Latvian language
Upper Latvian dialect is spoken in Eastern Latvia. It is set apart from rest of the Latvian by number of phonetic differences. The dialect has two main varieties – Selonian and Non-Selonian. There is a standard language, the Latgalian language, which is based on deep Non-Selonian varieties spoken in south of Latgale. The term "Latgalian" is sometimes also applied to all Non-Selonian varieties or even the whole dialect. However, it is unclear if it is accurate to use the term for any varieties besides the standard language. While the term may refer to varieties spoken in Latgale or by Latgalians, not all speakers identify as speaking Latgalian, for example, speakers of deep Non-Selonian varieties in Vidzeme explicitly deny speaking Latgalian.
Russian language in Latvia
The number was even lower among young people (between 15 and 34 years of age), of whom 54% said they have a good command of Russian, 38% have a low command, while 8% have no knowledge of Russian. Nonetheless, the proportion of people knowing Russian (98%) was still higher than the proportion of people knowing Latvian (92%). If overall 1% of the respondents with the native language of Latvian did not know Russian, 8% of the respondents whose native language was Russian reported not having any knowledge of Latvian in return.