Most of Onalaska was built recently: 9% of its homes predate 1940 and the median home dates from 1976. Below: 1 old photo or paper and maps from 1943 on.
Onalaska was built around the inland mill established by the Carlisle Lumber Company in 1909, with actual production commencing in 1914. At its peak in 1929, company inventory numbered over 20 million board feet of lumber, producing 300,000 board feet per day. The community's population was approximately 1,000, with 175 single-family homes and almost 50 bunkhouses of various occupancy. During the Great Depression, with issues regarding falling timber prices and production, along with increased unionization efforts, the Carlisle family closed the facility. The mill was sold for scrap during World War II.
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 the Library of Congress (1), 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.