Medicare Supplement (Medigap) plans in King County, Washington
Every insurer selling Medigap in King County, with its premium for each plan. Covers Seattle, Bellevue, Kent, Renton, Federal Way, Kirkland, Redmond, Auburn, Sammamish, Shoreline, Burien, and Issaquah.
- Insurers selling here
- 15 of 17
- Lowest open Plan G
- $239/mo
- Lowest open Plan N
- $189/mo
- County seat
- Seattle
- Region
- Puget Sound
15 insurers sell Medicare Supplement insurance in King County, out of 17 approved in Washington. Residents of Seattle, Bellevue, Kent, Renton, Federal Way, Kirkland, Redmond, Auburn, Sammamish, Shoreline, Burien, and Issaquah choose from the same list, at the same premiums anyone else in the state pays for that insurer's plan. The lowest Plan G premium open to any King County resident 65 or older is $239 a month from First Health Life & Health. The lowest Plan N is $189 from First Health Life & Health. High-deductible Plan G starts at $48 a month here, if you can cover the first $2,950 of costs in a bad year.
King County is one of the 22 counties where Regence BlueShield sells Medigap, including its low-premium Plan K at $121. Asuris Northwest Health does not sell here. Premera Blue Cross sells here, with Plan G at $286. For the WSHIP Medicare Supplement plan, King County counts as having a reasonable choice of Medicare Advantage plans, which narrows who can use WSHIP here. See if you're turned down for Medigap.
Medicare Supplement Plan G, monthly premium, King County
Insurers that sell in King County. Age 65+, bank draft. OIC chart current as of October 8, 2026.
Every plan and insurer in King County
| Insurer selling in King County | A | B | D | G | HD-G | K | L | N | C | F | HD-F |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Bankers Reserve Life | $234 | – | – | $257 | – | – | – | $194 | – | $336 | – |
| First Health Life & Health | $175 | $215 | – | $239 | – | – | – | $189 | – | $257 | – |
| GPM Health & Life | $375 | – | – | $466 | – | – | – | $239 | – | $514 | – |
| HumanaDental | $204 | – | – | $330 | $66 | – | – | $267 | – | $424 | $67 |
| Insurance Company of North America | $255 | – | – | $257 | $65 | – | – | $191 | – | $329 | – |
| Medco Containment Life | $259 | – | – | $311 | – | – | – | $226 | – | $377 | $93 |
| Premera | $240 | – | – | $286 | $71 | – | – | $215 | $328 | – | – |
| Regence BlueShield | $282 | – | – | $317 | – | $121 | – | $244 | $395 | $401 | – |
| State Farm | $252 | – | $309 | $310 | – | – | – | $239 | $409 | $413 | – |
| USAA | $155 | – | – | $309 | – | – | – | $194 | – | $343 | – |
| United American | $190 | $284 | $305 | $293 | $48 | – | – | $242 | $320 | $356 | $48 |
| United World Life (Mutual of Omaha) | $208 | – | – | $379 | $61 | – | – | $265 | – | $501 | – |
| UnitedHealthcare (AARP) | $225 | $332 | – | $324 | – | $103 | $228 | $265 | $390 | $392 | – |
| Washington National | $241 | – | – | $274 | $68 | – | – | $192 | – | $396 | – |
| WA Health Care Authority Premera Plan G | – | – | – | $233 | – | – | – | – | – | – | – |
Medicare Supplement Plan N, monthly premium, King County
Plan N trades office and ER copays for a lower premium.
Largest towns
| Town | Population (2024) |
|---|---|
| Seattle | 780,995 |
| Bellevue | 154,377 |
| Kent | 136,588 |
| Renton | 105,543 |
| Federal Way | 100,252 |
| Kirkland | 95,499 |
Hospitals in King County
| Hospital | – | Type | CMS overall rating |
|---|---|---|---|
| EvergreenHealth Medical Center Kirkland | under 1 mi | Acute care | 5 of 5 stars |
| Harborview Medical Center Seattle | under 1 mi | Acute care | 2 of 5 stars |
| Highline Medical Center Burien | under 1 mi | Acute care | 4 of 5 stars |
| Kaiser Permanente Central Hospital Seattle | under 1 mi | Acute care | not rated |
| MultiCare Auburn Medical Center Auburn | under 1 mi | Acute care | 2 of 5 stars |
| MultiCare Covington Medical Center Covington | under 1 mi | Acute care | 3 of 5 stars |
| Overlake Hospital Medical Center & Clinics Bellevue | under 1 mi | Acute care | 2 of 5 stars |
| Snoqualmie Valley Hospital Snoqualmie | under 1 mi | Critical access | not rated |
| St. Elizabeth Hospital Enumclaw | under 1 mi | Critical access | 5 of 5 stars |
| St. Francis Community Hospital Federal Way | under 1 mi | Acute care | 4 of 5 stars |
| Swedish Issaquah Issaquah | under 1 mi | Acute care | 4 of 5 stars |
| Swedish Medical Center Seattle | under 1 mi | Acute care | 4 of 5 stars |
| Swedish Medical Center / Cherry Hill Seattle | under 1 mi | Acute care | 4 of 5 stars |
| University of Washington Medical Center Seattle | under 1 mi | Acute care | 4 of 5 stars |
| Valley Medical Center Renton | under 1 mi | Acute care | 2 of 5 stars |
| Virginia Mason Medical Center Seattle | under 1 mi | Acute care | 5 of 5 stars |
Doctors in King County
23,431 Medicare clinician listings at King County addresses; 4.3% are marked as sometimes declining Medicare assignment (statewide 4.5%). That's close to the state level.
| Specialty | Clinicians in county |
|---|---|
| Cardiology | 436 |
| Cancer care | 447 |
| Orthopedics | 338 |
| Eye care | 766 |
| Kidney care | 146 |
| Neurology | 453 |
| Lung care | 196 |
| Digestive care | 277 |
| Urology | 174 |
| Dermatology | 212 |
| Diabetes and hormone care | 104 |
| Ear, nose and throat | 158 |
| Physical therapy | 1,816 |
| Mental health | 1,515 |
| Hearing | 0 |
All 60 cities and communities in King County · Plan pages: Plan G, Plan N, High-deductible Plan G, Plan A, Plan K, Plan F
Common questions
What is the cheapest Medigap Plan G in King County?
$239 a month from First Health Life & Health for anyone 65 or older, on the OIC chart current as of October 8, 2026. The state-sponsored HCA group plan lists $233.
Are Medigap premiums higher in King County than in Seattle?
No. Each insurer charges the same premium for a plan everywhere it sells in Washington. Counties differ only in which insurers sell there.
How many Medigap insurers sell in King County?
15. Not available here: Asuris and Regence BlueCross BlueShield of Oregon.
Where can I get free Medicare help in King County?
SHIBA, the state's free Medicare counseling program, takes calls at 1-800-562-6900 and can connect you to a local volunteer.