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Medicare Beneficiary Characteristics

Information on beneficiaries enrolled in Medicare Parts A & B, Medicare Advantage, and Original Medicare (fee-for-service) is presented for (1) U.S. counties, (2) U.S. states, including Washington, DC, Puerto Rico, and the U.S. Virgin Islands, and (3) hospital referral regions (HRR) and is available for the years 2007-2015. Demographic information including average age of fee-for-service beneficiaries is available for all geographic levels and at the state level additional enrollment information by sex, Medicaid eligibility, and race/ethnicity is available.

The data are available as Excel files.

Inquiries regarding this data can be sent to