Washington
Cheapest ACA plans in Seattle, Washington for 2026
Plan year 2026, last refreshed 2026-04-19T08:08:55.462Z.
Seattle is in King County, Washington. 10 carriers sell 2026 ACA plans on Washington Healthplanfinder for residents of King County, and the cheapest Bronze plan a 40-year-old can enroll in starts at $358/month before any subsidy. Carriers are licensed and rated at the county level, so the plans below cover everyone in King County, including Seattle.
Cheapest plans by metal tier
Lowest 2026 monthly premium for a single 40-year-old in Seattle (King County), on-exchange, before any subsidy. Per-age figures derived from the CMS QHP Landscape file using the HHS standardized age-rating curve (45 CFR 147.102).
| Tier | Cheapest age 40 monthly | Plans in King County |
|---|---|---|
| Catastrophic | $250 | 1 |
| Expanded Bronze | $358 | 17 |
| Gold | $456 | 28 |
| Bronze | $534 | 1 |
| Silver | $584 | 16 |
The actual cheapest Bronze plan in Seattle
Community Health Plan of Washington Community Health Plan of Washington Cascade Select Bronze
$358/moFor a family of four (two 40-year-olds and two kids under 14): Community Health Plan of Washington Community Health Plan of Washington Cascade Select Bronze at $1,146/month before subsidies.
Carriers selling 2026 plans in Seattle
10 carriers sell 2026 plans on Washington Healthplanfinder for King County residents. 75 plans total in King County.
| Carrier | On-exchange plans |
|---|---|
| Kaiser Foundation Health Plan of Washington | 10 |
| Coordinated Care Corporation | 9 |
| Premera Blue Cross | 8 |
| UnitedHealthcare of Oregon, Inc. | 8 |
| LifeWise Health Plan of Washington | 7 |
| Regence BlueShield | 6 |
| Community Health Plan of Washington | 4 |
| BridgeSpan Health Company | 4 |
| Molina Healthcare of Washington, Inc. | 4 |
| Wellpoint Washington, Inc. | 3 |
What you'll actually pay in Seattle
Estimated monthly net premium for the cheapest Bronze plan above ($358/mo before subsidy) on Washington Healthplanfinder, after federal APTC. APTC is computed against the King Countybenchmark Silver per 26 USC §36B. Approximate; exact net varies by plan's EHB% and child-rate structure.
Single 40-year-old
| Annual income | FPL % | Federal APTC | Cheapest Bronze net |
|---|---|---|---|
| $25,000 | 160% | $499/mo | $0/mo |
| $40,000 | 256% | $309/mo | $49/mo |
| $60,000 | 383% | $98/mo | $260/mo |
| $100,000 | 639% | — | $358/mo |
Family of 4 (two 40-year-olds, two children)
| Annual income | FPL % | Federal APTC | Cheapest Bronze net |
|---|---|---|---|
| $40,000 | 124% | — | Medicaid likely |
| $80,000 | 249% | $1,345/mo | $0/mo |
| $130,000 | 404% | — | $1,146/mo |
| $200,000 | 622% | — | $1,146/mo |
FPL = Federal Poverty Level. APTC = Advance Premium Tax Credit (the federal subsidy). Off-exchange and Catastrophic plans are not APTC-eligible. Enter your real income on the home page to see plan-specific net premium with the per-plan EHB-percent cap applied.
Frequently asked questions
What is the cheapest ACA plan in Seattle, Washington for 2026?
The cheapest Bronze plan a 40-year-old can enroll in is Community Health Plan of Washington Community Health Plan of Washington Cascade Select Bronze at $358 per month before subsidies. Plans sell through Washington Healthplanfinder. Seattle is in King County, Washington; carriers are licensed and rated at the county level. Data refreshed 2026-04-19T08:08:55.462Z.
How does Seattle's 2026 ACA pricing compare to other Washington cities?
Cheapest Bronze for a 40-year-old in Seattle is $358 per month before subsidies. For comparison: Spokane at $354/mo; Tacoma at $335/mo. Different cities can have different cheapest plans because plans are sold per county and carrier participation varies by jurisdiction.
What makes Washington different from other states when buying ACA coverage?
Two things. Washington requires carriers to offer standardized Cascade Care plans at Bronze, Silver, and Gold; cost-sharing is identical across carriers at the same metal tier, so you compare on price and network alone. Washington also runs Cascade Select, a state-contracted public option that typically prices toward the lower end in most counties.
What is Cascade Care Savings and do I qualify?
Cascade Care Savings is a Washington state premium subsidy that stacks on top of federal APTC. For 2026, households at or below 250% of the Federal Poverty Level enrolled in a Cascade Care Silver or Gold plan get an extra $55 per member per month. Income-eligible but APTC-ineligible enrollees (including undocumented Washingtonians) get $250 per member per month. You must apply for and accept any federal APTC you qualify for.
Is Cascade Select (the public option) available where I live?
Cascade Select covers 37 of Washington's 39 counties for 2026, including all major population centers (King, Pierce, Snohomish, Spokane, Clark, Thurston). The two historical gap counties are Grays Harbor and Lincoln. Three carriers participate: Community Health Plan of Washington, Coordinated Care, and LifeWise.
More Washington pricing
- Statewide Washington pricing and metal tiers
- Full King County pricing
- Spokane pricingcheapest Bronze $354/mo
- Tacoma pricingcheapest Bronze $335/mo
Sources
- Washington Healthplanfinder for SBE enrollment, OEP dates, and Apple Health eligibility.
- WAHBE Cascade Care Savings program for PY2026 $55 / $250 PMPM subsidy amounts and eligibility.
- WA HCA Cascade Select (public option) for public-option carriers, county footprint, and program design.
- WA OIC: 14 carriers approved for 2026 for approved PY2026 plan count and carriers.
Plan year 2026, last refreshed 2026-04-19T08:08:55.462Z. Full pricing pipeline + regulatory references at methodology; ACA terminology in the glossary.