Cost of Living Comparison Between Ontario, CA and Chicago, IL
For one person, living is cheaper in Ontario, CA: $2,850 a month against $3,139 in Chicago, IL, rent and utilities included – about $3,500 less a year. Rent and utilities account for most of the difference.
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Ontario, CA Living Index139Cost of Living Index in Ontario, CALearn more -
Chicago, IL Living Index152Cost of Living Index in Chicago, ILLearn more
How much you'll spend in Ontario, CA and in Chicago, IL
Real prices from locals and on-the-ground checks – rent, groceries, transit and the daily extras. Here's what a month in Ontario, CA and in Chicago, IL actually costs, broken down by who's living it.
A single person spends $2,850 per month in Ontario, CA vs $3,139 in Chicago, IL, rent included.
- Ontario, CA $2,850
- Chicago, IL $3,139
A couple spends around $2,929 per month in Ontario, CA vs $4,627 in Chicago, IL, rent included.
- Ontario, CA $2,929
- Chicago, IL $4,627
A family of three spends $3,008 per month in Ontario, CA vs $6,115 in Chicago, IL, rent included.
- Ontario, CA $3,008
- Chicago, IL $6,115
Ontario, CA is about 9% cheaper than Chicago, IL, and outside of rent the biggest gap is in groceries.
Both Ontario, CA and Chicago, IL sit above the global median – Ontario, CA by 110%, Chicago, IL by 132%.
CityCost data is based on AI and user input – minor inaccuracies may occur.
Last update for Ontario, CA: October 18, 2026
Last update for Chicago, IL: October 19, 2026
Categories marked with * are only partly priced – their share counts the items that do have prices.
Categories marked with * are only partly priced – their share counts the items that do have prices.
Cost Breakdown
A central one-bedroom costs $1,878 in Ontario, CA versus $2,446 in Chicago, IL. Rent is usually the largest line item in a monthly budget, so the gap here sets the tone for the overall comparison.
Salaries run about 34% higher in Chicago, IL, which partly offsets the higher cost of living there. Purchasing power depends on which expenses matter most to you.
A mid-range dinner for two costs $77.0 in Ontario, CA versus $90.0 in Chicago, IL. Monthly groceries follow the same trend: $394 vs $449 – making Ontario, CA the more affordable choice for daily food spending.
- Ontario, CA Chicago, IL 2,750 km ≈ 4 h nonstop flight
- Ontario, CA
- Chicago, IL
Distances are measured in a straight line. Your location is detected approximately.
City Median Internet Speeds Comparison (Updated April 2026)
How do living costs in Ontario, CA and in Chicago, IL compare overall?
What salary covers living expenses in Ontario, CA compared to Chicago, IL?
How do rents compare between Ontario, CA and Chicago, IL?
Which city has cheaper grocery shopping?
Which city has cheaper restaurants?
Which city is feasible on a $2,500 budget?
How does quality of life compare between Ontario, CA and Chicago, IL?
How do I decide between Ontario, CA and Chicago, IL?
Ontario, CA vs other spots: cost of living compared
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