Data Scientist Salary: Chicago, IL vs Seattle, WA
Side-by-side comparison of wages and local price levels for Data Scientists in Chicago, IL and Seattle, WA, based on BLS OEWS May 2025 wage data and BEA regional price parities for 2024.
1Which City Pays More?
Detailed Comparison
| Metric | Chicago, IL | Seattle, WA | Diff |
|---|---|---|---|
| Median Annual Salary | $107,640 | $164,740▲ | -$57,100 |
| 25th Percentile | $84,600 | $108,740▲ | -$24,140 |
| 75th Percentile | $138,210 | $210,370▲ | -$72,160 |
| 90th Percentile | $168,880 | $230,980▲ | -$62,100 |
| Price Level (BEA 2024, US = 100) | 103.6 | 111.1 | -7.5 |
| Median at National-Average Prices | $103,905 | $148,237▲ | -$44,332 |
| Total Employment | 7,940 | 8,370 | -430 |
3Summary Analysis
On paper, Seattle, WA pays $57,100 more (median: $107,640 vs $164,740). BEA's regional price parity is 103.6 in Chicago, IL and 111.1 in Seattle, WA (United States = 100). At national-average prices the medians are $103,905 and $148,237, so Seattle, WA comes out ahead once local prices are counted.
4More Data Scientist City Comparisons
5Reading This Comparison
The $57,100 gap between the two medians is a gap in dollars, not in what those dollars buy. Dividing each median by its area's regional price parity restates it at national-average prices: $103,905 for Chicago and $148,237 for Seattle, a difference of $44,332.
The price levels come from the U.S. Bureau of Economic Analysis, which describes them this way: “Regional price parities (RPPs) measure the differences in price levels across states and metropolitan areas for a given year and are expressed as a percentage of the overall national price level.” The figures used here are the all-items index for each whole metropolitan area (Chicago-Naperville-Elgin, IL-IN; Seattle-Tacoma-Bellevue, WA) and cover prices only, not taxes.
BLS estimates 7,940 Data Scientist jobs in the Chicago area and 8,370 in the Seattle area. For broader context, see our Illinois overview and the full Data Scientist city ranking.
Frequently Asked Questions
Is Data Scientist salary higher in Chicago, IL or Seattle, WA?
Seattle, WA has the higher median wage for Data Scientists ($164,740 per year, against $107,640 in Chicago, IL; BLS OEWS May 2025). Restated at national-average prices using BEA regional price parities, the medians are $103,905 in Chicago, IL and $148,237 in Seattle, WA.
How do prices compare between Chicago, IL and Seattle, WA?
The U.S. Bureau of Economic Analysis puts the 2024 regional price parity at 103.6 for the Chicago-Naperville-Elgin, IL-IN metropolitan area and 111.1 for the Seattle-Tacoma-Bellevue, WA metropolitan area, where the United States is 100. That is 3.6% above the national level for Chicago, IL and 11.1% above the national level for Seattle, WA.
Which city pays Data Scientists more once local prices are counted?
Seattle, WA: at national-average prices its median Data Scientist wage is $148,237, against $103,905 for Chicago, IL. The adjustment divides each median by the area's BEA regional price parity and covers prices only, not taxes.