropolitan figure holds up better than the city's because a large share of the movement is redistribution within the region. In Chicago, held against the national currents, the state's own rows say how its movement stands.
The gazetteer pages of this atlas gather the Chicago file in one place — the metro plates, the state plates for its state, and the national plates that frame both. In Chicago, concentration is the thread that runs through all of them: it is why this metro carries the weight it does in the national distribution, and why its movements, gains and losses alike, register in the national counts when they come.
A note on this plate's figures, stated once and plainly: Black residents of the Chicago metro, alone or in combination: 787,551; Black share of the Chicago metro population, alone or in combination: 28.7%; Black share of the state population, alone: 14%. In Chicago, 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.
How this plate is read, for Chicago: begin with the map, whose shading bands the published Black share into the legend's five classes, then turn to the table, which states the measures in figures — Black residents of the Chicago metro, alone or in combination: 787,551; Black share of the Chicago metro population, alone or in combination: 28.7%. In Chicago, the two presentations are one record in two forms, and a reader who checks one against the other has the plate's whole method in hand.
| Measure | Figure |
|---|---|
| Black residents of the Chicago metro, alone or in combination | 787,551 |
| Black share of the Chicago metro population, alone or in combination | 28.7% |
| Black share of the state population, alone | 14% |
| 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.