Saint Petersburg is the second largest city in Russia, politically incorporated as a federal subject (a federal city). It is located on the Neva River at the head of the Gulf of Finland on the Baltic Sea. In 1914 the name of the city was changed from Saint Petersburg to Petrograd in 1924 to Leningrad and in 1991, back to Saint Petersburg.
In Russian literature, informal documents, and discourse, the word "Saint" is usually omitted, leaving "Petersburg". In casual conversation Russians may drop the "burg" as well, referring to it as "Piter".
The area of Saint Petersburg city proper is 605.8 square kilometers (233.9 sq mi). The area of the federal subject is 1,439 square kilometers (556 sq mi), which contains Saint Petersburg proper, nine municipal towns and twenty one municipal settlements. Sources