Austin vs San Diego Cost of Living
San Diego is approximately 15.2% more expensive than Austin. See salary equivalence, taxes, and side-by-side breakdown.
Austin, TX
San Diego, CA
| Salary in Austin | Equivalent in San Diego | Difference |
|---|---|---|
| $50,000 | $57,600 | +$7,600 (+15.2%) |
| $75,000 | $86,400 | +$11,400 (+15.2%) |
| $100,000 | $115,200 | +$15,200 (+15.2%) |
| $150,000 | $172,900 | +$22,900 (+15.3%) |
| $200,000 | $230,500 | +$30,500 (+15.3%) |
San Diego costs about 15% more day to day, but Austin has no state income tax while California does — which can reverse the comparison once you look at take-home rather than sticker prices.
Housing does most of the damage
Strip out housing and most US metros cost about the same. Housing is where the difference lives. A one-bedroom runs about $1,400 a month in Austin and $2,400 in San Diego — $1,000 a month apart, or $12,000 a year.
Ownership widens the gap. $480,000 buys the median home in Austin; $900,000 does in San Diego. The down payment alone differs by roughly $84,000, and that is before Texas and California property tax rates diverge.
Taxes the index leaves out
One of these states taxes income and the other does not — California does, Texas does not. At $100,000 the swing is usually $4,000–$8,000 in what actually reaches your account, and no cost-of-living index captures it.
The offset is rarely free, though. States without an income tax usually recover it elsewhere — property tax rates in Texas and sales tax are the usual places to look. If you plan to buy rather than rent, run the property tax number before assuming the no-income-tax state is cheaper.
Work, weather, and what else is different
Austin is a large metro of about 2.5M and growing fast; San Diego is a large metro of about 3.3M and growing steadily.
Both metros have real employment in technology, which matters if you want to move without changing careers — your experience is legible to employers in both. Austin also leans on semiconductors and higher education, with employers like Tesla Gigafactory Texas and Apple. San Diego leans on military/defense and biotech, with US Navy and Qualcomm.
Weather is not a rounding error when you actually live somewhere. Austin: Humid subtropical: January highs near 61°F/lows 40°F, July highs near 97°F/lows 75°F, hot summers with 100+ days above 90°F. San Diego: Mediterranean climate with mild winters near 50°F lows and mild summers with July highs near 76°F, rarely extreme in either direction.
No state income tax, but Texas relies heavily on property tax — effective rates in the Austin metro run roughly 1.8-2.2%, among the highest in the country. Among the most expensive housing markets in the country despite no local income tax; mild year-round climate is a major draw offsetting high housing cost.
Overall cost ratios come from BEA Regional Price Parities. Housing figures track published market data and local tax rates come from the municipalities themselves. How these are compiled and updated.
Related tools
Paycheck calculator — take-home after federal, state and local tax. Salary calculator — hourly and annual conversion. Mortgage calculator — what a home in either metro actually costs monthly. Guide: the true cost of relocating.