Demographics are defined as the physical characteristics of a population. Demographics
  are a tool for describing a population, understanding some basic facts about who makes   up that population as a whole, and how they compare to other populations.

  Hermantown, with a population increase of 19% from 1990 to 2000, is the community in the   Twin Ports with the most rapid population growth. During this same time period, Duluth's   population grew by just 1%, St. Louis County's population increased 1.2% and Proctor's   population decreased by 4.1%. The City of Superior's population increased by just 234   people (0.9%) and the population of Douglas County increased by 3.7%.