Latvian language
The history of the Latvian language (cf. below) has placed it in a peculiar position for a language of its size whereby it is spoken by a large number of non-native speakers as compared to native speakers. The immigrant and minority population in Latvia is 700,000 people: Russians, Belarusians, Ukrainians, Poles, and others. The majority of immigrants came to Latvia between 1940–1991; supplementing pre-existing ethnic minority communities (Latvian Germans, Latvian Jews). In a recent survey, 60% of Latvia's ethnic minorities described their knowledge of Latvian as fluent. Fluency in Latvian is prevalent among the younger generations of the minorities.
Ludza Estonians
By the 19th century the church had become Latvianised and Russian had become the official language and lingua franca. According to Oskar Kallas, who made a studying trip to area in 1893, there were 4,387 Ludza Estonians of whom some 800 could speak Estonian. In the 1970s and 80s, there were some 20 people left in the area still using the language, but it is now most likely to have perished. The dialect spoken by Ludza Estonians, was closely related to eastern Võro-dialects. It contained about 180 loanwords from Latvian language and some from Russian. Ludza Estonians reportedly had some difficulty understanding standard Estonian.