Edgar is a census-designated place and unincorporated community in Carbon County, Montana, United States. Although it is unincorporated, Edgar has a post office with a ZIP code of 59026. Edgar lies east of the intersection of U.S. Route 310 and Elwell Street. Edgar is south of Rockvale and northeast of Fromberg. Edgar is a small, agricultural community with a number of silos and elevators. It is also home to a bar & grill restaurant and some other services.
- ^ "American FactFinder". United States Census Bureau. Retrieved 2011-05-14.
- ^ "Edgar". Geographic Names Information System, U.S. Geological Survey.
- ^ Zip Code Lookup