Best Cities for Data Scientists in Washington
Ranked by affordability — cost of living, rent, and net income on a $100,000 salary
Washington has 12 metro areas with full cost-of-living data. For data scientists earning around $100,000 annually, Walla Walla stands out as the most affordable option with a cost-of-living index of 77.6 and $67,559 left after taxes and rent. 5 cities in Washington sit below the national average cost of living, giving data scientists more purchasing power per dollar earned. Seattle-Bellevue is the priciest metro at 151.6 on the index, 74 points above Walla Walla.
City Rankings by Affordability
Full Comparison Table
| # | City | COL Index | 2BR Rent/mo |
|---|---|---|---|
| 1 | Walla Walla | 77.6 | $1,550 |
| 2 | Yakima | 80.0 | $1,374 |
| 3 | Kennewick-Richland | 83.2 | $1,538 |
| 4 | Longview-Kelso | 86.4 | $1,451 |
| 5 | Spokane | 93.6 | $1,531 |
| 6 | Wenatchee-East Wenatchee | 97.6 | $1,500 |
| 7 | Bellingham | 109.6 | $1,794 |
| 8 | Mount Vernon-Anacortes | 121.6 | $1,720 |
| 9 | Olympia-Lacey-Tumwater | 125.9 | $1,960 |
| 10 | Bremerton-Silverdale-Port Orchard | 132.7 | $2,031 |
| 11 | Seattle-Bellevue | 151.6 | $2,501 |
| 12 | Tacoma | 151.6 | $1,971 |
Net income = $100,000 salary − federal & Washington state taxes − annual 2BR rent. COL index: national avg = 100.
How We Rank Cities
Cities are ranked by the Bureau of Economic Analysis (BEA) Regional Price Parity index, where 100 equals the national average. A lower score means your money goes further. Net income is calculated using a benchmark $100,000 salary for data scientists who analyze data and build predictive models, after applying 2026 federal and Washington state income tax brackets and subtracting HUD Fair Market Rent for a 2-bedroom apartment. Purchasing power adjusts net income for local price levels.
Frequently Asked Questions
What is the most affordable city in Washington for data scientists?
Walla Walla is the most affordable city in Washington for data scientists, with a cost-of-living index of 77.6 (national average = 100). On a $100,000 salary, you'd have approximately $67,559 after taxes and rent for a 2-bedroom apartment.
How much do data scientists earn in Washington?
Data Scientists in Washington earn around $100,000 per year on average. After federal and state taxes, and typical 2-bedroom rent costs (averaging $20,916 per year across the state), take-home spending money varies significantly by city—making location a critical factor.
How does cost of living vary across Washington cities?
Across 12 metro areas in Washington, the average cost-of-living index is 109 (national average = 100). The most affordable metro is Walla Walla at 77.6, while Seattle-Bellevue is the most expensive at 151.6—a difference of 74 index points.
Other Rankings in Washington
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