Norway Browse regions with water & wastewater management location pages. Agder 9 cities Innlandet 10 cities Møre og Romsdal 6 cities Nordland 6 cities Oslo 2 cities Rogaland 14 cities Troms og Finnmark 10 cities Trøndelag 9 cities Vestfold og Telemark 14 cities Vestland 13 cities Viken 31 cities