City Country Founded Population Coordinates Anklam Germany 1296 0 0 12,635 53°51′N 13°41′E / 53.850°N 13.683°E / 53.850; 13.683 Baltijsk Russia 1725 0 0 32,697 54°39′N 19°55′E / 54.650°N 19.917°E / 54.650; 19.917 Copenhagen Denmark 1254 1,330,993 55°40′N 12°34′E / 55.667°N 12.567°E / 55.667; 12.567 Darłowo Poland 1312 0 0 14,931 54°25′N 16°25′E / 54.417°N 16.417°E / 54.417; 16.417 Elbląg Poland 1246 0 124,257 54°5′N 19°24′E / 54.083°N 19.400°E / 54.083; 19.400 Flensburg Germany 1284 0 0 87,432 54°46′N 09°26′E / 54.767°N 9.433°E / 54.767; 9.433 Frombork Poland 1310 0 0 0 2,415 54°21′N 19°41′E / 54.350°N 19.683°E / 54.350; 19.683 Gdańsk Poland 997 0 463,754 54°21′N 18°38′E / 54.350°N 18.633°E / 54.350; 18.633 Gdynia Poland 1926 0 247,799 54°30′N 18°32′E / 54.500°N 18.533°E / 54.500; 18.533 Greifswald Germany 1250 0 0 57,985 54°5′N 13°23′E / 54.083°N 13.383°E / 54.083; 13.383 Gävle Sweden 1446 0 0 75,451 60°40′N 16°10′E / 60.667°N 16.167°E / 60.667; 16.167 Haapsalu Estonia 1279 0 0 10,236 58°57′N 23°32′E / 58.950°N 23.533°E / 58.950; 23.533 Hamina Finland 1653 0 0 20,554 60°34′N 27°12′E / 60.567°N 27.200°E / 60.567; 27.200 Hanko Finland 1874 0 0 0 8,578 59°49′N 22°58′E / 59.817°N 22.967°E / 59.817; 22.967 Helsingborg Sweden 1085 0 0 142,793 56°03′N 12°43′E / 56.050°N 12.717°E / 56.050; 12.717 Helsingør Denmark 1420 0 0 61,519 56°02′N 13°37′E / 56.033°N 13.617°E / 56.033; 13.617 Helsinki Finland 1550 1,231,595 60°10′N 24°56′E / 60.167°N 24.933°E / 60.167; 24.933 Härnösand Sweden 1585 0 0 17,556 62°38′N 17°56′E / 62.633°N 17.933°E / 62.633; 17.933 Jūrmala Latvia 1959 0 0 56,646 56°58′N 23°45′E / 56.967°N 23.750°E / 56.967; 23.750 Kaliningrad Russia 1255 0 448,548 54°43′N 20°21′E / 54.717°N 20.350°E / 54.717; 20.350 Kalajoki Finland 1865 (city 2002) 0 0 12,533 64°16′N 23°57′E / 64.267°N 23.950°E / 64.267; 23.950 Kalmar Sweden 1100 0 0 36,392 56°40′N 16°22′E / 56.667°N 16.367°E / 56.667; 16.367 Kamień Pomorski Poland 1274 0 0 0 8,921 53°58′N 14°47′E / 53.967°N 14.783°E / 53.967; 14.783 Kappeln Germany 1375 0 0 0 8,676 54°39′N 9°55′E / 54.650°N 9.917°E / 54.650; 9.917 Karlskrona Sweden 1680 0 0 35,212 56°11′N 15°39′E / 56.183°N 15.650°E / 56.183; 15.650 Kemi Finland 1869 0 0 21,297 65°44′N 24°33′E / 65.733°N 24.550°E / 65.733; 24.550 Kiel Germany 1242 0 247,441 54°19′N 10°8′E / 54.317°N 10.133°E / 54.317; 10.133 Klaipėda Lithuania 1254 0 148,908 55°42′N 21°08′E / 55.700°N 21.133°E / 55.700; 21.133 Køge Denmark 1288 0 0 36,424 55°27′N 12°11′E / 55.450°N 12.183°E / 55.450; 12.183 Kołobrzeg Poland 1255 0 0 46,830 54°10′N 15°34′E / 54.167°N 15.567°E / 54.167; 15.567 Kokkola Finland 1620 0 0 47,722 60°53.2′N 23°08′E / 60.8867°N 23.133°E / 60.8867; 23.133 Kotka Finland 1878 0 0 53,730 60°28′N 