State size comparison
compared to
Illinois is about 7 times bigger than Massachusetts.
Massachusetts is approximately 20,306 sq km, while Illinois is approximately 143,961 sq km, making Illinois 609% larger than Massachusetts. Meanwhile, the population of Massachusetts is ~6.5 million people (6.3 million more people live in Illinois).
Tip:
This to-scale comparison of
Massachusetts
vs.
Illinois
uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Illinois vs. Massachusetts
Flip Comparison · See true size
See Illinois on top of Massachusetts
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Quality of Life Comparison · 15 statistics
Make 24.3% more money in Massachusetts
→
Cost of Living Comparison · 7 categories - 2026 data
Massachusetts is 14.1% more expensive than Illinois
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Moving from Illinois to Massachusetts · Cost, visas & climate
Compare cost of living, salary and climate.
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City Size Comparison · See true size
Compare the size of Chicago vs Boston
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