Geographic Regions and Area Codes in Wisconsin

Wisconsin is divided into five primary geographic regions: Lake Superior Lowland, Northern Highland, Central Plain, Eastern Ridges and Lowlands, and Western Upland. Each of these regions has its own unique characteristics and business opportunities. The state is also divided into several area codes, which are crucial for businesses to understand for local operations:

  • 262: Covers most of the suburbs of Milwaukee and southeastern Wisconsin.
  • 274: A newer area code serving parts of the state.
  • 414: Primarily serves Milwaukee.
  • 608: Covers Madison and most of southwestern Wisconsin.
  • 715: Serves northern Wisconsin.
  • 920: Covers eastern Wisconsin, including Green Bay.