By Ziv Shay | Updated April 2026
Side-by-side cost of living comparison for 2026
Median Income: $97,185
Population: 737,015
Median Income: $83,454
Population: 1,423,851
When comparing Seattle and San Diego, the overall cost of living is remarkably similar. San Diego carries a cost index of 165 compared to Seattle's 162, meaning your dollar stretches 2% further in Seattle.
Housing is where the most significant gap appears between these two cities. Seattle has a housing index of 195 compared to San Diego's 210. This 15-point difference translates to substantial monthly savings on rent or mortgage payments in Seattle.
Seattle is more affordable for: Housing, Utilities, Taxes.
San Diego is more affordable for: Food & Groceries, Transportation, Healthcare, Entertainment.
If you earn $60,000 in Seattle, you would need $61,111 in San Diego to maintain the same standard of living. For a $100,000 salary, the equivalent would be $101,852.
The median household income in Seattle is $97,185 compared to $83,454 in San Diego. While Seattle has higher incomes, combined with lower costs, residents enjoy greater purchasing power.
Safety: Seattle scores 6/10 while San Diego scores 7/10 in our safety assessment.
Weather: San Diego enjoys better weather with a score of 10/10 versus Seattle's 5/10.
Job Market: Seattle's job market (9/10) is stronger than San Diego's (7/10).
Seattle is the more affordable option overall, but cost is just one factor in deciding where to live. Consider your career opportunities, family needs, and lifestyle preferences alongside the financial comparison. San Diego may justify its higher costs with excellent weather that many residents find worthwhile.
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