Most of Cook was built recently: 10% of its homes predate 1940 and the median home dates from 1971. Below: maps from 1964 on and the census since 1930.
The city of Cook was known initially as Little Fork, because of the river of the same name that runs through the city, later known as Ashawa, which means "by the river or across the river"; its name was changed to Cook on August 1, 1908, at the request of the U.S. Postal Service "because of confusion with a village in southern Minnesota named Oshawa". The town was named in honor of Wirth Cook, an owner of the railroad that was constructed through Cook in 1903 and 1904. Cook was incorporated on May 13, 1926.
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 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.