Last update: Oct 2026

Cost of Living Comparison Between O'Fallon, IL and Seattle, WA

For one person, living is cheaper in O'Fallon, IL: $2,591 a month against $3,782 in Seattle, WA, rent and utilities included – about $14,300 less a year. Rent and utilities account for most of the difference.

125

Cost of Living Index in O'Fallon, IL
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O'Fallon, IL Living Index
184

Cost of Living Index in Seattle, WA
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Seattle, WA Living Index

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O'Fallon, IL

🇺🇸 United States

$2,591

/mo nomad

Seattle, WA

🇺🇸 United States

$3,782

/mo nomad

Monthly Cost of Living

How much you'll spend in O'Fallon, IL 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 O'Fallon, IL and in Seattle, WA actually costs, broken down by who's living it.

A single person spends $2,591 per month in O'Fallon, IL vs $3,782 in Seattle, WA, rent included.

O'Fallon, IL $2,591
Seattle, WA $3,782

A couple spends around $3,785 per month in O'Fallon, IL vs $5,636 in Seattle, WA, rent included.

O'Fallon, IL $3,785
Seattle, WA $5,636

A family of three spends $4,980 per month in O'Fallon, IL vs $7,489 in Seattle, WA, rent included.

O'Fallon, IL $4,980
Seattle, WA $7,489

O'Fallon, IL is about 31% cheaper than Seattle, WA, and outside of rent the biggest gap is in eating out.

Both O'Fallon, IL and Seattle, WA sit above the global median – O'Fallon, IL by 91%, Seattle, WA by 179%.

Meal at Budget Restaurant

$18.28 $18.28

$24.52 $24.52

-25.45%

Three-Course Dinner for Two, Mid-Range

$74.4 $74.4

$98.2 $98.2

-24.27%

Fast Food Meal (McDonalds, etc)

$10.70 $10.70

$14.79 $14.79

-27.65%

Cappuccino

$5.27 $5.27

$6.52 $6.52

-19.17%

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

$2.35 $2.35

$3.23 $3.23

-27.24%

Water (0.33 liter bottle)

$1.66 $1.66

$3.17 $3.17

-47.63%

Local Beer (0.5 liter draught)

$3.79 $3.79

$7.85 $7.85

-51.72%

Imported Beer (0.33 liter bottle)

$5.19 $5.19

$8.03 $8.03

-35.37%

Milk (1 liter)

$1.00 $1.00

$1.21 $1.21

-17.36%

White Bread (500g)

$3.22 $3.22

$5.14 $5.14

-37.35%

Rice (white) (1kg)

$5.61 $5.61

$6.05 $6.05

-7.27%

Eggs

$3.93 $3.93

$4.88 $4.88

-19.47%

Local Cheese (1kg)

$12.06 $12.06

$19.18 $19.18

-37.12%

Chicken Fillets (1kg)

$15.66 $15.66

$18.91 $18.91

-17.19%

Beef Round Steak (1kg)

$16.22 $16.22

$23.31 $23.31

-30.42%

Apples (1kg)

$8.24 $8.24

$5.99 $5.99

37.56%

Banana (1kg)

$2.38 $2.38

$1.93 $1.93

23.32%

Oranges (1kg)

$5.48 $5.48

$5.25 $5.25

4.38%

Tomato (1kg)

$5.13 $5.13

$6.57 $6.57

-21.92%

Potato (1kg)

$4.24 $4.24

$3.62 $3.62

17.13%

Onion (1kg)

$3.36 $3.36

$3.31 $3.31

1.51%

Lettuce (1 head)

$2.01 $2.01

$2.78 $2.78

-27.70%

Water (1.5 liter bottle)

$2.54 $2.54

$2.51 $2.51

1.20%

Cigarettes 20 Pack (Marlboro, Camel)

$8.09 $8.09

$12.18 $12.18

-33.58%

Wine (Bottle)

$14.94 $14.94

$14.83 $14.83

0.74%

Local Beer (0.5 liter bottle)

$2.91 $2.91

$4.22 $4.22

-31.04%

Imported Beer (0.33 liter bottle)

$3.34 $3.34

$5.77 $5.77

-42.11%

One-way Ticket (Public Transport)

$2.14 $2.14

$2.95 $2.95

-27.46%

Public Transport Monthly Pass (Regular Price)

$106 $106

Taxi Start (Normal Tariff)

$3.58 $3.58

$2.65 $2.65

35.09%

Taxi (Normal Tariff) (1km)

$1.59 $1.59

$1.72 $1.72

-7.56%

Taxi 1hour Waiting (Normal Tariff)

$17.65 $17.65

$29.72 $29.72

-40.61%

Gasoline (1 liter)

$1.11 $1.11

$1.49 $1.49

-25.50%

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

$27.8K $27.8K

$35.9K $35.9K

-22.51%

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

$26.2K $26.2K

-0.13%

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

$242 $242

$302 $302

-19.80%

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

$68.6 $68.6

$70.1 $70.1

-2.18%

Internet (50+ Mbps, Unlimited Data)

$75.9 $75.9

$85.3 $85.3

-10.99%

Gym Membership (Monthly)

$41.68 $41.68

$77.8 $77.8

-46.45%

Tennis Court (1 Hour on Weekend)

