Table of Contents

• How Medigap Works in 2026
• The Huge Price Gap Between States
• What Makes Your Premium Go Up or Down
• Finding the Best Value for Your Situation
• FAQ

Medicare Supplement Costs by State USA 2026

Did you know that you might pay twice as much for the exact same Medicare Supplement plan simply because you live on the other side of a state line? While the benefits of a specific Medigap plan stay the same regardless of where you are, the monthly price you pay is anything but consistent. As we look at the data for 2026, the financial difference between living in a high cost state and a low cost state is more than $190 every single month.

How Medigap Works in 2026

Medigap plans help you pay for the costs that Original Medicare does not cover, like copayments and deductibles. Private insurance companies sell these policies but the federal government requires them to offer standardized benefits, which means Plan G in California has the same coverage as Plan G in Florida.

For 2026, most people find that the nationwide average premium for a 65-year-old is about $189 per month. This number is just a middle point. Many individuals pay much less, while others in expensive cities face bills that are significantly higher.

The Huge Price Gap Between States

Where you choose to live is the biggest factor in your monthly insurance bill. In 2026, New York stands out as the most expensive place for Medigap coverage. If you are 65 and live there, you are likely looking at a monthly cost of around $354.

Then again, if you reside in the South or Southwest, your wallet might feel much heavier. States like South Carolina besides New Mexico offer some of the lowest rates in the country. You can see how the costs vary in this list

• New York
  $354 per month
• Florida
  $320 per month
• California
  $195 per month
• South Carolina
  $160 per month
• New Mexico
  $160 per month

What Makes Your Premium Go Up or Down

Insurance companies use multiple methods to set your prices - Some states use "community rating" where everyone pays the same regardless of age. Others use "attained-age" or "issue-age" ratings, which means your price starts lower but increases as you get older.

Beyond your location and age, the specific plan type you pick changes the price drastically. While some basic plans start near $100 per month, specialized options in certain markets can exceed $3 000 per month. Your health history also matters if you buy a plan outside of your initial enrollment period.

Finding the Best Value for Your Situation

You should compare multiple companies before you sign any paperwork. Since the benefits are identical for each plan letter, the only real difference is the price and how the company treats its customers. Look for companies that have a history of keeping their price increases small over multiple years.

To get the best deal in 2026, consider these steps

• Check if you qualify for a household discount if you live with another adult.
• Enroll during your six month Medigap Open Enrollment Period to avoid health checks.
• Compare Plan G or Plan N, as Plan N often has lower premiums in exchange for small copays.

FAQ

Why is New York so much more expensive than South Carolina?

New York uses specific laws that require insurance companies to accept all applicants regardless of age or health status all year long - this creates a different risk pool for insurers, which leads to higher monthly premiums for everyone compared to states with different rules.

Will my Medigap premium increase every year?

In most states, yes - Many plans use an age based rating system where your premium goes up as you get older. Companies often raise rates annually to keep up with the rising costs of medical care and inflation.

Can I switch plans if I find a cheaper one in another state?

If you move to a new state, you can usually keep your current plan or switch to a local one. If you just want to switch because of price, you might have to answer health questions unless you have a "guaranteed issue right" or live in a state with special switching rules.