Launched in 2016, the project to remodel the station was aimed at making it more accessible to passengers with disabilities.
The remodeled station now includes an elevator, stair towers, a pedestrian over pass, high-level platforms, 69 parking spaces and a long-term parking lot, PennDOT officials said in a press release.
The station revitalization cost about $33 million, and was funded with state and federal dollars.
Mount Joy Station is located on Amtrak's Keystone route.