The Matanuska-Susitna Borough is the third largest borough in the state, both physically and in terms of population. At 24,683 square miles, it is about the same size as West Virginia. Only Anchorage and the Fairbanks North Star Borough are more populous. Nine out of ten borough residents live along the road system between Willow and Sutton. Only three of the borough's communities are incorporated - Palmer, Wasilla and Houston.
