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

San Diego

California
197
VS

Louisville

Kentucky
74

San Diego is 166% more expensive than Louisville.

$2,223/mo ↑ 108%
Median Rent
$1,069/mo ↓ 52%
$104,321/yr ↑ 61%
Median Income
$64,731/yr ↓ 38%
$848,500 ↑ 283%
Home Value
$221,500 ↓ 74%
$2,308/mo ↑ 106%
Owner Costs
$1,118/mo ↓ 52%
1,385,061
Population
627,210

Tax Comparison

13.3%
Income Tax
4.0%
7.25%
State Sales Tax
6.0%
0.71%
Property Tax
0.83%

Affordability

25.6%
rent-to-income
Affordability
19.8%
rent-to-income

Detailed Comparison

When comparing San Diego, CA and Louisville, KY, the overall cost of living indices are 197 and 74 respectively (national median = 100). Rent is $1,154/month cheaper in Louisville, saving renters about $13,848/year.

Median household income is $39,590/year higher in San Diego. Home values also differ significantly — the median in San Diego is $848,500 compared to $221,500 in Louisville.

Kentucky has a lower income tax rate, making Louisville slightly more tax-friendly.

Frequently Asked Questions

San Diego vs Louisville — common questions

Is San Diego or Louisville cheaper to live in?
Based on our cost index, Louisville is cheaper to live in with an index of 74 compared to 197 (US average = 100).
What is the rent difference between San Diego and Louisville?
Median rent in San Diego is $2,223/month and in Louisville it's $1,069/month — a difference of $1,154/month.
Which city has higher income, San Diego or Louisville?
Median household income is $104,321 in San Diego and $64,731 in Louisville. Median household income is $39,590/year higher in San Diego.
How do taxes compare between California and Kentucky?
California has 13.3% income tax, 7.25% sales tax, and 0.71% property tax. Kentucky has 4.0% income tax, 6.0% sales tax, and 0.83% property tax.
Should I move to San Diego or Louisville?
It depends on your priorities. San Diego has a cost index of 197 with median rent of $2,223/mo, while Louisville has a cost index of 74 with rent of $1,069/mo. Consider income potential, tax burden, and lifestyle preferences alongside raw cost data.
View San Diego details → View Louisville details →

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