Each edition grades its towns against each other only.
More historic than 35% of U.S. towns. What drives it
Below: maps from 1963 on.
The Porterfield post office opened in 1885, the earliest record of the town by name. Two smaller post offices, Walsh (1902) and Miile's (1909), opened inside today’s town and later closed.
Porterfield was named after a local farmer and businessman, John Porterfield.
More historic than 35% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, Porterfield is more historic than 35% of U.S. towns. Its share of homes from before 1940 holds the grade up; its National Register listings pull it down.
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 Porterfield’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.
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 →
Read from the archive, the National Register and the record. The page puts what stands out first.
The first neighbors to add old photos shape how Porterfield’s history is told.
Porterfield’s post office has been open since 1885. Two other post offices opened and closed inside today’s town.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
From Wikipedia’s history of Porterfield.
The Town of Porterfield was separated from the original two townships in the county, Marinette and Peshtigo, on March 26, 1887. It was named after a local farmer and businessman, John Porterfield.
Text from Wikipedia, licensed CC BY-SA 4.0.
Woven from the archive, old maps, post office records, the National Register and the people born here.
On the mapFirst mapped by the U.S. Geological SurveyEvery edition of the U.S. Geological Survey’s map of Porterfield. Tap a year, or press play to watch the town change.
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Porterfield.
Nobody well known was born in Porterfield itself, so here are the best known from just nearby.
Each neighbor’s History grade, on the same three inputs.
The Porterfield post office opened in 1885, the earliest record of the town by name (U.S. post office records).
Porterfield is more historic than 35% 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.
15% of Porterfield’s homes were built before 1940 (Census estimate, ±4.6 points), against a typical 12% for a Wisconsin town; the median home was built in 1981.
What the archives can’t tell you, neighbors can.
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, 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.
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