Cost of Living Comparison Between Seattle, WA and Portsmouth, NH
For one person, living is cheaper in Portsmouth, NH: $2,763 a month against $3,785 in Seattle, WA, rent and utilities included – about $12,300 less a year. Rent and utilities account for about half of the difference.
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Seattle, WA Living Index184Cost of Living Index in Seattle, WALearn more -
Portsmouth, NH Living Index135Cost of Living Index in Portsmouth, NHLearn more
How much you'll spend in Seattle, WA and in Portsmouth, NH
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 Portsmouth, NH actually costs, broken down by who's living it.
A single person spends $3,785 per month in Seattle, WA vs $2,763 in Portsmouth, NH, rent included.
- Seattle, WA $3,785
- Portsmouth, NH $2,763
A couple spends around $5,688 per month in Seattle, WA vs $4,026 in Portsmouth, NH, rent included.
- Seattle, WA $5,688
- Portsmouth, NH $4,026
A family of three spends $7,592 per month in Seattle, WA vs $5,289 in Portsmouth, NH, rent included.
- Seattle, WA $7,592
- Portsmouth, NH $5,289
Seattle, WA costs about 37% more than Portsmouth, NH, and outside of rent the biggest gap is in groceries.
Both Seattle, WA and Portsmouth, NH sit above the global median – Seattle, WA by 178%, Portsmouth, NH by 103%.
CityCost data is based on AI and user input – minor inaccuracies may occur.
Last update for Seattle, WA: October 26, 2026
Last update for Portsmouth, NH: October 25, 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 $2,508 in Seattle, WA versus $2,145 in Portsmouth, NH. 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 8% 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 $102 in Portsmouth, NH. Groceries tell a different story – $547 in Seattle, WA vs $423 in Portsmouth, NH – so Portsmouth, NH wins on supermarket bills even if dining out costs more.
- Seattle, WA Portsmouth, NH 3,990 km ≈ 5 h nonstop flight
- Seattle, WA
- Portsmouth, NH
Distances are measured in a straight line. Your location is detected approximately.
City Median Internet Speeds Comparison (Updated April 2026)
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