Cavalier was laid out in 1875 on open land. The city was named for Charles Cavileer, an early settler in Pembina County (a recording error accounts for the error in spelling, which was never corrected). A post office has been in operation at Cavalier since 1877. Cavalier was incorporated in 1902.
In the early 1970s, the city of Cavalier's population quadrupled in size due to the U.S.' anti-ballistic missile program. This was in preparation of a nuclear attack on the U.S. during the Cold War with the Soviet Union.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Every edition of the U.S. Geological Survey’s map of Cavalier Township. Tap a year, or press play to watch the town change.
1939Cavalier sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Cavalier 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 viewPembina County Courthouse, c. 1912
Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Cavalier Township’s page.
In 1875, according to Wikidata and Wikipedia’s history of the town. Cavalier Township’s post office opened in 1881, and the census of 1900 counted 671 people here.
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). How TownRatings grades history →
From Wikimedia Commons (29), Wikipedia, 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.