International Speaker Numbers according to EGIDS (Ethnologue / Glottolog)

Overall Speaker Number	Source
12 466 210	/

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
Austria	Czech	17 742 (given)	Colloquial language	2001
Croatia	Czech	4 915	Mother Tongue	2021
Czech Republic	None ('De facto' official language: Czech)	8 996 475	Mother Tongue	2021
Poland	Czech	1 451 (given)	Household Language	2011
Romania	Czech	1 130 (given)	Mother Tongue	2021
Serbia	Czech	1 317 (given, as 'Czechs')	Ethnicity	2022
Slovakia	Czech	33 864 (given)	Mother Tongue	2021

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
Austria	Czech	5* (Dispersed)
Croatia	Czech	4 (Educational)
Czech Republic	None ('De facto' official language: Czech)	1 (National)
Poland	Czech	5* (Dispersed)
Romania	Czech	5* (Dispersed)
Serbia	Czech	5* (Dispersed)
Slovakia	Czech	5* (Dispersed)

Official Language in

Czech Republic

ECRML-Recognised in

Austria

Croatia

Poland

Romania

Serbia

Slovakia