🙂Monthly costs for one person with rent: $2,409 in Castle Rock, CO versus $3,598 in Seattle, WA.
🙂Estimated couple costs with rent: $3,517 in Castle Rock, CO versus $5,539 in Seattle, WA.
🙂Monthly costs for a family of three with rent: $4,626 in Castle Rock, CO versus $7,479 in Seattle, WA.
🙂Living in Castle Rock, CO costs roughly 33% less than in Seattle, WA, driven mainly by Groceries & Markets.
📊Both cities are pricier than the global median: Castle Rock, CO80% above, Seattle, WA168% above.
Currency
🍽 Eating Out
Castle Rock, CO
Seattle, WA
Difference
Meal at Budget Restaurant
$14.93$14.93
$24.80$24.80
-39.80%
Three-Course Dinner for Two, Mid-Range
$72.6$72.6
$118$118
-38.36%
Fast Food Meal(McDonalds, etc)
$7.92$7.92
$13.77$13.77
-42.48%
Cappuccino
$4.97$4.97
$5.71$5.71
-12.96%
Coke/Pepsi/Fanta/Sprite(0.33 liter bottle)
$2.01$2.01
$3.05$3.05
-34.10%
Water(0.33 liter bottle)
$1.94$1.94
$2.50$2.50
-22.40%
Local Beer(0.5 liter draught)
$4.85$4.85
$7.83$7.83
-38.06%
Imported Beer(0.33 liter bottle)
$4.96$4.96
$7.88$7.88
-37.06%
🛒 Groceries & Markets
Castle Rock, CO
Seattle, WA
Difference
Milk(1 liter)
$1.00$1.00
$1.35$1.35
-25.93%
White Bread(500g)
$3.03$3.03
$5.06$5.06
-40.12%
Rice(white)(1kg)
$3.31$3.31
$5.39$5.39
-38.59%
Eggs
$4.09$4.09
$6.85$6.85
-40.29%
Local Cheese(1kg)
$10.96$10.96
$25.07$25.07
-56.28%
Chicken Fillets(1kg)
$8.79$8.79
$15.85$15.85
-44.54%
Beef Round Steak(1kg)
$16.29$16.29
$20.59$20.59
-20.88%
Apples(1kg)
$3.81$3.81
$6.14$6.14
-37.95%
Banana(1kg)
$1.40$1.40
$2.82$2.82
-50.35%
Oranges(1kg)
$3.63$3.63
$5.51$5.51
-34.12%
Tomato(1kg)
$5.01$5.01
$6.74$6.74
-25.67%
Potato(1kg)
$2.33$2.33
$3.15$3.15
-26.03%
Onion(1kg)
$1.87$1.87
$3.82$3.82
-51.05%
Lettuce(1 head)
$1.28$1.28
$2.69$2.69
-52.42%
Water(1.5 liter bottle)
$1.94$1.94
$2.64$2.64
-26.52%
Cigarettes 20 Pack(Marlboro, Camel)
$13.22$13.22
$11.65$11.65
13.48%
Wine(Bottle)
$11.88$11.88
$15.69$15.69
-24.28%
Local Beer(0.5 liter bottle)
$2.29$2.29
$2.93$2.93
-21.84%
Imported Beer(0.33 liter bottle)
$2.78$2.78
$4.24$4.24
-34.43%
🚌 Getting Around
Castle Rock, CO
Seattle, WA
Difference
One-way Ticket(Public Transport)
$1.98$1.98
$2.82$2.82
-29.79%
Public Transport Monthly Pass(Regular Price)
-
$100$100
-
Taxi Start(Normal Tariff)
$2.48$2.48
$2.60$2.60
-4.62%
Taxi(Normal Tariff)(1km)
$1.36$1.36
$1.72$1.72
-20.93%
Taxi 1hour Waiting(Normal Tariff)
$25.14$25.14
$30.22$30.22
-16.81%
Gasoline(1 liter)
$0.76$0.76
$1.19$1.19
-36.13%
Midsize Hatchback 1.4l(Volkswagen Golf, Toyota Prius, Honda Civic, etc)
$27.4K$27.4K
$32.7K$32.7K
-16.10%
Compact Sedan 1.6l(Toyota Corolla, Mazda3, Kia K4, Hyundai Elantra, etc)
$25.7K$25.7K
$26.1K$26.1K
-1.56%
🧾 Monthly Utilities & Internet
Castle Rock, CO
Seattle, WA
Difference
Utilities for 2 People in 2-bedroom Apartment(Heating, Electricity, Gas, Water, Garbage)(85m2)
$170$170
$263$263
-35.29%
SIM Card Monthly Plan(Calls and 10GB+ Data)
$40.56$40.56
$60.9$60.9
-33.38%
Internet(50+ Mbps, Unlimited Data)
$44.46$44.46
$75.9$75.9
-41.42%
🎉 Sport & Entertainment
Castle Rock, CO
Seattle, WA
Difference
Gym Membership(Monthly)
$61.2$61.2
$79.6$79.6
-23.16%
Tennis Court(1 Hour on Weekend)
-
$39.89$39.89
-
Cinema Ticket
$8.63$8.63
$16.27$16.27
-46.96%
🧸 Childcare & Education
Castle Rock, CO
Seattle, WA
