A cost of living comparison using tax-adjusted purchasing power data.
San Francisco has the highest cost of living index in our dataset at 194 — 53% above Denver's 127. When you combine that with California's income tax rate (7% effective at mid-range incomes) versus Colorado's 4.4% flat rate, the purchasing power gap becomes one of the most dramatic comparisons available. On a $100,000 salary, your effective purchasing power in San Francisco is equivalent to about $47,900 nationally — in Denver that same salary is worth $75,300. You'd need a $157,000 salary in San Francisco to have the same purchasing power as $100,000 in Denver. This is the core arithmetic behind the SF tech exodus that's been ongoing for years.
| Category | San Francisco | Denver | Difference |
|---|---|---|---|
| Overall COL Index | 194 | 127 | −34.5% |
| Median 1BR Rent | ~$3,400/mo | ~$1,800/mo | −47% |
| Effective Income Tax | 7.0% | 4.4% | −2.6 pp |
At $60,000: in San Francisco, after taxes and the cost of living adjustment, your real purchasing power is equivalent to about $28,800 nationally. In Denver on the same salary it's $45,200 — a difference of $16,400 per year. At $100,000: the gap reaches $27,300 annually ($75,300 Denver vs $47,900 SF). The rent component alone is worth noting: Denver's median one-bedroom runs about $1,800/month versus SF's $3,400, meaning you'd save roughly $19,200 per year just on housing before touching any other expense.
The important caveat for this comparison: SF's tech industry pays some of the highest salaries in the country. If you're currently earning $180k+ in SF because of where you work, moving to Denver and taking a local job at $110k may not represent the same improvement the pure COL comparison implies. Run the math on your specific compensation, not the average salary for your job title.
Remote workers keeping SF-level salaries in Denver come out ahead by a wide margin — this is the clearest possible financial improvement in the dataset. People leaving SF's tech industry for Denver-based roles need to think more carefully: Denver has tech jobs, but not at SF-level compensation. The purchasing power math still often works out, but not by the full margin the headline numbers suggest.
What you'd trade away by leaving San Francisco: one of the most technically sophisticated job markets in the world, a specific culture built around tech innovation, year-round mild weather (SF is actually temperate and not the hot-summer climate people imagine), and proximity to some of the best hiking and skiing in the West. Denver also has good hiking and skiing — arguably easier access to Rockies skiing than SF has to Tahoe — which reduces that particular tradeoff. The lifestyle gap between SF and Denver is smaller than SF vs. Austin or SF vs. Miami for most people.
Denver is not a tech hub at SF's scale, but it has meaningful presence in aerospace and defense, energy, healthcare, financial services, and a growing tech sector. The metro is home to Lockheed Martin, United Launch Alliance, Raytheon, and a cluster of aerospace employers. For engineers in that field, it's a genuine destination. Tech companies — including a number that relocated from California — have expanded Denver offices. Expect lower base salaries than SF in most fields, but with purchasing power adjustment the comparison often favors Denver even when the nominal salary is lower.
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