The system of public authorities of Saint-Petersburg comprises:
Legislative Assembly of Saint-Petersburg - The highest and unique legislative public authority;
The government of St.-Petersburg - the highest executive board of the government of Saint-Petersburg, headed by the highest official of Saint-Petersburg - the Governor of Saint-Petersburg, and other executive bodies of the government of Saint-Petersburg headed by the Government of Saint-Petersburg, comprising the system of executive bodies of the government of Saint-Petersburg – the Administration of Saint-Petersburg;
The Statutory Court of Saint-Petersburg, magistracy - Judicial bodies of the government.