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C+History
History · Leon

Leon’s post office opened in 1851, and 16% of its homes were built before 1940

More historic than 36% of U.S. towns. What drives it

Below: maps from 1909 on and old-book passages.

1851first post office
0on the National Register
16%homes built before 1940
Quick answers

How Leon began

When was Leon founded?

1851

The Leon post office opened in 1851, the earliest record of the town by name.

2020 census: 1,144175 years

How historic is Leon?

C+

More historic than 36% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
Founding year: the first Leon post office (Blevins & Helbock, CC0).
History grade

What drives Leon’s History grade

On its age, its old homes and the National Register, Leon is more historic than 36% of U.S. towns. Its share of homes from before 1940 holds the grade up; its National Register listings pull it down.

C+
HistoryA character grade: shown, never part of Leon’s overall grade.
All U.S. towns we grade (21,289)Ahead of 36%
NewerOlder

Wisconsin towns list more on the Register than most of the country (a typical Wisconsin town has 3.0 per 10,000 residents, the U.S. 2.4), so Leon’s 0.0 sits below most of its state (28% of Wisconsin towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.

How sure. Graded on any two of the three inputs instead, the letter would range from C− to C+. The pre-1940 share is a Census survey estimate (±6.9 points). The founding year is the first post office, not a stated founding date.

Founding year: the first post office (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 Leon’s past

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

★ What stands out · Help out

Start Leon’s collection

The first neighbors to add old photos shape how Leon’s history is told.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
On the map

Leon on the map, 1909 to 1983

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

Leon on the 1909 USGS mapLeon on the 1947 USGS mapLeon on the 1983 USGS map1909Sparta 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 Leon.

The story so far

Leon, in brief

Wikipedia doesn’t have a history of Leon yet. The photos, dates and memories neighbors add here are how it gets written.

Its first post office opened in 1851. Between the 2010 and 2020 censuses its population grew from 1,086 to 1,144 (+5%).

From the old history books

What they wrote about Leon in 1912

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

At a meeting of the county board of Monroe county on January 6, 1863, a petition having been presented by the inhabitants of the proposed town, a resolution was passed detaching township sixteen, range three west, from the town of Leon and creating it the town of Byron, and provided that the first …
History of Monroe County Wisconsin1912 · page 526Read the page →
Read the text

At a meeting of the county board of Monroe county on January 6, 1863, a petition having been presented by the inhabitants of the proposed town, a resolution was passed detaching township sixteen, range three west, from the town of Leon and creating it the town of Byron, and provided that the first election should be held at the house of Frederick Swartslow on the first Tuesday in April, 1863, which was accordingly done and the town organization perfected. Originally the town comprised the

Text read by machine from the scan; it may contain errors.
He first located in Angelo township, near Sparta, where he remained one year, then went to Minnesota. After a short time he returned to Monroe county and located in Leon township, remaining there two years, and then moved to the town of Wells and spent two more years, and again returned to Leon and…
History of Monroe County Wisconsin1912 · page 776Read the page →
Read the text

He first located in Angelo township, near Sparta, where he remained one year, then went to Minnesota. After a short time he returned to Monroe county and located in Leon township, remaining there two years, and then moved to the town of Wells and spent two more years, and again returned to Leon and spent two years; thence to the town of Angelo, locating on his present farm, eighty acres of which lies in section thirty-four, Angelo, and 157 acres in section three, Wells township, in 1901. In 1905

Text read by machine from the scan; it may contain errors.
county and purchased 324 acres three miles south of the village of Leon, and there lived for thirty years, when he went to reside with his son, who had purchased a farm close to Leon. Here they passed the balance of their long and useful lives; the father died November 21, 1907, in his seventy-four…
History of Monroe County, Wisconsin, past and present1912 · page 927Read the page →
Read the text

county and purchased 324 acres three miles south of the village of Leon, and there lived for thirty years, when he went to reside with his son, who had purchased a farm close to Leon. Here they passed the balance of their long and useful lives; the father died November 21, 1907, in his seventy-fourth year; his Avidow survived until January 23, 1910, Avhen she passed aiWRx at the age of seventy-five years and eight months. They were married in 1857 and raised a family of five children, all of

Text read by machine from the scan; it may contain errors.
From that time until the organization of the county settlements at different points were quite frequent, notably that at Leon in 1851 by E. E. Shaw and companions ; in the town of Jetferson in 1854 by Thompson Hazen who, as has been before mentioned, opened a hotel known as " Hazen 's Corner;" the …
History of Monroe County, Wisconsin, past and present1912 · page 65Read the page →
Read the text

From that time until the organization of the county settlements at different points were quite frequent, notably that at Leon in 1851 by E. E. Shaw and companions ; in the town of Jetferson in 1854 by Thompson Hazen who, as has been before mentioned, opened a hotel known as " Hazen 's Corner;" the settlement of the towns which followed the organization of the county in 1851: are treated in separate articles subsequently in this work.

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.

Timeline

Leon, 1851 to 1918

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

  1. 19th century
  2. 1851Post officeThe Leon post office opens
  3. 20th century
  4. 1909On the mapFirst mapped by the U.S. Geological Survey
  5. 1918Post officeThe Leon post office closes
By decade

No old photos in the archives yet

Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.

Be the first to add onePhotograph a print flat, in daylight, no flash.
Add from your album
Famous people

Famous people close to Leon

Nobody well known was born in Leon itself, so here are the best known from just nearby.

See all →
Places that used to be

Lost post offices and burying grounds

Leon had its own post office from 1851 to 1918.

Leon
1851–1918
18501940today
1cemetery inside Leon
Leon

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

Stories next door

History across the town line

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

Questions about Leon’s history

What year was Leon founded?

The Leon post office opened in 1851, the earliest record of the town by name (U.S. post office records).

How does Leon rank for history?

Leon is more historic than 36% of U.S. towns. 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.

How old are the homes in Leon?

16% of Leon’s homes were built before 1940 (Census estimate, ±6.9 points), against a typical 12% for a Wisconsin town; the median home was built in 1992.

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 U.S. Geological Survey historical maps, 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.