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.
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.
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.
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.
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.
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.