Cost of Living Comparison Between Portsmouth, NH and Seattle, WA
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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Portsmouth, NH Living Index135Cost of Living Index in Portsmouth, NHLearn more -
Seattle, WA Living Index184Cost of Living Index in Seattle, WALearn more
How much you'll spend in Portsmouth, NH and in Seattle, WA
Real prices from locals and on-the-ground checks – rent, groceries, transit and the daily extras. Here's what a month in Portsmouth, NH and in Seattle, WA actually costs, broken down by who's living it.
A single person spends $2,763 per month in Portsmouth, NH vs $3,785 in Seattle, WA, rent included.
- Portsmouth, NH $2,763
- Seattle, WA $3,785
A couple spends around $4,026 per month in Portsmouth, NH vs $5,688 in Seattle, WA, rent included.
- Portsmouth, NH $4,026
- Seattle, WA $5,688
A family of three spends $5,289 per month in Portsmouth, NH vs $7,592 in Seattle, WA, rent included.
- Portsmouth, NH $5,289
- Seattle, WA $7,592
Portsmouth, NH is about 27% cheaper than Seattle, WA, and outside of rent the biggest gap is in groceries.
Both Portsmouth, NH and Seattle, WA sit above the global median – Portsmouth, NH by 103%, Seattle, WA by 178%.
CityCost data is based on AI and user input – minor inaccuracies may occur.
Last update for Portsmouth, NH: October 25, 2026
Last update for Seattle, WA: October 26, 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 $2,145 in Portsmouth, NH versus $2,508 in Seattle, WA. 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 $102 in Portsmouth, NH versus $101 in Seattle, WA. Groceries tell a different story – $423 in Portsmouth, NH vs $547 in Seattle, WA – so Portsmouth, NH wins on supermarket bills even if dining out costs more.
- Portsmouth, NH Seattle, WA 3,990 km ≈ 5 h nonstop flight
- Portsmouth, NH
- Seattle, WA
Distances are measured in a straight line. Your location is detected approximately.
City Median Internet Speeds Comparison (Updated April 2026)
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