| County | Capital | Area [km2] | Population (2021 Census) |
|---|---|---|---|
| Alytus | Alytus | 5425 | 137747 |
| Kaunas | Kaunas | 8089 | 569571 |
| Klaipėda | Klaipėda | 5209 | 322283 |
| Marijampolė | Marijampolė | 4463 | 138292 |
| Panevėžys | Panevėžys | 7881 | 216233 |
| Šiauliai | Šiauliai | 8540 | 262220 |
| Tauragė | Tauragė | 4411 | 92662 |
| Telšiai | Telšiai | 4350 | 133376 |
| Utena | Utena | 7201 | 127581 |
| Vilnius | Vilnius | 9731 | 810797 |