26°56′E / 60.467°N 26.933°E / 60.467; 26.933 Kronstadt Russia 1704 0 0 43,005 60°00′N 29°46′E / 60.000°N 29.767°E / 60.000; 29.767 Kuressaare Estonia 1563 0 0 13,635 58°15′N 22°29′E / 58.250°N 22.483°E / 58.250; 22.483 Kärdla Estonia 1564 0 0 4,623 59°0′N 22°45′E / 59.000°N 22.750°E / 59.000; 22.750 Łeba Poland 1357 0 0 0 3,824 54°47′N 17°33′E / 54.783°N 17.550°E / 54.783; 17.550 Liepāja Latvia 1625 0 0 69,443 56°30′N 21°00′E / 56.500°N 21.000°E / 56.500; 21.000 Loviisa Finland 1745 0 0 15,140 60°27.5′N 26°14′E / 60.4583°N 26.233°E / 60.4583; 26.233 Lübeck Germany 1143 0 216,712 53°52′N 10°41′E / 53.867°N 10.683°E / 53.867; 10.683 Luleå Sweden 1621 0 0 76,770 65°36′N 22°09′E / 65.600°N 22.150°E / 65.600; 22.150 Maardu Estonia 1241 0 0 15,596 59°29′N 25°01′E / 59.483°N 25.017°E / 59.483; 25.017 Malbork Poland 1286 0 0 38,478 54°2′N 19°2′E / 54.033°N 19.033°E / 54.033; 19.033 Malmö Sweden 1353 0 341,457 55°35′N 13°02′E / 55.583°N 13.033°E / 55.583; 13.033 Mariehamn Åland Islands 1861 0 0 11,658 60°05′N 19°56′E / 60.083°N 19.933°E / 60.083; 19.933 Międzyzdroje Poland 15th century 0 0 0 5,436 53°55′N 14°27′E / 53.917°N 14.450°E / 53.917; 14.450 Naantali Finland 1443 0 0 19,124 60°28′N 22°01′E / 60.467°N 22.017°E / 60.467; 22.017 Narva-Jõesuu Estonia 14th century 0 0 2,870 59°28′N 28°03′E / 59.467°N 28.050°E / 59.467; 28.050 Norrköping Sweden 1384 0 0 137,326 58°36′N 16°12′E / 58.600°N 16.200°E / 58.600; 16.200 Nowe Warpno Poland 1352 0 0 0 1,170 53°43′N 14°17′E / 53.717°N 14.283°E / 53.717; 14.283 Nyköping Sweden 1444 0 0 29,891 58°45′N 17°00′E / 58.750°N 17.000°E / 58.750; 17.000 Nykøbing Falster Denmark 1150s 0 0 19,300 54°46′N 11°53′E / 54.767°N 11.883°E / 54.767; 11.883 Oskarshamn Sweden 1856 0 0 17,258 57°15′N 16°27′E / 57.250°N 16.450°E / 57.250; 16.450 Oulu Finland 1605 0 201,124 65°00′N 25°28′E / 65.000°N 25.467°E / 65.000; 25.467 Palanga Lithuania 1791 0 0 15,474 56°56′N 24°06′E / 56.933°N 24.100°E / 56.933; 24.100 Pori Finland 1558 0 0 84,779 61°29′N 21°47′E / 61.483°N 21.783°E / 61.483; 21.783 Porvoo Finland 1380 0 0 50,203 60°23′N 25°39′E / 60.383°N 25.650°E / 60.383; 25.650 Primorsk Russia 1268 0 0 6,119 60°22′N 28°38′E / 60.367°N 28.633°E / 60.367; 28.633 Pärnu Estonia 1251 0 0 51,739 58°23′N 24°30′E / 58.383°N 24.500°E / 58.383; 24.500 Raahe Finland 1649 0 0 25,068 64°41′N 24°28′E / 64.683°N 24.467°E / 64.683; 24.467 Rauma Finland 1442 0 0 39,612 61°08′N 21°30′E / 61.133°N 21.500°E / 61.133; 21.500 Riga Latvia 1201 0 641,423 56°56′N 24°06′E / 56.933°N 24.100°E / 56.933; 24.100 Rostock Germany 1218 0 207,513 54°5′N 12°8′E / 54.083°N 12.133°E / 54.083; 12.133 Rønne Denmark 14th century 0 0 13,579 54°46′N 11°53′E / 54.767°N 11.883°E / 54.767; 11.883 Saint Petersburg