The Sunburst post office opened in 1912, the earliest record of the town by name.
2020 census: 333114 years
How did Sunburst get its name?
Sunburst’s name comes from what is considered a dramatic sunrise that occurs when the sun comes over the Sweetgrass Hills and illuminates the local fields.
Sunburst has its origins as a farming community and later saw significant population growth after oil development occurred in the 1920s. A refinery was built in 1922 with the discovery of oil in the Kevin Sunburst Oil Field. Since oil development in the area ceased in the 1970s, Sunburst has once again become a primarily agricultural town. The local high school gives homage to its past, as its students are known as the Sunburst Refiners. Its name comes from what is considered a dramatic sunrise that occurs when the sun comes over the Sweetgrass Hills and illuminates the local fields.
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, 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.