Wikipedia doesn’t have a history of Darby yet. The photos, dates and memories neighbors add here are how it gets written.
Darby is a town in Ravalli County, Montana, United States. The population was 783 at the 2020 census. Darby is located near the southwestern border of Montana and Idaho, along the Continental Divide. Officially established in 1889, the town was named after James W. Darby who signed the post office application.
Its first post office opened in 1889. Between the 2010 and 2020 censuses its population grew from 720 to 783 (+9%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Darby, 1889 to 1940
Woven from the archive, old maps, post office records, the National Register and the people born here.
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.
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 (6), 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.