Seattle is about 8% more expensive than Philadelphia overall - $100,000 in Philadelphia is worth about $108,365 in Seattle.
The housing gap between Philadelphia and Seattle is the headline story. A median home in Seattle costs $912,100 compared to $232,400 in Philadelphia - a 292% difference that shapes everything from your down-payment timeline to your commute radius. For first-time buyers, that translates to a $91,210 down payment in Seattle versus $23,240 in Philadelphia.
Renters see the same pattern. The typical apartment in Seattle costs $1,998/month versus $1,323/month in Philadelphia. But income matters too: the median household in Philadelphia earns $60,698 and in Seattle earns $121,984. That means rent swallows about 26.2% of median income in Philadelphia and 19.7% in Seattle.
Scale is another factor. Philadelphia is a much larger metro (1,582,432 people) compared to Seattle (741,440), which affects job market depth, commute times, and amenities.
Monthly cost breakdown: Philadelphia 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 | Philadelphia (rent) | Seattle (rent) | Philadelphia (own) | Seattle (own) |
|---|---|---|---|---|
| Housing | $1,323 | $1,998 | $1,350 | $5,297 |
| Transportation | $851 | $1,853 | $851 | $1,853 |
| Food | $669 | $1,457 | $669 | $1,457 |
| Healthcare | $420 | $915 | $420 | $915 |
| Other | $1,494 | $3,254 | $1,494 | $3,254 |
| Total | $4,757 | $9,477 | $4,784 | $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 $23,976 per year in rent alone - $8,100 more than in Philadelphia. Add utilities, food, and transport and the annual gap widens. The crossover point: you need to earn about $108,365 in Seattle to match $100,000 in Philadelphia.
The First-Time Buyer
A 10% down payment on the median home costs $91,210 in Seattle versus $23,240 in Philadelphia. On a 30-year fixed mortgage at 6.7%, the monthly P&I difference is roughly $3,947. Over five years, that’s $236,842 in extra (or saved) housing costs.
The Remote Worker
If your salary is locked to a national scale regardless of location, Philadelphia is the obvious win. A $120,000 remote salary in Philadelphia has the purchasing power of about $130,038 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 Philadelphia earns roughly $91,047 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.
Philadelphia vs Seattle: the numbers
| Metric | Philadelphia | Seattle | Difference |
|---|---|---|---|
| Cost-of-living index (US=100) | 103 | 111 | +8% |
| Median rent | $1,323 | $1,998 | +51% |
| Median home value | $232,400 | $912,100 | +292% |
| Median household income | $60,698 | $121,984 | +101% |
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 Philadelphia has the same buying power as about $108,365 in Seattle. Going the other way, $100,000 in Seattle is like $92,280 in Philadelphia.
Use the calculator below to compare any salary between Philadelphia and Seattle.
Job market snapshot: Philadelphia vs Seattle
Highest-paying roles with available data - median salary, not average, to avoid skew from senior outliers.
| Role | Philadelphia | Seattle |
|---|---|---|
| Marketing Manager | $142,330 | $169,500 |
| Software Developer | $127,150 | $167,030 |
| Data Scientist | $106,760 | $135,610 |
| Physical Therapist | $104,670 | - |
| Web Developer | - | $115,560 |
| Mechanical Engineer | $104,520 | - |
| Registered Nurse | - | $109,700 |
Moving from Philadelphia 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. Philadelphia 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.