Cost of Living Comparison Between Seattle, WA and Castro Valley, CA Cost of Living Comparison Between Seattle, WA and Castro Valley, CA

Monthly Cost of Living

Monthly costs for one person with rent: $3,661 in Seattle, WA versus $3,362 in Castro Valley, CA.

Estimated couple costs with rent: $5,544 in Seattle, WA versus $4,228 in Castro Valley, CA.

Monthly costs for a family of three with rent: $7,427 in Seattle, WA versus $5,093 in Castro Valley, CA.

Living in Seattle, WA is roughly 9% more expensive than Castro Valley, CA, driven mainly by Groceries & Markets.

Both cities are pricier than the global median: Seattle, WA 173% above, Castro Valley, CA 151% above.

Meal at Budget Restaurant

$25.32 $25.32

$21.59 $21.59

17.28%

Three-Course Dinner for Two, Mid-Range

$121 $121

$76.8 $76.8

57.82%

Fast Food Meal (McDonalds, etc)

$14.11 $14.11

$11.15 $11.15

26.55%

Cappuccino

$5.82 $5.82

$5.81 $5.81

0.17%

Coke/Pepsi/Fanta/Sprite (0.33 liter bottle)

$2.98 $2.98

$3.00 $3.00

-0.67%

Water (0.33 liter bottle)

$2.40 $2.40

$2.93 $2.93

-18.09%

Local Beer (0.5 liter draught)

$7.73 $7.73

$7.35 $7.35

5.17%

Imported Beer (0.33 liter bottle)

$7.87 $7.87

$8.88 $8.88

-11.37%

Milk (1 liter)

$1.34 $1.34

$1.27 $1.27

5.51%

White Bread (500g)

$4.91 $4.91

$4.49 $4.49

9.35%

Rice (white) (1kg)

$5.14 $5.14

$3.05 $3.05

68.52%

Eggs

$6.57 $6.57

$4.61 $4.61

42.52%

Local Cheese (1kg)

$24.64 $24.64

$11.00 $11.00

124.00%

Chicken Fillets (1kg)

$15.88 $15.88

$9.93 $9.93

59.92%

Beef Round Steak (1kg)

$20.14 $20.14

$12.73 $12.73

58.21%

Apples (1kg)

$6.27 $6.27

$4.65 $4.65

34.84%

Banana (1kg)

$2.86 $2.86

$2.74 $2.74

4.38%

Oranges (1kg)

$5.29 $5.29

$3.05 $3.05

73.44%

Tomato (1kg)

$6.39 $6.39

$4.88 $4.88

30.94%

Potato (1kg)

$3.21 $3.21

$2.93 $2.93

9.56%

Onion (1kg)

$3.83 $3.83

$3.42 $3.42

11.99%

Lettuce (1 head)

$2.74 $2.74

$2.30 $2.30

19.13%

Water (1.5 liter bottle)

$2.58 $2.58

$2.66 $2.66

-3.01%

Cigarettes 20 Pack (Marlboro, Camel)

$11.64 $11.64

$11.13 $11.13

4.58%

Wine (Bottle)

$15.77 $15.77

$14.79 $14.79

6.63%

Local Beer (0.5 liter bottle)

$2.88 $2.88

$1.75 $1.75

64.57%

Imported Beer (0.33 liter bottle)

$4.39 $4.39

$2.67 $2.67

64.42%

One-way Ticket (Public Transport)

$2.76 $2.76

$3.29 $3.29

-16.11%

Public Transport Monthly Pass (Regular Price)

$98.8 $98.8

Taxi Start (Normal Tariff)

$2.67 $2.67

$4.43 $4.43

-39.73%

Taxi (Normal Tariff) (1km)

$1.70 $1.70

$1.96 $1.96

-13.27%

Taxi 1hour Waiting (Normal Tariff)

$29.74 $29.74

$29.48 $29.48

0.88%

Gasoline (1 liter)

$1.14 $1.14

$1.25 $1.25

-8.80%

Midsize Hatchback 1.4l (Volkswagen Golf, Toyota Prius, Honda Civic, etc)

