On its age, its old homes and the National Register, Cannon Falls Township is more historic than 40% of U.S. towns. Its share of homes from before 1940 holds the grade up; its National Register listings pull it down.
C+
HistoryA character grade: shown, never part of Cannon Falls Township’s overall grade.
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 Cannon Falls Township’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.
How sure. Graded on two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share is a Census survey estimate (±3.8 points).
Founding year: our sources. 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 Cannon Falls Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Wikipedia doesn’t have a history of Cannon Falls Township yet. The photos, dates and memories neighbors add here are how it gets written.
Cannon Falls Township is a township in Goodhue County, Minnesota, United States. The population was 1,236 at the 2000 census. Cannon Falls Township was organized in 1858, and named for the falls on the Cannon River.
Between the 2010 and 2020 censuses its population fell from 1,070 to 1,028 (-4%).
Intro from Wikipedia. Population: U.S. Census Bureau.
The U.S. Geological Survey’s map of Cannon Falls Township.
1953Saint Paul sheet · 1:250,000
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Cannon Falls Township.
Then & now
Stand where they stood
No then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.
Retake this viewBridge 4759, Carrying Trunk Highway 20 over Cannon River
Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Cannon Falls Township’s page.
Cannon Falls Township is more historic than 40% 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 Cannon Falls Township?
17% of Cannon Falls Township’s homes were built before 1940 (Census estimate, ±3.8 points), against a typical 8.1% for a Minnesota town; the median home was built in 1976.
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 the Library of Congress (1), U.S. Geological Survey historical maps 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.
Date?
