Area code 847 serves the northern suburbs of Chicago in northeastern Illinois, covering cities such as Evanston, Arlington Heights, Schaumburg, Des Plaines, and Waukegan. This region is known for its mix of affluent residential neighborhoods, thriving corporate offices, and proximity to O’Hare International Airport. Major employers in the 847 area include pharmaceutical companies, financial services, educational institutions, and technology firms. With easy access to downtown Chicago via commuter rail and highways, many residents in this area enjoy suburban living with urban convenience. The area has a high concentration of shopping centers, corporate campuses, and business parks, especially along the I-90 corridor. Area code 847 is overlaid with 224 to support population and business growth, but 847 remains widely recognized and preferred for local prestige. Whether you're a service provider, tech startup, or professional consultant, having a number in 847 establishes presence in one of Illinois’ most economically active regions outside of the city proper.