California
142.2
Composite, US avg = 100
Relocation Comparison | CA vs WA
Two expensive coastal states with very different tax structures. California has income tax up to 13.3 percent; Washington has no income tax on wages but added a 7 percent capital gains tax in 2022. The Seattle housing premium and high sales tax narrow the gap with the Bay Area. For tech workers, this is one of the most-considered cross-state moves in the country.
California
142.2
Composite, US avg = 100
Washington
110.7
Composite, US avg = 100
Gap
22.2%
Cheaper in Washington overall
Side by side
| Metric | California | Washington | Cheaper |
|---|---|---|---|
| Composite COL index | 142.2 | 110.7 | WA |
| Housing sub-index | 196.5 | 130.2 | WA |
| Median home price | $785,300 | $568,500 | WA |
| Median 2BR rent | $2,120/mo | $1,780/mo | WA |
| Groceries sub-index | 105.1 | 103.5 | WA |
| Utilities sub-index | 113.2 | 82.5 | WA |
| Electricity rate (cents/kWh) | 27.10 | 10.15 | WA |
| Transportation sub-index | 118.9 | 112.8 | TIE |
| Healthcare sub-index | 107.8 | 102.5 | WA |
| State income tax (wages) | 1.0% to 13.3% | None | WA |
| Capital gains tax | Up to 13.3% | 7% above ~$270k threshold | WA |
| Estate tax | None | 10-20% above $2.193M | CA |
| Property tax (effective) | 0.71% | 0.84% | CA |
| State sales tax | 7.25% | 6.50% | CA |
| Median household income | $84,907 | $82,228 | CA |
Sources: BEA Regional Price Parities, C2ER Cost of Living Index, Census ACS 5-year, Tax Foundation, EIA, Washington Department of Revenue, California Franchise Tax Board. See methodology.
Salary equivalency
To match California purchasing power in Washington, you need roughly 78 cents per California dollar at the state level. The Bay Area to Seattle comparison is much closer to a wash on housing; the income tax difference is the main saving.
California $150,000
$116,772
State-level purchasing-power equivalent in Washington.
Plus roughly $10,000-12,000 in income tax saving
California $250,000
$194,620
State-level purchasing-power equivalent in Washington.
Plus roughly $18,000-22,000 in income tax saving
California $400,000
$311,392
State-level purchasing-power equivalent in Washington.
Plus roughly $32,000-38,000 in income tax saving (wages)
Washington wins on
No state income tax on wages. Zero in Washington vs up to 13.3 percent in California. For a senior tech worker earning $300,000 in wages, the saving exceeds $25,000 per year.
Cheap electricity. Washington 10.15 cents/kWh (lowest in the US, hydropower from the Columbia River dam system) vs California 27.10 cents/kWh. For a household using 1,000 kWh/month, that is roughly $2,000 per year saved.
Housing on a state-level basis. Median home Washington $568,500 vs California $785,300. On a metro-vs-metro basis, Seattle is close to but cheaper than the Bay Area; Spokane and Tri-Cities are dramatically cheaper than the Central Valley.
Healthcare and uninsured rate. Washington uninsured rate 5.8 percent vs California 6.8 percent, similar. Washington has expanded Medicaid; the state offers public-option marketplace plans.
State estate tax exposure is similar to CA only for very large estates. Both states matter only for high-net-worth households, but California has no state estate tax at all (federal only).
California wins on
No state estate tax. California has no state estate tax. Washington's kicks in above $2.193 million. For high-net-worth households, this is a major estate-planning consideration.
Property tax under Prop 13. California effective rate 0.71 percent and capped annual assessment increases of 2 percent vs Washington 0.84 percent with annual reassessment to market.
Lower sales tax (state level). California 7.25 percent state vs Washington 6.5 percent state, but combined-rate California Bay Area runs roughly 9.5 percent while combined Seattle hits 10.5+ percent. On a per-purchase basis, Seattle stings more.
No capital gains tax above threshold. California taxes capital gains as ordinary income (up to 13.3 percent), but Washington added a 7 percent capital gains tax in 2022 on net long-term gains above ~$270,000. For equity-heavy compensation, this matters.
Climate variety. California has the most varied climate in the US, including the most mild year-round areas (coastal Southern California). Seattle has roughly 150 days per year of rain (Vancouver, Portland, Seattle are wetter than most US cities).
Decision framework
Move to Washington if: You earn wage-heavy compensation (cash salary rather than concentrated equity vesting events). You can live east of the Cascades (Spokane, Tri-Cities) where housing is dramatically cheaper. You are a senior tech worker willing to absorb similar metro-housing cost in exchange for the no-income-tax structure. You have no California Prop 13-locked assessment to give up.
Stay in California if: You have substantial unrealised capital gains and equity vesting that would face the Washington 7 percent capital gains tax. You are a long-term California homeowner with a Prop 13 assessment well below market (selling triggers capital gains and resets the property-tax base on the next home). You have substantial estate assets that would face the Washington estate tax. You prefer warmer, drier climate.
The Seattle vs Bay Area question is the most-asked of this comparison. The honest answer: Seattle is cheaper than the Bay Area, but not by as much as state-level numbers suggest. For most senior tech workers, the income tax saving is real and meaningful, but the housing cost is similar enough that the relocation rationale is more about lifestyle (climate, density, family proximity) than pure economics.
For dedicated Washington vs Oregon analysis (often the other half of this decision), see our Oregon vs Washington page. For paycheck math, see paycheckcalculatorforcalifornia.com.
Frequently Asked