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AHistory
History · Peru

Peru dates to 1838, and 28% of its homes were built before 1940

More historic than 88% of U.S. towns · #100 of 768 in Illinois. What drives it

1 place in town is on the National Register, among them a historic district with 3 buildings. Below: 6 old photos and papers, maps from 1893 on, and the census since 1850.

1838founded
1on the National Register
28%homes built before 1940
6old photos & papers
9famous people
From Peru’s archive · credits on each photo
Quick answers

How Peru began

When was Peru founded?

1838

Peru dates its founding to 1838 (Wikidata and Wikipedia’s history agree). The census first counted it in 1850.

First census: 1,279 in 18502020 census: 9,896188 years

How historic is Peru?

A

More historic than 88% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
Founding year: Wikidata; Wikipedia’s history section gives the same year. First post office: 1848.The full story ↓
History grade

What drives Peru’s History grade

On its age, its old homes and the National Register, Peru is more historic than 88% of U.S. towns, #100 of 768 in Illinois. All 3 inputs are above most U.S. towns; its share of homes from before 1940 ranks highest and its National Register listings lowest.

A
HistoryA character grade: shown, never part of Peru’s overall grade.
All U.S. towns we grade (21,289)Ahead of 88%
NewerOlder
Illinois towns of 2,500+ (768)Ahead of 87%

Few Illinois towns list much on the Register (a typical Illinois town has 0.5 per 10,000 residents, the U.S. 2.4), so Peru’s 3.1 sits above most of its state (71% of Illinois towns have fewer) while its 3 historic buildings outnumber those of 65% of U.S. towns.

How sure. Graded on any two of the three inputs instead, the letter would range from A− to A. The pre-1940 share is a Census survey estimate (±4.5 points). Two sources give 1838.

Founding year: Wikidata (other dates in Quick answers). Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →

What stands out about Peru’s past

Read from the archive, the National Register and the record. The page puts what stands out first.

★ What stands out · On the map

Peru on the map, 1893 to 1979

Every edition of the U.S. Geological Survey’s map of Peru. Tap a year, or press play to watch the town change.

Peru on the 1893 USGS mapPeru on the 1911 USGS mapPeru on the 1947 USGS mapPeru on the 1966 USGS mapPeru on the 1979 USGS map1893La Salle sheet · 1:62,500

U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Peru.

Timeline

Peru, 1838 to 1984

Woven from the archive, old maps, post office records, the National Register and the people born here.

  1. 19th century
  2. 1838
    FoundingPeru is established
  3. 1848Post officeThe Peru post office opens
  4. 1860Born hereFlorence Holbrook is born here
  5. 1866In the archiveLumber(?) mill with "Barton" sign on top
  6. 1893On the mapFirst mapped by the U.S. Geological Survey
  7. 1895Born hereZez Confrey is born here
  8. 20th century
  9. 1982Born hereJ. A. Happ is born here
  10. 1984Born hereNora Kirkpatrick is born here
The story

How Peru came to be

From Wikipedia’s history of Peru.

Read it all →

The city's first settler was John Hays, who arrived in 1830. The city was organized as a borough in 1838, incorporated as a village February 25, 1845, and incorporated as a city on March 13, 1851. The original plat was between West Street, 4th Street, and East Street (now Pine Street).

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about Peru in 1877

Passages that mention Peru, cut from the printed page as they were published.

Peru was firet surveyed and platted by the school commission: ers in 1834. The Ninawa addition was platted and recorded by T. D. Brewster in 1836, embracing moat of the business part of the town. Pera was incorporated acity in Mareh, 1861, T.D, Brows ter wus the first mayor Vote polled im 1876, 862…
History of LaSalle County, Illinois1877 · page 547Read the page →
Read the text

Peru was firet surveyed and platted by the school commission: ers in 1834. The Ninawa addition was platted and recorded by T. D. Brewster in 1836, embracing moat of the business part of the town. Pera was incorporated acity in Mareh, 1861, T.D, Brows ter wus the first mayor Vote polled im 1876, 862, and the popula.

Text read by machine from the scan; it may contain errors.

Scans and text from the Internet Archive. Books published in 1930 or earlier, which are in the public domain.

By decade

Peru, decade by decade

One decade in the archive so far: the 1860s. Scroll each row; tap a photo for its story.

Then & now

Stand where they stood

No then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.

Lumber(?) mill with "Barton" sign on top
Retake this viewLumber(?) mill with "Barton" sign on top, 1866

Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Peru’s page.

Retake this view · +15
On the National Register

1 historic place in Peru

The country’s official list of buildings and places worth saving.

place listed
1
National Historic Landmarks
0
none yet
historic buildings protected
3
each building in a district counts
first listed
2007
Westclox Manufacturing Plant Historic District
Districts

Architectural styles listings

Early 20th Century Industrial1
All 1 listings

National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.

People over time

Peru, census by census

02,0004,0006,0008,00010,00012,0001850190019502000Peak: 11,772

Between 1,279 and 11,772 people in every census since 1850.

18 censuses, 1850–2020.

U.S. Census Bureau decennial counts, from the census table on Peru’s Wikipedia page.

Famous people

9 famous people were born in Peru

Writers, athletes, leaders and more, ranked by how widely they’re known.

See all →
Places that used to be

Places now gone

Peru’s post office has been open since 1848.

Gone or out of use
Saint Valentine's Schoolschool

US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).

Help out

Finish Peru’s story

Most archives stop around 1920. The photos from after that are in family albums, not libraries.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
Stories next door

History across the town line

Each neighbor’s History grade, on the same three inputs.

Questions about Peru’s history

What year was Peru founded?

In 1838, according to Wikidata and Wikipedia’s history of the town. Peru’s post office opened in 1848, and the census of 1850 counted 1,279 people here.

How does Peru rank for history?

Peru is more historic than 88% of U.S. towns, #100 of 768 in Illinois. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.

What is on the National Register in Peru?

One place: the Westclox Manufacturing Plant Historic District (listed 2007).

How old are the homes in Peru?

28% of Peru’s homes were built before 1940 (Census estimate, ±4.5 points), against a typical 11% for an Illinois town; the median home was built in 1958.

Memory lane

What the archives can’t tell you, neighbors can.

Town Square →
Start a conversation
Sources

Where this page comes from

Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021).

From Wikimedia Commons (4), the Library of Congress (2), the National Register of Historic Places (1), Wikipedia, Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock), the USGS Geographic Names Information System and old county and town histories (Internet Archive). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.