Latgalian language
Latgalian is spoken in Latgale, the eastern part of Latvia. It is debated whether it is a separate language or a distinct dialect of Latvian. Nevertheless, its standardized form is recognized and protected as a "historical variety of the Latvian language" "(vēsturisks latviešu valodas paveids)" by Latvian law. The 2011 Latvian census established that 8.8% of Latvia's inhabitants, or 164,500 people, speak Latgalian daily. 97,600 of them live in Latgale, 29,400 in Riga and 14,400 in the Riga region.
Russian language in Latvia
In the 1925 census Russians were already reported as the largest minority (10.6%) and Russian was spoken as the family language by 14% of inhabitants. A small percent of Russian speakers were not ethnic Russians and conversely a small percentage of ethnic Russians used another language in family, which was attributed to mixed marriages, living in area with another majority language and, in case of Russian speakers, Russification policies of Russian empire. In 1930 census Russian was reported as family language by 13% of inhabitants.