🙂Monthly costs for one person with rent: $3,362 in Castro Valley, CA versus $3,661 in Seattle, WA.
🙂Estimated couple costs with rent: $4,228 in Castro Valley, CA versus $5,544 in Seattle, WA.
🙂Monthly costs for a family of three with rent: $5,093 in Castro Valley, CA versus $7,427 in Seattle, WA.
🙂Living in Castro Valley, CA costs roughly 8% less than in Seattle, WA, driven mainly by Groceries & Markets.
📊Both cities are pricier than the global median: Castro Valley, CA151% above, Seattle, WA173% above.
Currency
🍽 Eating Out
Castro Valley, CA
Seattle, WA
Difference
Meal at Budget Restaurant
$21.59$21.59
$25.32$25.32
-14.73%
Three-Course Dinner for Two, Mid-Range
$76.8$76.8
$121$121
-36.64%
Fast Food Meal(McDonalds, etc)
$11.15$11.15
$14.11$14.11
-20.98%
Cappuccino
$5.81$5.81
$5.82$5.82
-0.17%
Coke/Pepsi/Fanta/Sprite(0.33 liter bottle)
$3.00$3.00
$2.98$2.98
0.67%
Water(0.33 liter bottle)
$2.93$2.93
$2.40$2.40
22.08%
Local Beer(0.5 liter draught)
$7.35$7.35
$7.73$7.73
-4.92%
Imported Beer(0.33 liter bottle)
$8.88$8.88
$7.87$7.87
12.83%
🛒 Groceries & Markets
Castro Valley, CA
Seattle, WA
Difference
Milk(1 liter)
$1.27$1.27
$1.34$1.34
-5.22%
White Bread(500g)
$4.49$4.49
$4.91$4.91
-8.55%
Rice(white)(1kg)
$3.05$3.05
$5.14$5.14
-40.66%
Eggs
$4.61$4.61
$6.57$6.57
-29.83%
Local Cheese(1kg)
$11.00$11.00
$24.64$24.64
-55.36%
Chicken Fillets(1kg)
$9.93$9.93
$15.88$15.88
-37.47%
Beef Round Steak(1kg)
$12.73$12.73
$20.14$20.14
-36.79%
Apples(1kg)
$4.65$4.65
$6.27$6.27
-25.84%
Banana(1kg)
$2.74$2.74
$2.86$2.86
-4.20%
Oranges(1kg)
$3.05$3.05
$5.29$5.29
-42.34%
Tomato(1kg)
$4.88$4.88
$6.39$6.39
-23.63%
Potato(1kg)
$2.93$2.93
$3.21$3.21
-8.72%
Onion(1kg)
$3.42$3.42
$3.83$3.83
-10.70%
Lettuce(1 head)
$2.30$2.30
$2.74$2.74
-16.06%
Water(1.5 liter bottle)
$2.66$2.66
$2.58$2.58
3.10%
Cigarettes 20 Pack(Marlboro, Camel)
$11.13$11.13
$11.64$11.64
-4.38%
Wine(Bottle)
$14.79$14.79
$15.77$15.77
-6.21%
Local Beer(0.5 liter bottle)
$1.75$1.75
$2.88$2.88
-39.24%
Imported Beer(0.33 liter bottle)
$2.67$2.67
$4.39$4.39
-39.18%
🚌 Getting Around
Castro Valley, CA
Seattle, WA
Difference
One-way Ticket(Public Transport)
$3.29$3.29
$2.76$2.76
19.20%
Public Transport Monthly Pass(Regular Price)
-
$98.8$98.8
-
Taxi Start(Normal Tariff)
$4.43$4.43
$2.67$2.67
65.92%
Taxi(Normal Tariff)(1km)
$1.96$1.96
$1.70$1.70
15.29%
Taxi 1hour Waiting(Normal Tariff)
$29.48$29.48
$29.74$29.74
-0.87%
Gasoline(1 liter)
$1.25$1.25
$1.14$1.14
9.65%
Midsize Hatchback 1.4l(Volkswagen Golf, Toyota Prius, Honda Civic, etc)
$30.0K$30.0K
$32.9K$32.9K
-8.85%
Compact Sedan 1.6l(Toyota Corolla, Mazda3, Kia K4, Hyundai Elantra, etc)
$27.3K$27.3K
$26.0K$26.0K
5.16%
🧾 Monthly Utilities & Internet
Castro Valley, CA
Seattle, WA
Difference
Utilities for 2 People in 2-bedroom Apartment(Heating, Electricity, Gas, Water, Garbage)(85m2)
$196$196
$268$268
-26.80%
SIM Card Monthly Plan(Calls and 10GB+ Data)
$46.37$46.37
$60.9$60.9
-23.90%
Internet(50+ Mbps, Unlimited Data)
$69.9$69.9
$76.2$76.2
-8.28%
🎉 Sport & Entertainment
Castro Valley, CA
Seattle, WA
Difference
Gym Membership(Monthly)
$43.12$43.12
$78.1$78.1
-44.75%
Tennis Court(1 Hour on Weekend)
-
$40.15$40.15
-
Cinema Ticket
$16.22$16.22
$15.82$15.82
2.53%
🧸 Childcare & Education
Castro Valley, CA
Seattle, WA
Difference
Preschool or Kindergarten, Full Day, Private, 1 Child(Monthly)
$1,566$1,566
$2,252$2,252
-30.48%
International Primary School, 1 Child(Yearly)
$23.7K$23.7K
$29.7K$29.7K
-20.25%
👕👟 Clothing & Footwear
Castro Valley, CA
Seattle, WA
Difference
Jeans(Levis 501 Or Similar)
$56.2$56.2
$70.8$70.8
-20.57%
Summer Dress(H&M, Zara, etc)
$34.78$34.78
$53.1$53.1
-34.55%
Sport Shoes(Adidas, Nike)
$78.4$78.4
$117$117
-33.12%
Men's Leather Business Shoes
$81.6$81.6
$139$139
-41.17%
🏠 Accommodation & Living
Castro Valley, CA
Seattle, WA
Difference
1-bedroom Apartment, City Center(Monthly)
$2,337$2,337
