The Diocese of Juneau is the smallest Diocese in the United States, with a Catholic population of 10,600, and in some ways one of the larger, 53,000 square miles in area. The Cathedral is undoubtedly the smallest in the U.S. The Diocese is located in the Southeastern Panhandle of the State of Alaska and geographically it is strung out along five hundred miles of islands, peninsulas and fjords in an area where the glaciers literally meet the seaThe Diocese of Juneau is the smallest Diocese in the United States, with a Catholic population of 10,600, and in some ways one of the larger, 53,000 square miles in area. The Cathedral is undoubtedly the smallest in the U.S. The Diocese is located in the Southeastern Panhandle of the State of Alaska and geographically it is strung out along five hundred miles of islands, peninsulas and fjords in an area where the glaciers literally meet the sea