Quick answer
Boston is 38% cheaper than San Diego overall. A $100K salary in Boston is equivalent to $138,000 in San Diego.
Cost of Living Comparison · 2026
Boston vs San Diego Cost of Living (2026)
Side-by-side cost comparison plus a salary calculator to find your equivalent pay in either city.
Overall COL difference
Boston is 38% cheaper
1BR rent difference
-13% (B vs A)
$100K in A = in B
$138,000
Boston vs San Diego: Side-by-Side
1BR median rent
$2,600/mo
$2,250/mo
-13%
2BR median rent
$3,400/mo
$3,000/mo
-12%
Median home price
$720K
$820K
+14%
Avg monthly groceries
$420
$420
+0%
Avg monthly utilities
$160
$130
-19%
State income tax
5%
Up to 13.3%
Boston saves
Walk score
83/100
54/100
Boston better
Transit score
75/100
41/100
Boston better
Salary Equivalency Calculator
How much you need to earn in San Diego to maintain the same standard of living as your current Boston salary — and vice versa.
$60,000
$83,000
$44,000
$80,000
$110,000
$58,000
$100,000
$138,000
$73,000
$120,000
$165,000
$87,000
$150,000
$207,000
$109,000
Calculated using a weighted index: rent (40%), home prices (20%), groceries (20%), utilities (10%), state income tax (10%). Individual lifestyles vary.
Monthly Budget: Boston vs San Diego
Who Each City Is Best For
Boston is best for
- ✓biotech / pharma professionals
- ✓academics / researchers
- ✓healthcare workers
- ✓finance professionals
San Diego is best for
- ✓military families
- ✓biotech workers
- ✓beach lifestyle seekers
- ✓retirees
FAQs
Is Boston or San Diego cheaper to live in?
Boston is 38% cheaper than San Diego overall. Boston 1BR rent ($2,600/mo) vs San Diego ($2,250/mo). Median home price: Boston $720K vs San Diego $820K.
How much salary do I need in San Diego to match $100K in Boston?
$138,000 in San Diego is equivalent to $100,000 in Boston based on cost of living differences. The biggest factors are rent (-13% difference) and state taxes (Boston: 5% vs San Diego: Up to 13.3%).
What is the rent difference between Boston and San Diego?
1BR: Boston $2,600/mo vs San Diego $2,250/mo (-13%). 2BR: Boston $3,400/mo vs San Diego $3,000/mo (-12%).
Does Boston or San Diego have lower taxes?
Boston (MA) has 5% state income tax. San Diego (CA) has Up to 13.3% state income tax. On a $100K salary, the annual tax difference is ~$8,300.