Is there available an easily digestible (i.e., CSV or something) source for Amtrak rail station codes? They have a code page here but I'm looking for something that could be included in a database lookup, without scraping and building it myself.
Scraped and built for you, up on Open Data SE's datahub.io account; note, these are only for America, not all Amtrak stations/codes:
Added official Amtrak Stations (of U.S.) GeoJSON dataset:
Updated database of the Federal Railroad Administration's (FRA) Amtrak Station database. This database is a geographic data set containing Amtrak intercity railroad passenger terminals in the United States and Canada. Attribute data include services and passenger amenities provided at the station
Amtrak Stations - US DOT