$34.58 $34.58

Cinema Ticket

$12.60 $12.60

$17.84 $17.84

-29.37%

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

$663 $663

$2,973 $2,973

-77.69%

International Primary School, 1 Child (Yearly)

$12.6K $12.6K

$31.3K $31.3K

-59.76%

Jeans (Levis 501 Or Similar)

$46.51 $46.51

$76.6 $76.6

-39.25%

Summer Dress (H&M, Zara, etc)

$25.04 $25.04

$54.1 $54.1

-53.67%

Sport Shoes (Adidas, Nike)

$57.5 $57.5

$128 $128

-55.12%

Men's Leather Business Shoes

$49.29 $49.29

$164 $164

-69.97%

1-bedroom Apartment, City Center (Monthly)

$1,602 $1,602

$2,445 $2,445

-34.49%

1-bedroom Apartment, Outside City Center (Monthly)

$1,295 $1,295

$1,947 $1,947

-33.50%

3-bedroom Apartment, City Center (Monthly)

$2,473 $2,473

$4,744 $4,744

-47.87%

3-bedroom Apartment, Outside City Center (Monthly)

$2,167 $2,167

$3,469 $3,469

-37.51%

Buy Apartment in City Center (m2)

$2,348 $2,348

$7,367 $7,367

-68.13%

Buy Apartment Outside City Center (m2)

$2,575 $2,575

$5,127 $5,127

-49.78%

Average Monthly Net Salary (After Tax)

$6,506 $6,506

20-Year Fixed Mortgage Interest Rate (Annual %)

6.72

6.89

-2.47%

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

Last update for O'Fallon, IL: October 19, 2026

Last update for Seattle, WA: October 19, 2026

Monthly budget structure

Share of the monthly basket for one person, rent included.

Accommodation & Living

O'Fallon, IL

$1.3K 50%

Seattle, WA

$1.9K 51.5% 50.4% $652

Groceries & Markets

O'Fallon, IL

$456 17.6%

Seattle, WA

$546 14.4% 19.8% $90

Monthly Utilities & Internet

O'Fallon, IL

$387 14.9%

Seattle, WA

$457 12.1% 18.3% $71

Eating Out

O'Fallon, IL

$287 11.1%

Seattle, WA

$400 10.6% 39.3% $113

Clothing & Footwear

O'Fallon, IL

$80 3.1%

Seattle, WA

$190 5% 137% $110

Sport & Entertainment

O'Fallon, IL

$67 2.6%

Seattle, WA

$114 3% 69.7% $47

Getting Around

O'Fallon, IL

$20 * 0.8%

Seattle, WA

$129 3.4% 544% $109

Categories marked with * are only partly priced – their share counts the items that do have prices.

Cost Breakdown

A central one-bedroom costs $1,602 in O'Fallon, IL versus $2,445 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.

A mid-range dinner for two costs $74.0 in O'Fallon, IL versus $98.0 in Seattle, WA. Monthly groceries follow the same trend: $456 vs $546 – making O'Fallon, IL the more affordable choice for daily food spending.

Good to know

🇺🇸 O'Fallon, IL

🇺🇸 Seattle, WA

🕒 Local time

17:51 5:51 PM

15:51 3:51 PM

2 h behind O'Fallon, IL

🌤 Weather

👥 Population

94,074

737,015

💱 Currency

United States Dollar USD $

📈 Exchange rate

1 USD = 0.89 EUR

Exchange rates and currency converter

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Between locations

O'Fallon, IL Seattle, WA 2,790 km ≈ 4 h nonstop flight

From you

O'Fallon, IL
Seattle, WA

Distances are measured in a straight line. Your location is detected approximately.

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

O'Fallon, IL vs Seattle, WA: Cost of Living - Frequently Asked Questions

Yes – Seattle, WA is pricier by about 46%, and outside of rent the gap shows up most in eating out.

For a comfortable life, plan on about $3,886 per month in O'Fallon, IL and $5,673 in Seattle, WA. That covers rent, food, utilities, transport, and enough left over to feel settled – not just surviving.

Rent is clearly cheaper in O'Fallon, IL, especially for central apartments. Housing is actually the single biggest factor behind the overall cost gap between these two cities.

Monthly expenses with rent come to $2,591 in O'Fallon, IL and $3,782 in Seattle, WA. That's a gap of about 46%.

Kindergarten costs $663 per month in O'Fallon, IL and $2,973 in Seattle, WA. For families with young kids, this one expense can tip the scales when choosing between the two cities.

$2,500 is a stretch for both – monthly costs hit $2,591 in O'Fallon, IL and $3,782 in Seattle, WA. You'll need shared housing and careful budgeting no matter which city you pick.

Families tend to lean toward O'Fallon, IL – lower housing and cheaper childcare make a real difference, especially on a single income or when paying for private education.

Both have safer and rougher neighborhoods, but overall safety is comparable to other large cities. Neighborhood choice matters more than the city-level comparison – central, well-trafficked areas feel secure in both.

If budget matters most, go with O'Fallon, IL. If higher salaries, better infrastructure, or specific career opportunities are the priority, Seattle, WA makes more sense. Both are solid long-term options with distinct trade-offs.