Seattle is about 3% more expensive than Boston overall - $100,000 in Boston is worth about $102,648 in Seattle.
Housing costs separate Boston and Seattle more than any other category. The median home in Seattle runs $912,100 versus $710,400 in Boston, a 28% gap that matters whether you’re buying now or saving for a future purchase.
Renters see the same pattern. The typical apartment in Seattle costs $1,998/month versus $2,093/month in Boston. But income matters too: the median household in Boston earns $94,755 and in Seattle earns $121,984. That means rent swallows about 26.5% of median income in Boston and 19.7% in Seattle.
Both cities are similarly sized metros - Boston has 663,972 people and Seattle has 741,440. That means comparable access to jobs, airports, and cultural amenities without the extremes of a mega-city.
Monthly cost breakdown: Boston vs Seattle
These estimates use BLS Consumer Expenditure Survey shares scaled by each city’s cost-of-living index. Housing uses the city’s actual median rent; ownership uses a 6.7%, 30-year mortgage with 10% down on the median home.
| Category | Boston (rent) | Seattle (rent) | Boston (own) | Seattle (own) |
|---|---|---|---|---|
| Housing | $2,093 | $1,998 | $4,126 | $5,297 |
| Transportation | $1,402 | $1,853 | $1,402 | $1,853 |
| Food | $1,103 | $1,457 | $1,103 | $1,457 |
| Healthcare | $692 | $915 | $692 | $915 |
| Other | $2,462 | $3,254 | $2,462 | $3,254 |
| Total | $7,752 | $9,477 | $9,785 | $12,776 |
Scenario: who actually wins?
The Renter
If you rent a median apartment and keep other spending typical, your monthly nut in Seattle is roughly $25,116 per year in rent alone - $1,140 more than in Boston. Add utilities, food, and transport and the annual gap widens. The crossover point: you need to earn about $102,648 in Seattle to match $100,000 in Boston.
The First-Time Buyer
A 10% down payment on the median home costs $91,210 in Seattle versus $71,040 in Boston. On a 30-year fixed mortgage at 6.7%, the monthly P&I difference is roughly $1,171. Over five years, that’s $70,282 in extra (or saved) housing costs.
The Remote Worker
If your salary is locked to a national scale regardless of location, Boston is the obvious win. A $120,000 remote salary in Boston has the purchasing power of about $123,178 in Seattle. The catch: some employers use location-based pay bands, which can erase part of that advantage.
The Family of Four
With two median incomes, a household in Boston earns roughly $142,132 and in Seattle earns $182,976. After housing, the next biggest budget line is usually childcare and education - costs that vary less by city than housing does. The family math usually comes down to: can you afford the home you want on local salaries? In Seattle, that answer is harder.
Boston vs Seattle: the numbers
| Metric | Boston | Seattle | Difference |
|---|---|---|---|
| Cost-of-living index (US=100) | 108 | 111 | +3% |
| Median rent | $2,093 | $1,998 | -5% |
| Median home value | $710,400 | $912,100 | +28% |
| Median household income | $94,755 | $121,984 | +29% |
Cost of living = BEA Regional Price Parities (US average = 100). Rent, home value, and income from the U.S. Census ACS. See our methodology.
What your salary is worth
A $100,000 salary in Boston has the same buying power as about $102,648 in Seattle. Going the other way, $100,000 in Seattle is like $97,420 in Boston.
Use the calculator below to compare any salary between Boston and Seattle.
Job market snapshot: Boston vs Seattle
Highest-paying roles with available data - median salary, not average, to avoid skew from senior outliers.
| Role | Boston | Seattle |
|---|---|---|
| Marketing Manager | - | $169,500 |
| Software Developer | - | $167,030 |
| Data Scientist | - | $135,610 |
| Web Developer | - | $115,560 |
| Registered Nurse | - | $109,700 |
Moving from Boston to Seattle: a practical checklist
Before you pack, run the numbers on these five items:
- Total compensation, not just base salary. Factor in bonuses, stock, 401(k) match, and remote-work stipends.
- Housing math for your situation. Rent vs. buy changes the winner. Use our calculator above to model both.
- State income tax. Boston and Seattle are in different states, so your take-home pay will shift even if your gross salary stays flat. See our paycheck calculator for the exact difference.
- Commute and transportation. Gas, insurance, and tolls vary by metro. Check whether your new commute is longer or shorter.
- Healthcare network coverage. If you have employer-sponsored insurance, confirm your preferred doctors and hospitals are in-network in Seattle.
Run these through our cost-of-living calculator with your actual salary to get a personalized answer.