As a developed community, Linthicum began with the 1908 founding of the "Linthicum Heights Company", though a "Linthicum" or "Linthicum's" station on the 1887 Annapolis and Baltimore Short Line railroad existed at least as early as 1889. The community's name was from the area's primary land-owning family since an 1801 purchase by Abner Linthicum.
As a developed community, Linthicum began with the 1908 founding of the "Linthicum Heights Company", though a "Linthicum" or "Linthicum's" station on the 1887 Annapolis and Baltimore Short Line railroad existed at least as early as 1889. The community's name was from the area's primary land-owning family since an 1801 purchase by Abner Linthicum.