International Speaker Numbers according to EGIDS (Ethnologue / Glottolog)

Overall Speaker Number	Source
51 500	/

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
12 000	https://endangeredlanguages.com/

National Speaker Numbers

Country	Language	National Speaker Number	Bases for Calculation	Year	Source
Czech Republic	Czech Sign Language (ČZJ)	Approx. 10 000 (not a census)	Deaf Sign Language Users	2026 (Website accessed)

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
Vulnerable	https://endangeredlanguages.com/

National Endangerment according to EGIDS (Ethnologue / Glottolog)

Country	Language	Endangerment Level	Source
Czech Republic	Czech Sign Language (ČZJ)	5 (Developing)

Official Language in

Czech Republic