$32.9K $32.9K

$30.0K $30.0K

9.71%

Compact Sedan 1.6l (Toyota Corolla, Mazda3, Kia K4, Hyundai Elantra, etc)

$26.0K $26.0K

$27.3K $27.3K

-4.90%

Utilities for 2 People in 2-bedroom Apartment (Heating, Electricity, Gas, Water, Garbage) (85m2)

$268 $268

$196 $196

36.62%

SIM Card Monthly Plan (Calls and 10GB+ Data)

$60.9 $60.9

$46.37 $46.37

31.40%

Internet (50+ Mbps, Unlimited Data)

$76.2 $76.2

$69.9 $69.9

9.03%

Gym Membership (Monthly)

$78.1 $78.1

$43.12 $43.12

81.01%

Tennis Court (1 Hour on Weekend)

$40.15 $40.15

Cinema Ticket

$15.82 $15.82

$16.22 $16.22

-2.47%

Preschool or Kindergarten, Full Day, Private, 1 Child (Monthly)

$2,252 $2,252

$1,566 $1,566

43.83%

International Primary School, 1 Child (Yearly)

$29.7K $29.7K

$23.7K $23.7K

25.39%

Jeans (Levis 501 Or Similar)

$70.8 $70.8

$56.2 $56.2

25.90%

Summer Dress (H&M, Zara, etc)

$53.1 $53.1

$34.78 $34.78

52.79%

Sport Shoes (Adidas, Nike)

$117 $117

$78.4 $78.4

49.52%

Men's Leather Business Shoes

$139 $139

$81.6 $81.6

69.98%

1-bedroom Apartment, City Center (Monthly)

$2,310 $2,310

$2,337 $2,337

-1.16%

1-bedroom Apartment, Outside City Center (Monthly)

$1,849 $1,849

$2,066 $2,066

-10.49%

3-bedroom Apartment, City Center (Monthly)

$4,739 $4,739

$2,665 $2,665

77.80%

3-bedroom Apartment, Outside City Center (Monthly)

$3,556 $3,556

$2,245 $2,245

58.39%

Buy Apartment in City Center (m2)

$7,775 $7,775

$7,628 $7,628

1.92%

Buy Apartment Outside City Center (m2)

$5,351 $5,351

$7,405 $7,405

-27.74%

Average Monthly Net Salary (After Tax)

$6,575 $6,575

$5,676 $5,676

15.84%

20-Year Fixed Mortgage Interest Rate (Annual %)

6.42

6.56

-2.13%

CityCost data is based on AI and user input – minor inaccuracies may occur.

Last update for Seattle, WA: April 21, 2026

Last update for Castro Valley, CA: April 21, 2026

Cost Breakdown

A one-bedroom apartment in the center runs $2,310 in Seattle, WA and $2,337 in Castro Valley, CA. 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: $121 in Seattle, WA vs $77 in Castro Valley, CA for a mid-range dinner for two. Groceries echo the gap at $539 vs $386 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

Seattle, WA vs Castro Valley, CA: Cost of Living - Frequently Asked Questions

Seattle, WA and Castro Valley, CA differ by about 9% in total monthly costs ($3,661 vs $3,362 including rent). Castro Valley, CA is meaningfully more affordable – a gap that matters a lot on a fixed or modest income.

Seattle, WA pays 16% more on average, which matters when comparing affordability. Whether that higher income actually nets you more depends on your spending habits and housing choices.

Rent for a central apartment: $2,310 in Seattle, WA versus $2,337 in Castro Valley, CA. Housing is usually the single largest factor when comparing overall living costs between the two.

Supermarket bills run roughly 40% higher in Seattle, WA. For households that cook at home regularly, that difference adds up over a month.

All in, you'll spend $3,661 per month in Seattle, WA versus $3,362 in Castro Valley, CA – a 9% gap that adds up to real savings over time for anyone picking the cheaper option.

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.

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.

Safety-wise, Seattle, WA and Castro Valley, CA are on par. Petty crime is typical for cities this size, and most residents feel comfortable going about their daily routines in either place.

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.