Russia 1703 5,323,300 59°57′N 30°19′E / 59.950°N 30.317°E / 59.950; 30.317 Sassnitz Germany 1957 (1906) 0 0 9,485 54°31′N 13°38′E / 54.517°N 13.633°E / 54.517; 13.633 Saulkrasti Latvia 1823 0 0 3,341 57°15′N 24°25′E / 57.250°N 24.417°E / 57.250; 24.417 Sestroretsk Russia 1714 0 0 37,248 60°06′N 29°57′E / 60.100°N 29.950°E / 60.100; 29.950 Sillamäe Estonia 1502 0 0 13,666 59°24′N 27°45′E / 59.400°N 27.750°E / 59.400; 27.750 Skellefteå Sweden 1845 0 0 32,775 64°45′N 20°57′E / 64.750°N 20.950°E / 64.750; 20.950 Słupsk Poland 1265 0 0 93,706 54°27′N 17°1′E / 54.450°N 17.017°E / 54.450; 17.017 Sopot Poland 1901 0 0 37,089 54°26′N 18°33′E / 54.433°N 18.550°E / 54.433; 18.550 Sosnovy Bor Russia 1958 0 0 65,788 59°53′N 29°05′E / 59.883°N 29.083°E / 59.883; 29.083 Stockholm Sweden 1252 1,538,517 59°21′N 18°04′E / 59.350°N 18.067°E / 59.350; 18.067 Stralsund Germany 1234 0 0 59,101 54°18′N 13°5′E / 54.300°N 13.083°E / 54.300; 13.083 Sundsvall Sweden 1621 0 0 51,354 62°24′N 17°19′E / 62.400°N 17.317°E / 62.400; 17.317 Szczecin Poland 1243 0 405,657 53°25′N 14°33′E / 53.417°N 14.550°E / 53.417; 14.550 Świnoujście Poland 1765 0 0 41,516 53°55′N 14°15′E / 53.917°N 14.250°E / 53.917; 14.250 Tallinn Estonia 1154 0 449,160 59°26′N 24°44′E / 59.433°N 24.733°E / 59.433; 24.733 Tornio Finland 1621 0 0 21,939 65°50′N 24°08′E / 65.833°N 24.133°E / 65.833; 24.133 Trzebiatów Poland 1277 0 0 10,196 54°3′N 15°16′E / 54.050°N 15.267°E / 54.050; 15.267 Turku Finland 1229 0 188,584 60°27′N 22°16′E / 60.450°N 22.267°E / 60.450; 22.267 Ueckermünde Germany 1178 0 0 0 8,696 53°44′N 14°02′E / 53.733°N 14.033°E / 53.733; 14.033 Umeå Sweden 1622 0 0 121,032 63°50′N 20°15′E / 63.833°N 20.250°E / 63.833; 20.250 Usedom Germany 1292 0 0 0 1,810 53°52′N 13°55′E / 53.867°N 13.917°E / 53.867; 13.917 Ustka Poland 13th century 0 0 15,973 54°35′N 16°51′E / 54.583°N 16.850°E / 54.583; 16.850 Uusikaupunki Finland 1617 0 0 15,777 60°48′N 21°25′E / 60.800°N 21.417°E / 60.800; 21.417 Vaasa Finland 1606 0 0 66,876 63°05′N 21°36′E / 63.083°N 21.600°E / 63.083; 21.600 Ventspils Latvia 1378 0 0 39,286 57°23′N 21°33′E / 57.383°N 21.550°E / 57.383; 21.550 Visby Sweden 0 8970 0 23,576 57°38′N 18°17′E / 57.633°N 18.283°E / 57.633; 18.283 Vyborg Russia 1293 0 0 79,962 59°57′N 30°19′E / 59.950°N 30.317°E / 59.950; 30.317 Wismar Germany 1229 0 0 42,557 53°54′N 11°28′E / 53.900°N 11.467°E / 53.900; 11.467 Wolgast Germany 1282 0 0 12,172 54°03′N 13°46′E / 54.050°N 13.767°E / 54.050; 13.767 Wolin Poland 1260 0 0 0 4,878 53°50′N 14°36′E / 53.833°N 14.600°E / 53.833; 14.600 Ystad Sweden 1244 0 0 28,985 55°25′N 13°50′E / 55.417°N 13.833°E / 55.417; 13.833 Örnsköldsvik Sweden 1842 0 0 32,107 63°17′N 18°42′E / 63.283°N 18.700°E / 63.283; 18.700