Washington
Cheapest ACA plans in King County, Washington for 2026
Plan year 2026, last refreshed 2026-04-19T08:08:55.462Z.
King County, Washington has 10 on-exchange carriers offering 63 plans 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.
Cheapest plans by metal tier
Lowest 2026 monthly premium for a single 40-year-old in 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 King County
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 King County
10 carriers sell 2026 plans on Washington Healthplanfinder. 75 plans total in this 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 |
Frequently asked questions
What is the cheapest ACA plan in King County, 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. Data refreshed 2026-04-19T08:08:55.462Z.
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
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. Methodology and full data attribution at about.