Chicago metropolitan area
metropolitan area in the United States

The Chicago metropolitan area, also known as Chicagoland, is the largest metropolitan area in the U.S. state of Illinois and in the Midwest. The metropolitan area contains the City of Chicago along with its surrounding suburbs, satellite cities, and hinterland, spanning 13 counties across northeast Illinois and northwest Indiana. The MSA had a 2020 census population of 9,618,502, and the combined statistical area, which spans 19 counties, had a population of nearly 10 million. The Chicago area is the third-largest metropolitan area in the United States, the fourth-largest in North America (after Mexico City, New York City, and Los Angeles), and the largest in the Great Lakes megalopolis. Its urban area is the 50th-largest in the world.
According to the 2020 census, Chicagoland's population is approaching 10 million. In recent decades, the metropolitan area has seen a substantial increase of Latin American residents on top of its already large Latino population, and the Asian American population also increased. The metro area has a large number of White, Black, Latino, Asian, and Arab American residents, and also has Native American residents. The Chicago metropolitan area has about 3 percent of the U.S. population.
Chicagoland has one of the world's largest and most diversified economies.
Begin with the source’s own compact description: “Chicago metropolitan area” is metropolitan area in the United States. The dossier treats that line as a proposition to test through Chicago, metropolitan and area, not as a finished interpretation.
Why this record matters
The phrase “metropolitan area in the United States” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 16, 2026. The linked authority identifier is Q1754965. VIAF identifies the subject as 315530624. The Library of Congress control number is sh2009008684. Authority coordinates are 41.900, -87.650. 2 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2020.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Chicago metropolitan area”, its source revision and the description used here.
- Expand the search: follow Chicago metropolitan area primary sources, Chicago metropolitan area archive and Chicago research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Chicago metropolitan area”?
- What terminology or title could unlock a more precise catalogue search?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “Chicago metropolitan area” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.