Oconto’s post office opened in 1852, and 28% of its homes were built before 1940
More historic than 81% of U.S. towns · #78 of 362 in Wisconsin. What drives it
13 places in town are on the National Register, among them the Oconto Site, a National Historic Landmark, and a historic district with 20 buildings. Below: maps from 1883 on and the census since 1860.
Founding year: the first Oconto post office (Blevins & Helbock, CC0). Wikidata: 1869.The full story ↓
History grade
What drives Oconto’s History grade
On its age, its old homes and the National Register, Oconto is more historic than 81% of U.S. towns, #78 of 362 in Wisconsin. Its National Register listings hold the grade up; its age pulls it down.
A−
HistoryA character grade: shown, never part of Oconto’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 Oconto’s 75.7 sits above most of its state (92% of Wisconsin towns have fewer) while its 35 historic buildings outnumber those of 83% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from B to A. The pre-1940 share is a Census survey estimate (±4.8 points). The founding year is the first post office, not a stated founding date; Wikidata’s 1869 falls in the same era, so the grade doesn’t depend on which one is used.
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 Oconto’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Fire insurance maps drew every building, what it was made of and what it was used for, so insurers could price the risk of fire. Pick a year, then a sheet.
Oconto is home to Copper Culture State Park, which has remains dated to around 5000 to 6000 BC. It is a burial ground of the Copper Culture Indians. This burial ground is considered to be the oldest cemetery in Wisconsin and one of the oldest in the nation. Their descendants include the Menominee, who have lived here for thousands of years.
The Oconto post office opened in 1852, the earliest record of the town by name (U.S. post office records). Wikidata gives 1869.
How does Oconto rank for history?
Oconto is more historic than 81% of U.S. towns, #78 of 362 in Wisconsin. 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 Oconto?
13 listings: 11 buildings, 1 historic district, the West Main Street Historic District, with 20 contributing buildings, and 1 site. 35 historic buildings in all.
How old are the homes in Oconto?
28% of Oconto’s homes were built before 1940 (Census estimate, ±4.8 points), against a typical 12% for a Wisconsin town; the median home was built in 1962.
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 Wikidata (6), the National Register of Historic Places (13), 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 Sanborn fire insurance maps (Library of Congress). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.