The City and Borough of Juneau is a unified municipality located on the Gastineau Channel in the panhandle of the U.S. state of Alaska. It has been the capital of Alaska since 1906, when the government of the then-Alaska Territory was moved from Sitka.

The municipality unified in 1970 when the city of Juneau merged with the city of Douglas and the surrounding borough to form the current home rule municipality

The area of Juneau is larger than that of Rhode Island and Delaware individually and almost as large as the two states combined. Downtown Juneau is nestled at the base of Mount Juneau and across the channel from Douglas Island. As of the 2000 census, the City and Borough had a population of 30,711. The U.S. Census Bureau's 2008 population estimate for the City and Borough was 30,988 .