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Research dossier · Places & Architecture

Peoria, Illinois

City in Illinois, United States

Architectural plans, a scale model, maps and brass measuring instruments
Places and architectureInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 28, 2026
Entity authoritySource title only
Source-derived summary

Peoria is a city in Peoria County, Illinois, United States, and its county seat. Located on the Illinois River, the city had a population of 113,150 as of the 2020 census, making it the eighth-most populous city in Illinois. It is the principal city of the Peoria metropolitan area in Central Illinois, consisting of Fulton, Marshall, Peoria, Stark, Tazewell, and Woodford counties and had a combined population of 402,391 in 2020.

Editorial summary

This brief starts where responsible research should: with the source description of “Peoria, Illinois” as city in Illinois, United States. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA strong orientation record where physical form, institutional use and historical geography need to be read together. The current lead gives the account dated anchors—2020—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Peoria, Illinois and City can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the places & architecture register because the source frames it as city in Illinois, United States. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Aug 28, 2026. The first chronological checks are 2020.

Critical limits

A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. 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

Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.

Best used for
  • Historic place names
  • Jurisdictional context
  • Routes into maps and plans
Verify next

Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.

Three-step research path

  1. Establish the record: confirm the title “Peoria, Illinois”, its source revision and the description used here.
  2. Expand the search: follow Peoria, Illinois primary sources, Peoria, Illinois archive and Peoria research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Peoria, Illinois”?
  2. Which earlier names or jurisdictions may reveal additional records?
  3. Which authority defined the place, boundary or structure at the relevant date?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Peoria, Illinois” 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.