There are 15 counties in Norway. The 15 counties are administrative regions that are the first-level administrative divisions of Norway. The counties are further subdivided into 357 municipalities (Norwegian: kommune). The island territories of Svalbard and Jan Mayen are outside the county divisions and they are ruled directly from the national level. The capital city of Oslo is both a county and a municipality.
https://en.wikipedia.org/wiki/Counties_of_Norway