Deerfield is a north shore suburb of Chicago in Lake County, Illinois, United States, approximately 25 miles north of Chicago with a small portion extending into Cook County, Illinois. The population was 18,225 at the 2010 census, a decline of 175 from 2000. Deerfield is home to the headquarters of Walgreens, Baxter Healthcare, Business Technology Partners, Caterpillar Inc., APAC Customer Services, Fortune Brands Home & Security, Takeda Pharmaceutical... Show more

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