As the southwestern boundaries of Lithuania Minor have been variously defined over the years, I chose a border following the course of major rivers, roughly corresponding to lands where Lithuanian had been commonly spoken at the start of the 19th century.

All settlements mapped and sorted according to the following document:

Königlich Preußisches Statistisches Landesamt: Gemeindelexikon für die Provinz Ostpreußen. Auf Grund der Materialien der Volkszählung vom 1. Dezember 1905 und anderer amtlicher Quellen. Berlin 1907