Each edition grades its towns against each other only.
More historic than 18% of U.S. towns · #230 of 273 in Minnesota. What drives it
Most of Mayer was built recently: 3% of its homes predate 1940 and the median home dates from 2007. Below: maps from 1957 on and the census since 1910.
The Mayer post office opened in 1888, the earliest record of the town by name. Another post office, Helvetia (1875), opened inside today’s city and later closed.
More historic than 18% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, Mayer is more historic than 18% of U.S. towns, #230 of 273 in Minnesota. Its age holds the grade up; its share of homes from before 1940 pulls it down.
Minnesota towns list about as much on the Register as the country (a typical Minnesota town has 2.1 per 10,000 residents, the U.S. 2.4), so Mayer’s 0.0 sits below most of its state (23% of Minnesota 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 Mayer’s history is told.
From Wikipedia’s history of Mayer.
A post office was first established in Helvetia in 1875, and the name was changed to Mayer in 1888. The name Mayer was given it by railroad officials.
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.
Every edition of the U.S. Geological Survey’s map of Mayer. 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 Mayer.
Grew from 161 people in 1910 to 2,453 in 2020, more than tenfold.
12 censuses, 1910–2020.
U.S. Census Bureau decennial counts, from the census table on Mayer’s Wikipedia page.
Mayer’s post office has been open since 1888. Another post office, Helvetia, 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).
Each neighbor’s History grade, on the same three inputs.
The Mayer post office opened in 1888, the earliest record of the town by name (U.S. post office records).
Mayer is more historic than 18% of U.S. towns, #230 of 273 in Minnesota. 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.
3% of Mayer’s homes were built before 1940 (Census estimate, ±1.8 points), against a typical 8.1% for a Minnesota town; the median home was built in 2007.
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 (2), 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) 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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