| Country | Area | Population | Island | % Correct |
|---|---|---|---|---|
| Finland | 685 km² | 22.000 | Fasta Åland | 89%
|
| Sweden | 2.994 km² | 57.400 | Gotland | 89%
|
| Bornholm | 588 km² | 44.100 | Bornholm | 79%
|
| Sweden | 1.342 km² | 23.000 | Öland | 79%
|
| Estonia | 2.673 km² | 31.400 | Saaremaa | 64%
|
| Germany | 935 km³ | 73.000 | Rügen | 61%
|
| Estonia | 989 km² | 8.400 | Hiiumaa | 50%
|
| Denmark | 1.243 km² | 68.200 | Lolland | 39%
|
| Germany | 445 km² | 76.500 | Usedom | 39%
|
| Denmark | 514 km² | 43.500 | Falster | 18%
|
| Finland | 560 km² | 6.700 | Kimitoön | 7%
|
| Sweden | 13 km² | 43.400 | Lidingö | 4%
|
| Sweden | 181 km² | 48.000 | Värmdö | 4%
|
| Russia | 15 km² | 42.800 | Kotlin | 0%
|