San Diego is about 1% less expensive than Seattle overall - $100,000 in Seattle is worth about $99,326 in San Diego.
Housing costs in San Diego and Seattle are fairly close. The median home in San Diego is $848,500 compared to $912,100 in Seattle - a modest gap that won’t dominate your relocation math.
Renters see the same pattern. The typical apartment in San Diego costs $2,223/month versus $1,998/month in Seattle. But income matters too: the median household in San Diego earns $104,321 and in Seattle earns $121,984. That means rent swallows about 25.6% of median income in San Diego and 19.7% in Seattle.
Scale is another factor. San Diego is a much larger metro (1,385,061 people) compared to Seattle (741,440), which affects job market depth, commute times, and amenities.
Monthly cost breakdown: San Diego 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 | San Diego (rent) | Seattle (rent) | San Diego (own) | Seattle (own) |
|---|---|---|---|---|
| Housing | $2,223 | $1,998 | $4,928 | $5,297 |
| Transportation | $1,595 | $1,853 | $1,595 | $1,853 |
| Food | $1,255 | $1,457 | $1,255 | $1,457 |
| Healthcare | $788 | $915 | $788 | $915 |
| Other | $2,801 | $3,254 | $2,801 | $3,254 |
| Total | $8,662 | $9,477 | $11,367 | $12,776 |
Scenario: who actually wins?
The Renter
If you rent a median apartment and keep other spending typical, your monthly nut in San Diego is roughly $26,676 per year in rent alone - $2,700 more than in Seattle. Add utilities, food, and transport and the annual gap widens. The crossover point: you need to earn about $99,326 in San Diego to match $100,000 in Seattle.
The First-Time Buyer
A 10% down payment on the median home costs $91,210 in San Diego versus $84,850 in Seattle. On a 30-year fixed mortgage at 6.7%, the monthly P&I difference is roughly $369. Over five years, that’s $22,161 in extra (or saved) housing costs.
The Remote Worker
If your salary is locked to a national scale regardless of location, Seattle is the obvious win. A $120,000 remote salary in Seattle has the purchasing power of about $120,814 in San Diego. 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 San Diego earns roughly $156,482 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 San Diego, that answer is harder.
San Diego vs Seattle: the numbers
| Metric | San Diego | Seattle | Difference |
|---|---|---|---|
| Cost-of-living index (US=100) | 112 | 111 | -1% |
| Median rent | $2,223 | $1,998 | -10% |
| Median home value | $848,500 | $912,100 | +8% |
| Median household income | $104,321 | $121,984 | +17% |
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 San Diego has the same buying power as about $99,326 in Seattle. Going the other way, $100,000 in Seattle is like $100,678 in San Diego.
Use the calculator below to compare any salary between San Diego and Seattle.
Job market snapshot: San Diego vs Seattle
Highest-paying roles with available data - median salary, not average, to avoid skew from senior outliers.
| Role | San Diego | Seattle |
|---|---|---|
| Marketing Manager | $169,420 | $169,500 |
| Software Developer | $152,600 | $167,030 |
| Registered Nurse | $132,750 | $109,700 |
| Data Scientist | - | $135,610 |
| Web Developer | - | $115,560 |
| Mechanical Engineer | $122,350 | - |
Moving from San Diego 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. San Diego 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.