Cost of Living: San Diego, CA vs Sunnyvale, CA (2026)

San Diego

California
197
VS

Sunnyvale

California
341

San Diego is 42% cheaper than Sunnyvale.

$2,223/mo ↓ 27%
Median Rent
$3,065/mo ↑ 38%
$104,321/yr ↓ 43%
Median Income
$181,862/yr ↑ 74%
$848,500 ↓ 53%
Home Value
$1,816,600 ↑ 114%
$2,308/mo ↓ 23%
Owner Costs
$3,016/mo ↑ 31%
1,385,061
Population
153,455

Tax Comparison

13.3%
Income Tax
13.3%
7.25%
State Sales Tax
7.25%
0.71%
Property Tax
0.71%

Affordability

25.6%
rent-to-income
Affordability
20.2%
rent-to-income

Detailed Comparison

When comparing San Diego, CA and Sunnyvale, CA, the overall cost of living indices are 197 and 341 respectively (national median = 100). Rent is $842/month cheaper in San Diego, saving renters about $10,104/year.

Median household income is $77,541/year higher in Sunnyvale. Home values also differ significantly — the median in San Diego is $848,500 compared to $1,816,600 in Sunnyvale.

Both cities share the same state tax structure since they are in California.

Frequently Asked Questions

San Diego vs Sunnyvale — common questions

Is San Diego or Sunnyvale cheaper to live in?
Based on our cost index, San Diego is cheaper to live in with an index of 197 compared to 341 (US average = 100).
What is the rent difference between San Diego and Sunnyvale?
Median rent in San Diego is $2,223/month and in Sunnyvale it's $3,065/month — a difference of $842/month.
Which city has higher income, San Diego or Sunnyvale?
Median household income is $104,321 in San Diego and $181,862 in Sunnyvale. Median household income is $77,541/year higher in Sunnyvale.
How do taxes compare between California and California?
Both cities are in California and share the same state tax rates: 13.3% income tax, 7.25% sales tax, and 0.71% property tax.
Should I move to San Diego or Sunnyvale?
It depends on your priorities. San Diego has a cost index of 197 with median rent of $2,223/mo, while Sunnyvale has a cost index of 341 with rent of $3,065/mo. Consider income potential, tax burden, and lifestyle preferences alongside raw cost data.
View San Diego details → View Sunnyvale details →

More Comparisons

Other cost of living comparisons for San Diego and Sunnyvale

San Diego vs. San Antonio San Diego vs. Dallas San Diego vs. Philadelphia San Diego vs. San Jose San Diego vs. Phoenix San Diego vs. Austin Sunnyvale vs. Springfield Sunnyvale vs. Hollywood Sunnyvale vs. Kansas City Sunnyvale vs. Roseville Sunnyvale vs. Killeen Sunnyvale vs. Charleston