Difference
Preschool or Kindergarten, Full Day, Private, 1 Child(Monthly)
$1,493$1,493
$2,281$2,281
-34.54%
International Primary School, 1 Child(Yearly)
$18.2K$18.2K
$29.3K$29.3K
-37.87%
👕👟 Clothing & Footwear
Castle Rock, CO
Seattle, WA
Difference
Jeans(Levis 501 Or Similar)
$47.42$47.42
$68.6$68.6
-30.88%
Summer Dress(H&M, Zara, etc)
$50.9$50.9
$52.0$52.0
-2.04%
Sport Shoes(Adidas, Nike)
$66.2$66.2
$116$116
-42.85%
Men's Leather Business Shoes
$108$108
$143$143
-24.90%
🏠 Accommodation & Living
Castle Rock, CO
Seattle, WA
Difference
1-bedroom Apartment, City Center(Monthly)
$1,684$1,684
$2,336$2,336
-27.90%
1-bedroom Apartment, Outside City Center(Monthly)
$1,359$1,359
$1,863$1,863
-27.04%
3-bedroom Apartment, City Center(Monthly)
$2,819$2,819
$4,628$4,628
-39.10%
3-bedroom Apartment, Outside City Center(Monthly)
$2,234$2,234
$3,477$3,477
-35.75%
Buy Apartment in City Center(m2)
-
$7,766$7,766
-
Buy Apartment Outside City Center(m2)
-
$5,232$5,232
-
💵 Salaries & Financials
Castle Rock, CO
Seattle, WA
Difference
Average Monthly Net Salary(After Tax)
$5,816$5,816
$6,617$6,617
-12.11%
20-Year Fixed Mortgage Interest Rate(Annual %)
6.45
6.42
0.47%
CityCost data is based on AI and user input – minor inaccuracies may occur.
Last update for Castle Rock, CO: May 30, 2026
Last update for Seattle, WA: May 30, 2026
Cost Breakdown
🏠A one-bedroom apartment in the center runs $1,684 in Castle Rock, CO and $2,336 in Seattle, WA. Housing cost is often the main lever when comparing two cities.
💰Seattle, WA pays 14% 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: $73.0 in Castle Rock, CO vs $118 in Seattle, WA for a mid-range dinner for two. Groceries echo the gap at $343 vs $547 per month, with Castle Rock, CO 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
Castle Rock, CO vs Seattle, WA: Cost of Living - Frequently Asked Questions
What is the total cost difference between living in Castle Rock, CO and Seattle, WA?
Castle Rock, CO and Seattle, WA differ by about 49% in total monthly costs ($2,409 vs $3,598 including rent). Castle Rock, CO 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 14% 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 Castle Rock, CO and Seattle, WA?
Rent for a central apartment: $1,684 in Castle Rock, CO versus $2,336 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 60% higher in Seattle, WA. For households that cook at home regularly, that difference adds up over a month.
Which city is more expensive overall: Castle Rock, CO or Seattle, WA?
All in, you'll spend $2,409 per month in Castle Rock, CO versus $3,598 in Seattle, WA – a 49% 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. Castle Rock, CO 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 Castle Rock, CO 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 Castle Rock, CO or Seattle, WA safer for residents?
Safety-wise, Castle Rock, CO 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: Castle Rock, CO or Seattle, WA?
Expats usually find Castle Rock, CO gentler on the wallet – expenses run 49% less than in Seattle, WA. Beyond cost, consider language, visa policies, and how big the international community is in each city.
Castle Rock, CO vs other spots: cost of living compared