San Diego vs Boise
Side-by-side cost of living comparison for 2026
San Diego
Boise
💡 The Verdict
34% cheaper
Boise is 34% more affordable than San Diego. A $75,000 salary in San Diego is equivalent to $49,688 in Boise.
Category-by-Category Breakdown
Index values shown. National average = 100. Lower is cheaper.
💰 Salary Equivalence
To maintain the same standard of living:
See exact take-home pay: California salaries · Idaho salaries
Living in San Diego vs Boise
Housing is typically the biggest factor in any cost-of-living comparison. San Diego has a housing index of 248 while Boise sits at 118 (national average = 100). The median home in San Diego costs $800,000 compared to $420,000 in Boise, a difference of $380,000. Monthly rent follows a similar pattern: $2,500 in San Diego versus $1,400 in Boise.
Groceries and everyday expenses show a notable difference: San Diego scores 107 while Boise scores 99.
Healthcare costs in San Diego (107) are higher than Boise (98). Both are close to the national average.
Median household income in San Diego is $79,646 compared to $60,818 in Boise. When adjusted for cost of living, income goes further in Boise.
Relocating: San Diego vs Boise
If you are considering a move between San Diego (index: 160) and Boise (index: 106), the 34% cost difference has real implications for your budget. Boise is the more affordable option, but the right choice depends on your income, career opportunities, and lifestyle priorities.
Housing budget reality: Using the 28% rule (spending no more than 28% of gross income on housing), the median household in San Diego can afford $1,858/month, while the median household in Boise can afford $1,419/month. With median homes at $800,000 in San Diego versus $420,000 in Boise, the higher-cost city presents significant affordability challenges.
Renting vs buying: At $2,500/month in San Diego and $1,400/month in Boise, renters save significantly in Boise. The rent-to-own ratio in each city determines whether renting or buying offers better value for your situation.
Income adjustment: A $75,000 salary goes significantly further in Boise. Before accepting a job in either city, use the salary equivalence data above to understand what you would need to earn to maintain your current standard of living.
Reading These Numbers: San Diego (160) vs Boise (106)
The cost of living index uses 100 as the national average. San Diego at 160 is 60% above the US average, while Boise at 106 is 6% above average. There is a meaningful cost gap between these two cities that affects day-to-day budgeting.
The 54-point spread between San Diego (160) and Boise (106) is large enough to reshape a household budget entirely, especially for single-income families. The biggest category divergence is housing, where San Diego scores 248 and Boise scores 118. That 130-point gap is the primary driver of the overall cost difference between these two metros. Housing, the largest line item for most households, favors Boise with indices of 118 versus 248. Median home prices of $800,000 in San Diego and $420,000 in Boise underscore this gap.
For renters: With median rents of $2,500/month in San Diego and $1,400/month in Boise, the annual rent difference is approximately $13,200. Over a 5-year period, that compounds to $66,000 in savings by choosing the more affordable city.
For homebuyers: The $380,000 difference in median home prices between San Diego and Boise translates to roughly $22,800 per month in mortgage payments at current rates. Factor this into your budget alongside property taxes and insurance, which also vary by location.
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