The Key West vs San Juan debate comes down to more than just price tags. While San Juan offers lower costs across most categories (72% cheaper overall), Key West brings advantages in job market depth and earning potential. We've analyzed cost data across every category in our database to give you the complete picture — including who actually benefits from each city's strengths.
San Juan is the more affordable choice between Key West and San Juan, with a 72% lower overall cost index. San Juan has the recurring monthly cost edge at roughly $6,292/mo, while Key West has the stronger salary-side advantage.
This comparison separates lower living costs from higher salary potential so a move decision does not over-credit one number. Use the cards below to see the main trade-offs before going into the full category table.
San Juan is ahead on recurring modeled costs, or about $75,504/yr.
Key West wins 10 total categories; San Juan wins 52. Salary categories are judged by higher pay.
ACS median household income differs by about $58,475 between the two cities.
ACS median gross rent is separated by about $1,608/mo.
Overall Cost of Living Comparison
| Category | Key West | San Juan | Difference |
|---|---|---|---|
| Overall | F | A | San Juan +27pts |
| Housing | F | A+ | San Juan +46pts |
| Food | D | A | San Juan +25pts |
| Healthcare | D | A | San Juan +22pts |
| Transportation | D | B+ | San Juan +24pts |
| Utilities | D | B+ | San Juan +22pts |
Rent, Food, and Utility Differences
Housing
Housing costs are primarily driven by local real estate markets and land values.
Food & Groceries
Food & Groceries costs are primarily driven by local supply chains and regional agriculture.
Healthcare
Healthcare costs are primarily driven by local provider networks and state regulations.
Transportation
Transportation costs are primarily driven by local public transit availability and fuel costs.
Utilities
Utilities costs are primarily driven by local energy sources and climate demands.
Services
Services costs are primarily driven by local labor markets and demand density.
Key Cost Comparisons
Cost of Living
Home Services
Business Startup Costs
Insurance
Legal Services
Salaries & Jobs
Which City Gives You More Buying Power?
The "better" city depends on your situation. Here's how different profiles stack up:
Remote Worker
→ San JuanIf your salary doesn't depend on location, San Juan's 72% lower costs translate directly into more savings or disposable income. Your paycheck goes further without a pay cut.
Young Professional
→ Key WestKey West's higher costs often come with a stronger job market and faster career progression. The salary premium in competitive industries can offset the higher expenses.
Family with Kids
→ San JuanFamilies face multiplied costs — housing, groceries, healthcare, and transportation all scale with household size. San Juan's 72% advantage compounds across every budget category.
Small Business Owner
→ San JuanLower operating costs in San Juan mean lower break-even points. Rent, utilities, insurance, and labor all come in cheaper, giving new businesses more runway to reach profitability.
Retiree
→ San JuanOn a fixed income, every percentage point matters. San Juan's lower healthcare, housing, and everyday costs help retirement savings last longer.
Salary Equivalent Between Cities
San Juan has the lower overall cost index and wins 52 non-salary cost categories.Key West has the stronger salary edge across 10 salary categories, so wages are shown separately from affordability.
Move Decision Checklist
- Compare rent first: it is usually the biggest swing item between Key West and San Juan.
- Do not mix salary and affordability: use Key West for pay leverage and San Juan for spending power.
- Run the move-shock and salary-needed pages before committing to deposits, movers, or a lease.
Explore Each City
Explore Specific Costs
Dive deeper into specific cost topics for each city:
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Frequently Asked Questions
Should I move from Key West to San Juan?
If your income stays the same or comparable, moving from Key West to San Juan gives you 72% more purchasing power. That said, the decision depends on career opportunities, family ties, lifestyle preferences, and which specific costs matter most to your household. Review the category breakdown above to see which line items shift the most.
How do housing costs compare between Key West and San Juan?
Housing is typically the biggest cost difference between these cities. Key West (index: 155) and San Juan (index: 83) differ by 72% overall, with housing costs often diverging even more than the average. Check the Cost of Living section above for specific figures.
Is Key West or San Juan more affordable in 2026?
San Juan is 72% more affordable than Key West overall. San Juan wins 52 out of 62 cost categories. However, Key West may offer higher salaries in certain industries that can offset higher living costs.
What is the cost of living index for Key West vs San Juan?
Key West's cost of living index is 155; San Juan's is 83. A score of 100 represents the national average. Key West is above average; San Juan is below average. These figures are derived from BLS and Census data.
About This Comparison
Limitations: ACS values are official citywide estimates, while some category costs remain modeled. Actual costs may vary by neighborhood, provider, timing, and household needs. Salary data reflects median full-time employment; contract and freelance rates differ. Last updated: May 2026.