International Speaker Numbers according to EGIDS (Ethnologue / Glottolog)

Overall Speaker Number	Source
40 000	/

International Speaker Numbers according to UNESCO

Overall Speaker Number	Source
Site under maintenance (will be updated)	https://en.wal.unesco.org/world-atlas-languages

International Speaker Numbers according to ELCAT (Endangered Languages Project)

Overall Speaker Number	Source
Not listed	https://endangeredlanguages.com/

National Speaker Numbers

Country	Language	National Speaker Number	Bases for Calculation	Year	Source
Italy	Italian Sign Language (LIS)	Approx. 40 000 (not a census)	Deaf Sign Language Users	2026 (Website accessed)
Slovenia	Italian Sign Language (LIS)	Unknown	Unknown	Unknown

International Endangerment according to UNESCO

Endangerment Level	Source
Site under maintenance (will be updated)	https://en.wal.unesco.org/world-atlas-languages

International Endangerment according to ELCAT (Endangered Languages Project)

Endangerment Level	Source
Not listed	https://endangeredlanguages.com/

National Endangerment according to EGIDS (Ethnologue / Glottolog)

Country	Language	Endangerment Level	Source
Italy	Italian Sign Language (LIS)	5 (Developing)
Slovenia	Italian Sign Language (LIS)	Not listed

Official Language in

Italy

Slovenia