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B−History
History · Cato

Cato’s post office opened in 1870, and 30% of its homes were built before 1940

More historic than 49% of U.S. towns. What drives it

Below: 6 old photos and papers and maps from 1954 on.

1870first post office
0on the National Register
30%homes built before 1940
6old photos & papers
1famous people
From Cato’s archive · credits on each photo
Quick answers

How Cato began

When was Cato founded?

1870

The Cato post office opened in 1870, the earliest record of the town by name. Three smaller post offices, Clark's Mills (1855), Grimms (1874) and Jerpen (1899), opened inside today’s town and later closed.

2020 census: 1,621156 years

How historic is Cato?

B−

More historic than 49% of U.S. towns, on its age, its old homes and the National Register.

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

What drives Cato’s History grade

On its age, its old homes and the National Register, Cato is more historic than 49% of U.S. towns. Its share of homes from before 1940 holds the grade up; its National Register listings pull it down.

B−
HistoryA character grade: shown, never part of Cato’s overall grade.
All U.S. towns we grade (21,289)Ahead of 49%
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 Cato’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 B. The pre-1940 share is a Census survey estimate (±6.4 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 Cato’s past

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

★ What stands out · Places that used to be

Lost post offices, old corners, places now gone and burying grounds

Cato had its own post office from 1870 to 1992. Three other post offices opened and closed inside today’s town.

Clark's Mills
1855–1904
Cato
1870–1992
Grimms
1874–1955
Jerpen
1899–1904
18501940today
Hamlets and corners on the map
Cato FallsClarks MillsGrimmsMadsen
Gone or out of use
Cato Falls SchoolschoolGrace ChurchchurchLowell SchoolschoolMadsen SchoolschoolWhitelaw Schoolschool
4cemeteries and burying grounds inside Cato
Cato HeightsGjerpenGraceSaint Mary

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

The story

How Cato came to be

From Wikipedia’s history of Cato.

Read it all →

A post office called Cato was established in 1870, and remained in operation until it was discontinued in 1998. The town was named after Cato, New York, the former hometown of an early settler.

Text from Wikipedia, licensed CC BY-SA 4.0.

Timeline

Cato, 1855 to 1993

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

  1. 19th century
  2. 1855Post officeThe Clark's Mills post office opens
  3. 1857Born hereThorstein Veblen is born here
  4. 1870Post officeThe Cato post office opens
  5. 1874Post officeThe Grimms post office opens
  6. 20th century
  7. 1904Post officeThe Clark's Mills post office closes
  8. 1954On the mapFirst mapped by the U.S. Geological Survey
  9. 1955Post officeThe Grimms post office closes
  10. 1992Post officeThe Cato post office closes
  11. 1993In the archiveANGLE VIEW, FACING NORTHEAST. - Reitmeyer Tavern, 13840 U.S. Highway 10
By decade

Cato, decade by decade

One decade in the archive so far: the 1990s. Scroll each row; tap a photo for its story.

On the map

Cato on the map, 1954 to 1978

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

Cato on the 1954 USGS mapCato on the 1978 USGS map1954Reedsville 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 Cato.

Help out

Finish Cato’s story

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

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
1 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 Cato’s history

What year was Cato founded?

The Cato post office opened in 1870, the earliest record of the town by name (U.S. post office records).

How does Cato rank for history?

Cato is more historic than 49% 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 Cato?

30% of Cato’s homes were built before 1940 (Census estimate, ±6.4 points), against a typical 12% for a Wisconsin town; the median home was built in 1971.

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 (6), Wikipedia, Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.