Last update: Oct 2026

Cost of Living Comparison Between O'Fallon, IL and Monterrey

For one person, living is cheaper in Monterrey: $1,599 a month against $2,591 in O'Fallon, IL, rent and utilities included – about $11,900 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
77

Cost of Living Index in Monterrey
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Monterrey Living Index

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O'Fallon, IL

🇺🇸 United States

$2,591

/mo nomad

Monterrey

🇲🇽 Mexico

$1,599

/mo nomad

Monthly Cost of Living

How much you'll spend in O'Fallon, IL and in Monterrey

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 Monterrey actually costs, broken down by who's living it.

Monthly costs for one person with rent: $2,591 in O'Fallon, IL versus $1,599 in Monterrey.

O'Fallon, IL $2,591
Monterrey $1,599

Estimated couple costs with rent: $3,785 in O'Fallon, IL versus $2,493 in Monterrey.

O'Fallon, IL $3,785
Monterrey $2,493

Monthly costs for a family of three with rent: $4,980 in O'Fallon, IL versus $3,387 in Monterrey.

O'Fallon, IL $4,980
Monterrey $3,387

Living in O'Fallon, IL is roughly 62% more expensive than in Monterrey, and outside of rent the biggest gap is in groceries.

Both cities are pricier than the global median: O'Fallon, IL 91% above, Monterrey 18% above.

Meal at Budget Restaurant

$18.28 $18.28

$13.80 MX$255

32.46%

Three-Course Dinner for Two, Mid-Range

$74.4 $74.4

$47.99 MX$887

54.99%

Fast Food Meal (McDonalds, etc)

$10.70 $10.70

$10.65 MX$197

0.47%

Cappuccino

$5.27 $5.27

$3.99 MX$73.7

32.08%

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

$2.35 $2.35

$1.66 MX$30.76

41.57%

Water (0.33 liter bottle)

$1.66 $1.66

$0.99 MX$18.21

67.68%

Local Beer (0.5 liter draught)

$3.79 $3.79

$2.36 MX$43.64

60.59%

Imported Beer (0.33 liter bottle)

$5.19 $5.19

$4.43 MX$81.8

17.16%

Milk (1 liter)

$1.00 $1.00

$1.82 MX$33.58

-45.05%

White Bread (500g)

$3.22 $3.22

$2.83 MX$52.4

13.78%

Rice (white) (1kg)

$5.61 $5.61

$1.92 MX$35.44

192.19%

Eggs

$3.93 $3.93

$2.48 MX$45.78

58.47%

Local Cheese (1kg)

$12.06 $12.06

$11.74 MX$217

2.73%

Chicken Fillets (1kg)

$15.66 $15.66

$9.10 MX$168

72.09%

Beef Round Steak (1kg)

$16.22 $16.22

$12.53 MX$232

29.45%

Apples (1kg)

$8.24 $8.24

$3.34 MX$61.6

146.71%

Banana (1kg)

$2.38 $2.38

$1.57 MX$29.10

51.59%

Oranges (1kg)

$5.48 $5.48

$2.16 MX$39.86

153.70%

Tomato (1kg)

$5.13 $5.13

$2.47 MX$45.65

107.69%

Potato (1kg)

$4.24 $4.24

$2.31 MX$42.64

83.55%

Onion (1kg)

$3.36 $3.36

$2.68 MX$49.47

25.37%

Lettuce (1 head)

$2.01 $2.01

$1.46 MX$26.90

37.67%

Water (1.5 liter bottle)

$2.54 $2.54

$1.19 MX$22.07

113.45%

Cigarettes 20 Pack (Marlboro, Camel)

$8.09 $8.09

$4.75 MX$87.8

70.32%

Wine (Bottle)

$14.94 $14.94

$13.58 MX$251

10.01%

Local Beer (0.5 liter bottle)

$2.91 $2.91

$1.92 MX$35.52

51.56%

Imported Beer (0.33 liter bottle)

$3.34 $3.34

$2.88 MX$53.2

15.97%

One-way Ticket (Public Transport)

$2.14 $2.14

$0.79 MX$14.66

170.89%

Public Transport Monthly Pass (Regular Price)

$31.36 MX$579

Taxi Start (Normal Tariff)

$3.58 $3.58

$1.59 MX$29.44

125.16%

Taxi (Normal Tariff) (1km)

$1.59 $1.59

$1.06 MX$19.58

50.00%

Taxi 1hour Waiting (Normal Tariff)

$17.65 $17.65

$10.80 MX$200

63.43%

Gasoline (1 liter)

$1.11 $1.11

$1.55 MX$28.59

-28.39%

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

$27.8K $27.8K

$24.2K MX$446.4K

15.15%

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

$26.2K $26.2K

$24.3K MX$449.4K

7.78%

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

$242 $242

$117 MX$2,159

107.23%

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

$68.6 $68.6

$26.38 MX$488

160.01%

Internet (50+ Mbps, Unlimited Data)

$75.9 $75.9

$26.04 MX$481

191.47%

Gym Membership (Monthly)

$41.68 $41.68

$30.26 MX$559

37.74%

Tennis Court (1 Hour on Weekend)

$21.25 MX$393

Cinema Ticket

$12.60 $12.60

$5.23 MX$96.6

140.92%

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

$663 $663

$673 MX$12.4K

-1.38%

International Primary School, 1 Child (Yearly)

