Idaho Postal History


Railway Post Offices



Over the years and counting all terminal changes, a total of 109 Railway Post Offices plus one Transfer Office have operated in Idaho. Links to lists of all these Railway Post Offices appear below. The lists are based on the various records that were maintained and in some cases published by the Post Office Department at the time.

For Railway Post Offices by route alphabetically, click on a letter group in the first table. For Railway Post Offices by railroad chronologically, click on a railroad in the second table.


Railway Post Offices by Route
A Through G
H Through R
S Through Z


Railway Post Offices by Railroad
Chicago Milwaukee Saint Paul & Pacific Main Line and Branch Lines
Great Northern Main Line
Northern Pacific Main Line
Northern Pacific Branch Lines
Oregon Short Line / Union Pacific Main Line
Oregon Short Line / Union Pacific Branch Lines
Oregon Washington / Union Pacific Branch Lines
Utah Northern / Oregon Short Line / Union Pacific Main Line
Utah Northern / Oregon Short Line / Union Pacific Branch Lines
Short Lines


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Revised November 12, 2007


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