- source: Getty Thesaurus of Geographic Names
- source: Family History Library Catalog
- the text in this section is copied from an article in Wikipedia
Matanuska-Susitna Borough (often referred to as the Mat-Su Borough) is a borough located in the U.S. state of Alaska. As of the 2010 census, the population was 88,995. The borough seat is Palmer, and the largest city is Wasilla.
Matanuska-Susitna Borough is part of the Anchorage, AK Metropolitan Statistical Area.
The Mat-Su Borough is so designated because it contains the entire Matanuska and Susitna Rivers. These rivers empty into Cook Inlet which is the southern border of the Mat-Su Borough. This area is one of the few agricultural areas of Alaska.
- source: Source:Population of States and Counties of the United States: 1790-1990
| Census Year || Population
| 1960 || 5,188
| 1970 || 6,509
| 1980 || 17,816
| 1990 || 39,683