847 Area Code: Waukegan, Illinois

North suburban Chicago is served by the 847 area code, with Waukegan as the directory's anchor city. Waukegan sits along Lake Michigan in northern Illinois near the Wisconsin border, organized around a working harbor and an older industrial waterfront. The 847 footprint runs through Lake County and the broader North Shore corridor, taking in Highland Park, Glenview, Skokie, Evanston, and the cluster of higher-income suburban communities that line the lake north of the city. The code has carried the region's numbers since it was carved out of the original Chicago numbering in the 1990s.

Records linked to 847 numbers in the directory often include Aurora, Belleville, Chicago, and Cicero — Illinois cities outside the 847 footprint. The pattern reflects standard public-record dynamics, with phone numbers porting across Illinois and addresses linked across multiple cities. The directory currently documents 700 distinct prefixes within 847 in detail, a working subset of the prefix population the code carries.

Waukegan's home values come in below the US median, an unusual reading for the broader North Shore corridor where surrounding suburbs carry sharply higher valuations. Median household income runs below the national figure within the city's own limits, while the broader 847 footprint reflects much higher incomes once the wealthier North Shore suburbs are taken into account. The city's population places Waukegan as one of the larger Lake County cities, with a working economy organized around the harbor, healthcare, and a substantial cluster of light manufacturing.