Alta is the most populated municipality in Finnmark in Troms og Finnmark county, Norway. The administrative centre of the municipality is the town of Alta. Some of the main villages in the municipality include Kåfjord, Komagfjord, Kvenvik, Langfjordbotn, Leirbotn, Rafsbotn, Talvik, and Tverrelvdalen.
The 3,849-square-kilometre municipality is the 7th largest municipality by area out of the 356 municipalities in Norway. Alta is the 60th most populous municipality in Norway with a population of 20,789. The municipality's population density is 5.7 inhabitants per square kilometre and its population has increased by 11.3% over the last decade.