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1 (National)
Czech
[ces]
1 (National). De facto national language. 10,532,000 in Czechia, all users. L1 users: 10,400,000 in Czechia (European Commission 2012). L2 users: 132,000 (European Commission 2012). Total users in all countries: 13,414,560 (as L1: 10,732,560; as L2: 2,682,000).
4 (Educational)
English
[eng]
4 (Educational). 2,907,200 in Czechia, all users. L1 users: 7,200 in Czechia (2011 census). L2 users: 2,900,000 (European Commission 2012).
5 (Developing)
Bavarian
[bar]
5* (Developing). 9,000 in Czechia (2005).
Czech Sign Language
[cse]
5 (Developing). Recognized language (1998, Zákon o komunikačních systémech neslyšících a hluchoslepých osob (Law on communication systems of deaf and deafblind persons) 155/1998, Article 4, as amended 384/2008, Part One). 10,000 (2019 EUD). EUD estimate is of deaf sign language users (about 0.1% of the total population). Other estimates: 12,000 (2011 census); 51,500 deaf (2014 IMB).
5 (Dispersed)
French
[fra]
5* (Dispersed). 235,060 in Czechia, all users. L1 users: 2,060 in Czechia (2011 census). L2 users: 233,000 (Beck et al 2018).
German, Standard
[deu]
5* (Dispersed). Recognized language (2001, National Minority Rights Act No. 273, Article 2). 1,624,100 in Czechia, all users. L1 users: 14,100 in Czechia (2011 census). L2 users: 1,610,000 (2020).
Polish
[pol]
5* (Dispersed). Recognized language (2001, National Minority Rights Act No. 273, Article 2). 33,600 in Czechia (2011 census).
Romani, Sinte
[rmo]
5* (Dispersed). Recognized language (2001, National Minority Rights Act No. 273, Article 2). 5,100 in Czechia (2004).
Slovak
[slk]
5* (Dispersed). Recognized language (2001, National Minority Rights Act No. 273, Article 2). 1,854,000 in Czechia, all users. L1 users: 154,000 in Czechia (2011 census). L2 users: 1,700,000 (European Commission 2012).
6a (Vigorous)
Rusyn
[rue]
6a* (Vigorous). Recognized language (2001, National Minority Rights Act No. 273, Article 2). 780 in Czechia (2011 census).
Silesian, Lower
[sli]
6a* (Vigorous). 10,900 in Czechia (2001 census).
6b (Threatened)
Romani, Carpathian
[rmc]
6b* (Threatened). Recognized language (2001, National Minority Rights Act No. 273, Article 2). 2,710 in Czechia (2011 census).
Unestablished
Bulgarian
[bul]
Unestablished. 5,410 in Czechia (2011 census).
Croatian
[hrv]
Unestablished. 1,390 in Czechia (2011 census).
Greek
[ell]
Unestablished. 1,360 in Czechia (2011 census).
Hungarian
[hun]
Unestablished. 11,500 in Czechia (2011 census).
Italian
[ita]
Unestablished. 1,420 in Czechia (2011 census).
Mongolian, Halh
[khk]
Unestablished. 3,330 in Czechia (2011 census).
Romanian
[ron]
Unestablished. 4,920 in Czechia (2011 census).
Russian
[rus]
Unestablished. 2,000,000 in Czechia (Arefyev 2012), all users. L1 users: 31,600 (2011 census).
Serbian
[srp]
Unestablished. 1,930 in Czechia (2011 census).
Spanish
[spa]
Unestablished. 39,220 in Czechia, all users. L1 users: 1,920 in Czechia (2011 census). L2 users: 37,300 (Instituto Cervantes 2019).
Ukrainian
[ukr]
Unestablished. 48,300 in Czechia (2011 census).
Vietnamese
[vie]
Unestablished. 30,800 in Czechia (2011 census).