US Post Office-Dillon Main
Also known as Dillon Post Office; Dillon Main Post Office
Many listed buildings are private homes. Please enjoy them from the street.
About US Post Office-Dillon Main
US Post Office-Dillon Main, at 117 S. Idaho St., was added to the National Register of Historic Places on Mar 14, 1986. It was among the first 5 of Dillon’s 10 listings. The Register lists it for its politics and architecture, at the state level. It describes its style as Neo-Classical, as it does for 10 other Montana listings. It was listed as part of US Post Offices in Montana, 1900-1941, TR. Four more Register listings are within a quarter mile.
What it isHistoric building in Dillon, Montana, United States. From Wikidata (CC0).
PDFRead the original nominationThe form that put it on the Register, with its history, photos and a map · 19 MB · National Archives↗Make it a walk: 5 landmarks in about 10 minutes
117 S. Idaho St., Dillon · about 0.4 miles on foot, as the crow flies
5 more Register listings within 2 miles
★ National Historic Landmark · D district · B building · S site. Each opens its own page.
Memories of US Post Office-Dillon Main
The record says what it is. Neighbors know what it means.
Your answer becomes a post in Town Square.
Questions about US Post Office-Dillon Main
Is US Post Office-Dillon Main on the National Register of Historic Places?
Yes. It was added on Mar 14, 1986 (Register number 86000683).
Is US Post Office-Dillon Main a National Historic Landmark?
No. It is on the National Register; Montana has 25 National Historic Landmarks. The nearest is Bannack Historic District, 17.9 miles away.
Can you visit US Post Office-Dillon Main?
Our record doesn’t say whether it is open to visitors. Many listed buildings are private, so it may only be seen from the street.
Where can I read the history of US Post Office-Dillon Main?
In its National Register nomination, the form that put it on the Register: a 19 MB PDF at the National Archives, linked on this page.
Sources: National Park Service, National Register of Historic Places (05/22/2026) · National Archives catalog record 71974410 · Wikidata. Map tiles © OpenStreetMap contributors.