Delaware Medicare Supplement Plans

New Castle County carries most of the state's Medicare beneficiaries and most of the carrier competition. Kent and Sussex counties see fewer filed rates, and the beach communities in Sussex add a seasonal population that carriers do not always price for cleanly.

Delaware policies are attained age, so the age schedule is worth reading before you sign. Ask for the rate at 75 alongside the rate today, then ask what the carrier has been approved for since 2020. Very few buyers ask both, and both matter.

Delaware began its birthday window on January 1, 2026: 30 days before your birthday through 30 days after, for a plan with equal or lesser benefits at any carrier. The state also gives Advantage enrollees 65 and older two annual guaranteed-issue periods, October 15 to December 7 and January 1 to March 31, though a carrier may charge more for health under those and can impose a six-month wait on pre-existing conditions.

Delaware honors three federal exceptions: employer coverage ending, a carrier leaving the state, and the first year of an Advantage plan. Delaware is a small market, so a carrier withdrawal is a realistic event rather than a remote one, and those rights are worth knowing before you need them.

Advantage penetration in Delaware runs close to the national average, with heavy marketing in New Castle County. The supplement pool is stable and older, and because the state is small, a resident can usually compare every carrier writing here in a single conversation.

The Delaware Department of Insurance publishes complaint data and rate filings, and SHIP counselors review quotes free of charge. Ask which carriers write in Sussex County specifically if you live at the beach, since availability is not always statewide.