Machine Learning Engineer Salary: Seattle, WA vs San Francisco, CA
Side-by-side comparison of salary, taxes, cost of living, and take-home pay for Machine Learning Engineers in Seattle, WA and San Francisco, CA, based on BLS OEWS 2026 data.
1Which City Pays More After Tax?
Detailed Comparison
| Metric | Seattle, WA | San Francisco, CA | Diff |
|---|---|---|---|
| Median Annual Salary | $165,000 | $170,000▲ | -$5,000 |
| 25th Percentile | $127,050 | $130,900▲ | -$3,850 |
| 75th Percentile | $211,200 | $217,600▲ | -$6,400 |
| 90th Percentile | $264,000 | $272,000▲ | -$8,000 |
| Cost of Living Index | 162 | 186 | -24 |
| State Income Tax | 0%▲ | 9.3% | -9.3% |
| COL-Adjusted Median | $101,852▲ | $91,398 | +$10,454 |
| Est. Annual Take-Home | $152,460▲ | $142,472 | +$9,988 |
| COL-Adj. Take-Home | $94,111▲ | $76,598 | +$17,513 |
| Total Employment | 46,400 | 41,600 | +4,800 |
3Summary Analysis
On paper, San Francisco, CA pays $5,000 more (median: $165,000 vs $170,000). However, after adjusting for cost of living (index 162 vs 186), Seattle, WA provides better purchasing power ($101,852 vs $91,398 equivalent). Seattle, WA has no state income tax, which is a significant advantage.
5How to Weigh This Comparison
The $5,000 nominal pay gap between Seattle, WA and San Francisco, CA is the wrong number to focus on in isolation. Cost-of-living indices of 162 and 186 mean the same paycheck stretches very differently in each market. The COL-adjusted figures above — $101,852 in Seattle vs $91,398 in San Francisco— are the closest proxy for "how much will your money actually buy." A meaningful gap of $10,454 on that axis usually beats any nominal salary difference.
Housing is the single biggest driver of cost-of-living differences. In San Francisco, CA, expect housing to consume a larger share of gross income than in Seattle, WA. If you're planning to rent, the COL index is a reasonable proxy for rent differences. If you're buying, expect purchase price differences to be sharper than the composite index suggests — housing tends to be the most inelastic component of cost of living.
Tax treatment matters but is usually smaller than COL impact. The 9.3% state tax rate difference (0% in Washington vs 9.3% in California) translates to roughly $15,810 per year at these salary levels. States with no income tax (Texas, Florida, Washington, Nevada, Tennessee) often offset with higher property tax or sales tax, so factor in your housing and consumption patterns.
Career factors that don't show up in these numbers: total employment (with 46,400 positions in Seattle vs 41,600 in San Francisco, the larger market offers more lateral moves and promotion paths), industry concentration (tech-heavy cities like San Francisco, Seattle, Austin pay premiums for engineering roles but may underpay other occupations), and 3–5 year career trajectory (year-over-year employment growth of 5.1% in Seattle vs 4.3% in San Francisco reveals whether each market is expanding or contracting). For a broader context, see our Washington overview and the full Machine Learning Engineer city ranking.