Additional
Information: Boroughs are a governmental unit similar to counties in other states of the U.S. Not all of Alaska is divided into boroughs. When an area is not covered by a borough, then the census area has been substituted.
Boroughs and Census Areas further on these related pages:
Alaska Quick Facts Alaska Quick Facts: Business, people, and geography statistics for Alaska boroughs and census areas from the U.S. Census Bureau. (Boroughs and Census Areas) http://quickfacts.census.gov/qfd/states/02000.html