Constituting both a municipality and a county of Norway, the city of Oslo is represented in the Storting by twenty Members of Parliament as of 2021.

The Greens wanted the Liberal Party to join the red-green bloc, which did not happen.

This used to be the most powerful political position in Oslo, but following the implementation of parliamentarism, the mayor has had more of a ceremonial role, similar to that of the president of the Storting at the national level.

The post was created with the implementation of parliamentarism in Oslo and is similar to the role of the prime minister at the national level.

Following the latest reform of 1 January 2004, the city is divided into fifteen boroughs (bydeler) that are to a considerable extent self-governed.