| Language | Population | Bloc | Family | Cluster | Band | |
|---|---|---|---|---|---|---|
| ● Spanish | 419,369,960 | Indo-European | Italic | Ibero-Romance | Castilian | |
| ● Portuguese | 210,736,830 | Indo-European | Italic | Ibero-Romance | Portuguese-Galician | |
| ● Catalan | 8,064,390 | Indo-European | Italic | Ibero-Romance | ||
| ● Occitan | 7,457,470 | Indo-European | Italic | Ibero-Romance | ||
| ● Galician | 4,574,900 | Indo-European | Italic | Ibero-Romance | Portuguese-Galician | |
| ● Extremaduran | 1,261,000 | Indo-European | Italic | Ibero-Romance | Castilian | |
| ● Asturian | 583,100 | Indo-European | Italic | Ibero-Romance | Asturo-Leonese | |
| ● Ladino | 55,540 | Indo-European | Italic | Ibero-Romance | Castilian | |
| ● Mirandese | 14,200 | Indo-European | Italic | Ibero-Romance | Asturo-Leonese | |
| ● Fala | 11,400 | Indo-European | Italic | Ibero-Romance | Portuguese-Galician | |
| ● Spanish, Loreto-Ucayali | 3,090 | Indo-European | Italic | Ibero-Romance | Castilian | |
| ● Minderico | 527 | Indo-European | Italic | Ibero-Romance | Portuguese-Galician |