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About Peru

City in Illinois, United States
1838Established
9,896Population
6.2 sq miArea
597 ftElevation

Peru is a city in LaSalle and Bureau counties, Illinois, United States. The population was 9,896 at the 2020 census, down from 10,295 at the 2010 census. It is part of the Ottawa, IL Micropolitan Statistical Area. Peru and its twin city, LaSalle, make up the core of Illinois Valley.

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From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

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The weekly

This week in Peru

A Hydrologic Outlook is in effect, with Mostly Cloudy. In the local news, Morris Girls Varsity Basketball @ LaSalle-Peru (MaxPreps), LaSalle-Peru vs Alton - Boys Varsity Football 09/05/2026 | Watch Live & On Demand (NFHS Network), and Marquette Girls Varsity Volleyball @ St. Bede (MaxPreps).

The community noted 2 passings this week (obituaries).

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Peru

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01