| Country | Language | National Speaker Number | Bases for Calculation | Year | Source |
|---|---|---|---|---|---|
| Bulgaria | Russian | 1 675 800 | Users | 2011 | |
| Estonia | Russian | 1 121 000 | Users | 2021 | |
| Finland | Russian | 95 535 (given) | Mother Tongue | 2022 | |
| Latvia | Russian | 2 151 000 | Users | 2021 | |
| Lithuania | Russian | 2 511 000 | Users | 2019 | |
| Poland | Russian | 19 805 (given) | Household Language | 2011 | |
| Romania | Russian | 14 414 (given) | Mother Tongue | 2021 | |
| Serbia | Russian | 1 400 000 | Users | 2012 | |
| Slovakia | Russian | 4 947 (given) | Mother Tongue | 2021 |
| Country | Language | Endangerment Level | Source |
|---|---|---|---|
| Bulgaria | Russian | 5* (Dispersed) | |
| Estonia | Russian | 4 (Educational) | |
| Finland | Russian | Unestablished | |
| Latvia | Russian | 3 (Wider communication) | |
| Lithuania | Russian | 3 (Wider communication) | |
| Poland | Russian | 5* (Dispersed) | |
| Romania | Russian | 5* (Dispersed) | |
| Serbia | Russian | 4 (Educational) | |
| Slovakia | Russian | Unestablished |
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