Fact Based List:

Five Counties with the Most Eligible for Prescription Drug Plans

  1. Los Angeles County, CA - 1,177,260
  2. Cook County, IL - 705,894
  3. Maricopa County, AZ - 492,744
  4. San Diego County, CA - 399,072
  5. Harris County, TX - 387,029

Source: Centers for Medicare & Medicaid Services: PDP State/County Penetration Report- April 2011
Source URL: https://www.cms.gov/home/rsds.asp