$2,310$2,310
1.17%
1-bedroom Apartment, Outside City Center(Monthly)
$2,066$2,066
$1,849$1,849
11.72%
3-bedroom Apartment, City Center(Monthly)
$2,665$2,665
$4,739$4,739
-43.76%
3-bedroom Apartment, Outside City Center(Monthly)
$2,245$2,245
$3,556$3,556
-36.87%
Buy Apartment in City Center(m2)
$7,628$7,628
$7,775$7,775
-1.88%
Buy Apartment Outside City Center(m2)
$7,405$7,405
$5,351$5,351
38.39%
💵 Salaries & Financials
Castro Valley, CA
Seattle, WA
Difference
Average Monthly Net Salary(After Tax)
$5,676$5,676
$6,575$6,575
-13.68%
20-Year Fixed Mortgage Interest Rate(Annual %)
6.56
6.42
2.18%
CityCost data is based on AI and user input – minor inaccuracies may occur.
Last update for Castro Valley, CA: April 21, 2026
Last update for Seattle, WA: April 21, 2026
Cost Breakdown
🏠A one-bedroom apartment in the center runs $2,337 in Castro Valley, CA and $2,310 in Seattle, WA. Housing cost is often the main lever when comparing two cities.
💰Seattle, WA pays 16% more on average. The extra income cushions the higher costs, though housing choices and lifestyle decide how much of the gap is truly closed.
🛒Dining out: $77 in Castro Valley, CA vs $121 in Seattle, WA for a mid-range dinner for two. Groceries echo the gap at $386 vs $539 per month, with Castro Valley, CA cheaper across the board.
City Median Internet Speeds Comparison (Updated April 2026)
The chart highlights the Precision Threshold for mobile and fixed broadband internet speeds, updated quarterly.
Digital Nomad Cost of Living Index
Castro Valley, CA vs Seattle, WA: Cost of Living - Frequently Asked Questions
What is the total cost difference between living in Castro Valley, CA and Seattle, WA?
Castro Valley, CA and Seattle, WA differ by about 9% in total monthly costs ($3,362 vs $3,661 including rent). Castro Valley, CA is meaningfully more affordable – a gap that matters a lot on a fixed or modest income.
Which city has better-paying jobs?
On paper, Seattle, WA earns 16% less. That's worth factoring in alongside costs, though remote workers earning in a stronger currency may not notice the difference at all.
How do apartment prices compare in Castro Valley, CA and Seattle, WA?
Rent for a central apartment: $2,337 in Castro Valley, CA versus $2,310 in Seattle, WA. Housing is usually the single largest factor when comparing overall living costs between the two.
Which city has cheaper grocery shopping?
Supermarket bills run roughly 40% higher in Seattle, WA. For households that cook at home regularly, that difference adds up over a month.
Which city is more expensive overall: Castro Valley, CA or Seattle, WA?
All in, you'll spend $3,362 per month in Castro Valley, CA versus $3,661 in Seattle, WA – a 9% gap that adds up to real savings over time for anyone picking the cheaper option.
Which city is feasible on a $3,000 budget?
Both cities are expensive relative to $3,000. Castro Valley, CA is the more realistic option, but even there you'll need to be disciplined with housing, food, and fun money.
How does quality of life compare between Castro Valley, CA and Seattle, WA?
Both cities offer a good standard of living with different trade-offs. Neither is objectively better – the right pick depends on what matters most: affordability, career, cultural scene, or climate.
Is Castro Valley, CA or Seattle, WA safer for residents?
Safety-wise, Castro Valley, CA and Seattle, WA are on par. Petty crime is typical for cities this size, and most residents feel comfortable going about their daily routines in either place.
Where should expats move: Castro Valley, CA or Seattle, WA?
Expats usually find Castro Valley, CA gentler on the wallet – expenses run 9% less than in Seattle, WA. Beyond cost, consider language, visa policies, and how big the international community is in each city.
Castro Valley, CA vs other spots: cost of living compared