- 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 state of Alaska, United States. As of 2010, the population was 88,995. The borough seat is Palmer and the largest city in the borough is Wasilla. The Borough is part of the Anchorage 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