Cost of Living Comparison Between Seattle, WA and Sarnia
For one person, living is cheaper in Sarnia: $2,002 a month against $3,800 in Seattle, WA, rent and utilities included – about $21,600 less a year. Rent and utilities account for most of the difference.
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Seattle, WA Living Index185Cost of Living Index in Seattle, WALearn more -
Sarnia Living Index96Cost of Living Index in SarniaLearn more
How much you'll spend in Seattle, WA and in Sarnia
Real prices from locals and on-the-ground checks – rent, groceries, transit and the daily extras. Here's what a month in Seattle, WA and in Sarnia actually costs, broken down by who's living it.
A single person spends $3,800 per month in Seattle, WA vs $2,002 in Sarnia, rent included.
- Seattle, WA $3,800
- Sarnia $2,002
A couple spends around $5,702 per month in Seattle, WA vs $2,788 in Sarnia, rent included.
- Seattle, WA $5,702
- Sarnia $2,788
A family of three spends $7,603 per month in Seattle, WA vs $3,574 in Sarnia, rent included.
- Seattle, WA $7,603
- Sarnia $3,574
Seattle, WA costs about 90% more than Sarnia, and outside of rent the biggest gap is in groceries.
Both Seattle, WA and Sarnia sit above the global median – Seattle, WA by 182%, Sarnia by 48%.
CityCost data is based on AI and user input – minor inaccuracies may occur.
Last update for Seattle, WA: October 13, 2026
Last update for Sarnia: October 12, 2026
Cost Breakdown
A central one-bedroom costs $2,464 in Seattle, WA versus $1,342 in Sarnia. 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 105% higher in Seattle, WA, 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 $101 in Seattle, WA versus $45.00 in Sarnia. Monthly groceries follow the same trend: $542 vs $310 – making Sarnia the more affordable choice for daily food spending.
- Seattle, WA Sarnia 3,130 km ≈ 4 h 30 min nonstop flight
- Seattle, WA
- Sarnia
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 Seattle, WA and in Sarnia compare overall?
What salary covers living expenses in Seattle, WA compared to Sarnia?
How do rents compare between Seattle, WA and Sarnia?
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Which city is more expensive overall: Seattle, WA or Sarnia?
Which city is more doable on $3,000 per month?
How does quality of life compare between Seattle, WA and Sarnia?
How do I decide between Seattle, WA and Sarnia?
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