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: $3,604 in Seattle, WA versus $3,332 in Castro Valley, CA.

Estimated couple costs with rent: $5,549 in Seattle, WA versus $4,146 in Castro Valley, CA.

Monthly costs for a family of three with rent: $7,494 in Seattle, WA versus $4,961 in Castro Valley, CA.

Living in Seattle, WA is roughly 8% more expensive than in Castro Valley, CA, driven mainly by Groceries & Markets.

Both cities are pricier than the global median: Seattle, WA 170% above, Castro Valley, CA 149% above.

Meal at Budget Restaurant

$24.78 $24.78

$22.25 $22.25

11.37%

Three-Course Dinner for Two, Mid-Range

$122 $122

$77.1 $77.1

57.91%

Fast Food Meal (McDonalds, etc)

$14.02 $14.02

$10.78 $10.78

30.06%

Cappuccino

$5.56 $5.56

$5.76 $5.76

-3.47%

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

$3.05 $3.05

$2.98 $2.98

2.35%

Water (0.33 liter bottle)

$2.39 $2.39

$2.95 $2.95

-18.98%

Local Beer (0.5 liter draught)

$7.94 $7.94

$7.29 $7.29

8.92%

Imported Beer (0.33 liter bottle)

$8.09 $8.09

$8.74 $8.74

-7.44%

Milk (1 liter)

$1.38 $1.38

$1.30 $1.30

6.15%

White Bread (500g)

$4.95 $4.95

$4.37 $4.37

13.27%

Rice (white) (1kg)

$5.35 $5.35

$3.20 $3.20

67.19%

Eggs

$6.59 $6.59

$4.82 $4.82

36.72%

Local Cheese (1kg)

$24.87 $24.87

$11.21 $11.21

121.86%

Chicken Fillets (1kg)

$15.92 $15.92

$9.67 $9.67

64.63%

Beef Round Steak (1kg)

$20.21 $20.21

$12.72 $12.72

58.88%

Apples (1kg)

$6.17 $6.17

$4.48 $4.48

37.72%

Banana (1kg)

$2.76 $2.76

$2.60 $2.60

6.15%

Oranges (1kg)

$5.38 $5.38

$3.08 $3.08

74.68%

Tomato (1kg)

$6.52 $6.52

$5.03 $5.03

29.62%

Potato (1kg)

$3.21 $3.21

$2.91 $2.91

10.31%

Onion (1kg)

$3.75 $3.75

$3.57 $3.57

5.04%

Lettuce (1 head)

$2.84 $2.84

$2.29 $2.29

24.02%

Water (1.5 liter bottle)

$2.62 $2.62

$2.59 $2.59

1.16%

Cigarettes 20 Pack (Marlboro, Camel)

$11.69 $11.69

$11.08 $11.08

5.51%

Wine (Bottle)

$15.46 $15.46

$12.90 $12.90

19.84%

Local Beer (0.5 liter bottle)

$2.83 $2.83

$1.76 $1.76

60.80%

Imported Beer (0.33 liter bottle)

$4.25 $4.25

$2.69 $2.69

57.99%

One-way Ticket (Public Transport)

$2.76 $2.76

$3.23 $3.23

-14.55%

Public Transport Monthly Pass (Regular Price)

$97.8 $97.8

Taxi Start (Normal Tariff)

$2.60 $2.60

$4.40 $4.40

-40.91%

Taxi (Normal Tariff) (1km)

$1.65 $1.65

$1.94 $1.94

-14.95%

Taxi 1hour Waiting (Normal Tariff)

$29.77 $29.77

$29.86 $29.86

-0.30%

Gasoline (1 liter)

$1.14 $1.14

$1.21 $1.21

-5.79%

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

$33.1K $33.1K

$29.8K $29.8K

11.23%

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

$25.9K $25.9K

$27.2K $27.2K

-4.54%

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

$270 $270

$201 $201

33.94%

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

$59.7 $59.7

$46.25 $46.25

29.02%

Internet (50+ Mbps, Unlimited Data)

$74.3 $74.3

$71.2 $71.2

4.38%

Gym Membership (Monthly)

$77.7 $77.7

$43.45 $43.45

78.85%

Tennis Court (1 Hour on Weekend)

$41.03 $41.03

Cinema Ticket

$15.78 $15.78

$16.20 $16.20

-2.59%

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

$2,279 $2,279

$1,601 $1,601

42.32%

International Primary School, 1 Child (Yearly)

$29.8K $29.8K

$24.0K $24.0K

24.56%

Jeans (Levis 501 Or Similar)

$69.8 $69.8

$56.6 $56.6

23.40%

Summer Dress (H&M, Zara, etc)

$52.3 $52.3

$35.11 $35.11

48.85%

Sport Shoes (Adidas, Nike)

$117 $117

$77.3 $77.3

51.97%

Men's Leather Business Shoes

$143 $143

$80.5 $80.5

78.30%

1-bedroom Apartment, City Center (Monthly)

$2,332 $2,332

$2,333 $2,333

-0.02%

1-bedroom Apartment, Outside City Center (Monthly)

$1,899 $1,899

$2,031 $2,031

-6.47%

3-bedroom Apartment, City Center (Monthly)

$4,756 $4,756

$2,607 $2,607

82.43%

3-bedroom Apartment, Outside City Center (Monthly)

$3,472 $3,472

$2,217 $2,217

56.62%

Buy Apartment in City Center (m2)

$7,709 $7,709

$2,690 $2,690

186.58%

Buy Apartment Outside City Center (m2)

$4,983 $4,983

$2,403 $2,403

107.38%

Average Monthly Net Salary (After Tax)

$6,641 $6,641

$5,704 $5,704

16.43%

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: July 19, 2026

Last update for Castro Valley, CA: July 19, 2026

Cost Breakdown

A one-bedroom apartment in the center runs $2,332 in Seattle, WA and $2,333 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: $122 in Seattle, WA vs $77.0 in Castro Valley, CA for a mid-range dinner for two. Groceries echo the gap at $541 vs $381 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 8% in total monthly costs ($3,604 vs $3,332 including rent). Castro Valley, CA is meaningfully more affordable – a gap that matters a lot on a fixed or modest income.

Average pay runs 16% higher in Seattle, WA, 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: $2,332 in Seattle, WA versus $2,333 in Castro Valley, CA. Housing is usually the single largest factor when comparing overall living costs between the two.

Supermarket bills run roughly 42% higher in Seattle, WA. For households that cook at home regularly, that difference adds up over a month.

All in, you'll spend $3,604 per month in Seattle, WA versus $3,332 in Castro Valley, CA – a 8% 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 8% less than in Seattle, WA. Beyond cost, consider language, visa policies, and how big the international community is in each city.