This document contains information about bacterial strains from the genus Xylella fastidiosa isolated from different plant species and locations. It includes the strain code, subspecies, host plant, country and location of isolation, year of isolation, and reference codes from other collections for each strain. The strains were isolated from plants such as almond, grape, oleander, and Prunus species in locations including California, Georgia, and North Carolina in the United States as well as Belgium and the Netherlands.