$12.6K $12.6K

$11.1K MX$205.2K

13.36%

Jeans (Levis 501 Or Similar)

$46.51 $46.51

$72.1 MX$1,332

-35.47%

Summer Dress (H&M, Zara, etc)

$25.04 $25.04

$42.38 MX$783

-40.92%

Sport Shoes (Adidas, Nike)

$57.5 $57.5

$112 MX$2,066

-48.56%

Men's Leather Business Shoes

$49.29 $49.29

$119 MX$2,200

-58.59%

1-bedroom Apartment, City Center (Monthly)

$1,602 $1,602

$949 MX$17.5K

68.77%

1-bedroom Apartment, Outside City Center (Monthly)

$1,295 $1,295

$666 MX$12.3K

94.28%

3-bedroom Apartment, City Center (Monthly)

$2,473 $2,473

$1,821 MX$33.7K

35.79%

3-bedroom Apartment, Outside City Center (Monthly)

$2,167 $2,167

$1,271 MX$23.5K

70.50%

Buy Apartment in City Center (m2)

$2,348 $2,348

$4,050 MX$74.8K

-42.04%

Buy Apartment Outside City Center (m2)

$2,575 $2,575

$2,348 MX$43.4K

9.69%

Average Monthly Net Salary (After Tax)

$1,155 MX$21.3K

20-Year Fixed Mortgage Interest Rate (Annual %)

6.72

11.79

-43.00%

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 Monterrey: October 18, 2026

Monthly budget structure

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

Accommodation & Living

O'Fallon, IL

$1.3K 50%

Monterrey

$666 41.7% 48.5% $628

Groceries & Markets

O'Fallon, IL

$456 17.6%

Monterrey

$304 19% 33.2% $151

Monthly Utilities & Internet

O'Fallon, IL

$387 14.9%

Monterrey

$169 10.6% 56.2% $217

Eating Out

O'Fallon, IL

$287 11.1%

Monterrey

$221 13.9% 22.8% $65

Clothing & Footwear

O'Fallon, IL

$80 3.1%

Monterrey

$155 9.7% 93.6% $75

Sport & Entertainment

O'Fallon, IL

$67 2.6%

Monterrey

$41 2.6% 39.1% $26

Getting Around

O'Fallon, IL

$20 * 0.8%

Monterrey

$41 2.6% 106% $21

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

Cost Breakdown

A one-bedroom apartment in the center runs $1,602 in O'Fallon, IL and $949 in Monterrey. Housing cost is often the main lever when comparing two cities.

Dining out: $74.0 in O'Fallon, IL vs $48.00 in Monterrey for a mid-range dinner for two. Groceries echo the gap at $456 vs $304 per month, with Monterrey cheaper across the board.

Good to know

🇺🇸 O'Fallon, IL

🇲🇽 Monterrey

🕒 Local time

19:58 7:58 PM

18:58 6:58 PM

1 h behind O'Fallon, IL

🌤 Weather

👥 Population

94,074

1,142,994

💱 Currency

United States Dollar USD $

Mexican Peso MXN $

📈 Exchange rate

1 USD = 0.89 EUR

100 MXN = 5.41 USD

100 MXN = 4.81 EUR

Exchange rates and currency converter

MXN, EUR to USD – United States Dollar Converter

🇲🇽 Mexican Peso ($)

🇺🇸 United States Dollar ($)

United States Dollar exchange rates as of October 22, 2026: 1 EUR = 1.12 USD (1 USD = 0.89 EUR).

Mexican Peso exchange rates as of October 22, 2026: 1 USD = 18.48 MXN (100 MXN = 5.41 USD). 1 EUR = 20.77 MXN (100 MXN = 4.81 EUR).

MXN to USD in detail →

On the map

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Between locations

O'Fallon, IL Monterrey 1,740 km ≈ 2 h 45 min nonstop flight

From you

O'Fallon, IL
Monterrey

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 Monterrey: Cost of Living - Frequently Asked Questions

O'Fallon, IL and Monterrey differ by about 62% in total monthly costs ($2,591 vs $1,599 including rent). Monterrey is meaningfully more affordable – a gap that matters a lot on a fixed or modest income.

You'd need roughly $3,886 in O'Fallon, IL and $2,399 in Monterrey to live well. The gap comes down to housing and overall price levels. Both cities are liveable on less, but these numbers represent actual comfort.

Rent for a central apartment: $1,602 in O'Fallon, IL versus $949 in Monterrey. Housing is usually the single largest factor when comparing overall living costs between the two.

Childcare runs $663 in O'Fallon, IL versus $673 in Monterrey. Over years of preschool, even a modest monthly gap compounds into a major financial factor for families.

Dining out is cheaper in Monterrey – a meal for two runs $48.00 versus $74.0 in O'Fallon, IL. If you eat out regularly, this makes a real dent in your monthly spending.

At $1,599 in Monterrey versus $2,591 in O'Fallon, IL, a $2,000 budget is realistic in Monterrey but tight or insufficient in O'Fallon, IL. The gap between the two cities makes Monterrey the clear choice for anyone on this budget.

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, O'Fallon, IL and Monterrey 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 Monterrey gentler on the wallet – expenses run 62% less than in O'Fallon, IL. Beyond cost, consider language, visa policies, and how big the international community is in each city.