Cost of Living in Chicago vs Seattle

When comparing the cost of living in Chicago, IL and Seattle, WA, the data shows a clear difference across all major expense categories. Chicago has a cost index of 118 while Seattle sits at 155 — both measured against the US national average of 100.

The average 1-bedroom apartment in Chicago rents for $1,850/month, compared to $2,400/month in Seattle. That's a 30% difference in housing costs alone — the single largest expense for most households.

Beyond rent, everyday expenses like groceries, utilities, and transportation also vary significantly. Chicago residents spend an average of $390/month on groceries, while Seattle residents spend $420/month. Transportation costs are $105/month in Chicago versus $102/month in Seattle.

In total, the estimated monthly cost of living in Chicago is $2,873, while Seattle comes in at $3,505. Over a full year, that gap amounts to $7,584 — a meaningful figure for anyone planning a relocation or comparing job offers across these two cities.

Based on current cost-of-living data, Chicago is the more affordable option. Living in Chicago costs approximately 22% less per month than Seattle, saving residents around $632/month or $7,584/year.

Housing is typically the biggest driver of this difference. The lower rent in Chicago ($1,850/month) compared to Seattle ($2,400/month) accounts for a significant portion of the overall savings. Utilities and groceries also tend to be lower in Chicago.

That said, cost of living is only one factor in a relocation decision. Job market conditions, salary levels, quality of life, climate, and proximity to family all play important roles. Use the calculator above to personalize these numbers based on your actual spending habits — the default figures are city averages and your individual costs may vary.

For a broader comparison, explore our City vs City Comparison Tool or check the Rent Comparison Tool to see how Chicago and Seattle stack up against other US cities.