Salary Comparison

Data Scientist Salary:
London vs Chicago, IL

Side-by-side gross salary, after-tax take-home pay, and purchasing power comparison. Updated June 2026.

London
$99,008
/ year
-31%
difference
Chicago, IL
$144,487
/ year
Bottom line: Chicago wins on all three metrics — higher salary, more take-home pay, and greater purchasing power. How is this calculated? →
Metric
London
Chicago
Median Gross Salary
Annual, before tax
$99,008
$144,487✓ higher
Entry Level
0–2 years experience
$65,691
$93,439✓ higher
Senior Level
8+ years experience
$149,223
$223,424✓ higher
Est. Take-Home Pay
After income tax + FICA
$67,325
$97,917✓ higher
Purchasing Power
Equivalent in median-CoL city
$66,005
$125,641✓ higher
Cost of Living Index
Relative to US median (1.00)
1.50×
1.15×✓ lower
Percentile 10 (Low)
Bottom 10% of earners
$51,896
$93,439✓ higher
Percentile 90 (High)
Top 10% of earners
$117,886
$223,424✓ higher

What if you move from London to Chicago?

Gross salary change
+$45,479
31% increase
Take-home change
+$30,592
per year after tax
Purchasing power change
+$59,636
equivalent real income

Take-home pay is estimated using 2024 US federal tax brackets (single filer) + 7.65% FICA, or a blended international effective rate. Purchasing power converts gross salary to an equivalent in a US median cost-of-living city (index 1.00×). Full methodology →

Salary Range Comparison

London$99,008
P10: $51,896Median: $99,008P90: $117,886
Chicago, IL$144,487
P10: $93,439Median: $144,487P90: $223,424

More Data Scientist salary comparisons

London vs ManchesterLondon vs BirminghamLondon vs EdinburghLondon vs BristolLondon vs LeedsLondon vs GlasgowChicago vs New YorkChicago vs Los AngelesChicago vs HoustonChicago vs PhoenixAll Data Scientist salaries →

Frequently Asked Questions

▶Does a Data Scientist earn more in London or Chicago?

The median Data Scientist salary in London is £78,216/yr compared to $144,487/yr in Chicago, IL. Chicago pays 31% more in gross terms.

▶Is a Data Scientist salary worth more in London or Chicago after cost of living?

After adjusting for local cost of living, your London salary has the purchasing power of $66,005/yr in a median-cost city, vs $125,641/yr for Chicago. Chicago offers stronger real purchasing power.

▶What is the take-home pay for a Data Scientist in London vs Chicago?

After estimated taxes, a Data Scientist in London takes home approximately $67,325/yr, vs $97,917/yr in Chicago, IL. These are estimates based on standard federal tax rates and do not account for state/local taxes or deductions.