Brook Forest’s post office opened in 1921, and 1 of its places is on the National Register
Most of Brook Forest was built recently: 0.0% of its homes predate 1940 and the median home dates from 1975. Its Register listing is the Brook Forest Inn. Below: maps from 1957 on.
The Brook Forest, Colorado, post office operated from October 11, 1921, until Feb 15, 1949. The Evergreen Post Office (ZIP Code 80439) now serves the area.
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 National Register of Historic Places (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.