Is San Antonio, TX cheaper than Mount Prospect, IL?

Based on cost of living data, San Antonio, TX is 8.0% cheaper than Mount Prospect, IL. This translates to saving $598 per month.

What salary do I need in San Antonio, TX to live like I do in Mount Prospect, IL?

If you earn $150,000 in Mount Prospect, IL, you'd need approximately $142,819.295 in San Antonio, TX to maintain the same standard of living.

How does housing cost compare between Mount Prospect, IL and San Antonio, TX?

Housing in San Antonio, TX is 16.8% cheaper than in Mount Prospect, IL. For a two-bedroom apartment, rent is $1,470/month in San Antonio, TX compared to $1,485/month in Mount Prospect, IL.

How much can I save per month by moving from Mount Prospect, IL to San Antonio, TX?

Moving from Mount Prospect, IL to San Antonio, TX could save you approximately $598 per month, or $7181 per year, based on a $150,000 salary.

Mount Prospect, IL vs San Antonio, TX: Cost of Living Comparison 2026

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Cost of Living Comparison 2026

📍 Mount Prospect, IL — ZIP-level rent data · COL adjusted from Chicago, IL area

Current salary in Mount Prospect, IL

Numbers update automatically as you type

You'd save $598/month moving to San Antonio, TX

$150.0K in your current city equals $142.8K in San Antonio, TX

Rent data from HUD ZIP-level estimates · COL index from Chicago-Naperville-Elgin, IL-IN-WI area

Overall Cost

↓ 8.0%

Less expensive

Monthly Impact

$598

Savings

Annual Impact

$7.2K

Per year

Based on monthly living costs (rent, groceries, utilities, transport, healthcare). Home purchase prices shown separately below.

Mount Prospect, IL

Population:54K

Cost Index:100

Median Home:$416K

San Antonio, TX

Population:1547K

Cost Index:92

Median Home:$215K

Mount Prospect, IL

The Prairie State

54K

Population

State Tax

Yes

Located in Illinois, this city has a population of 54K residents.

San Antonio, TX

The Lone Star State

1.5M

Population

State Tax

No Income Tax

Located in Texas, this city has a population of 1.5M residents.

💡 Advantage: Texas has no state income tax!

Cost Breakdown by Category

Annual spending: Mount Prospect, IL vs San Antonio, TX

Category	Mount Prospect, IL	San Antonio, TX	Difference	Change
🏠Housing	$2,525/mo	$2,100/mo	↓ $425less	16.8%
🚗Transportation	$1,537/mo	$1,287/mo	↓ $250less	16.3%
🛒Groceries	$984/mo	$913/mo	↓ $71.09less	7.2%
🏥Healthcare	$569/mo	$527/mo	↓ $42.25less	7.4%
📦Other	$1,608/mo	$1,647/mo	↑ $39.27more	2.4%
⚡All Utilities	$496/mo	$496/mo	↓ $0.89less	0.2%

🏠Housing

↓ 16.8%

Mount Prospect, IL

$2,525

San Antonio, TX

$2,100

Difference

$425

less

🚗Transportation

↓ 16.3%

Mount Prospect, IL

$1,537

San Antonio, TX

$1,287

Difference

$250

less

🛒Groceries

↓ 7.2%

Mount Prospect, IL

$984

San Antonio, TX

$913

Difference

$71.09

less

🏥Healthcare

↓ 7.4%

Mount Prospect, IL

$569

San Antonio, TX

$527

Difference

$42.25

less

📦Other

↑ 2.4%

Mount Prospect, IL

$1,608

San Antonio, TX

$1,647

Difference

$39.27

⚡All Utilities

↓ 0.2%

Mount Prospect, IL

$496

San Antonio, TX

$496

Difference

$0.89

less

🏠Rent Comparison

Studio

From$1,236

To$1,110

↓ $126

1 Bed

From$1,322

To$1,210

↓ $112

2 Bed

From$1,485

To$1,470

↓ $15.00

3 Bed

From$1,913

To$1,890

↓ $23.00

Mount Prospect, ILZIP-level data

1BR range: $1,700–$1,700/mo

San Antonio, TXZIP-level data

1BR range: $840–$1,770/mo

💡 Note: Rent prices are based on HUD Fair Market Rent data and represent median costs. Actual prices vary by neighborhood, amenities, and condition. Source: HUD Small Area Fair Market Rents FY2026.

$7,719

Monthly in Mount Prospect, IL

$6,969

Monthly in San Antonio, TX

$750

Difference

Home Values

Mount Prospect

San Antonio

$416K

Median Value

$215K

↑ +6.5%

YoY Change

↓ -2.9%

↑ +37.7%

5-Year Change

↑ +16.7%

$416K

Price Range

$107K - $905K

Homes in San Antonio are 48% less expensive than Mount Prospect

Calculate payment - Mount Prospect Calculate payment - San Antonio

Source: Zillow Home Value Index (ZHVI), January 2026

Tax Comparison

Annual tax burden comparison at $150.0K salary

Tax Savings

↑ $7.4K

Per year

Monthly Difference

$619

More take-home

Effective Rate Diff

4.9%

Rate difference

Mount Prospect, IL

Federal Income Tax

Effective: 18.9%

$25.5K

Illinois State Tax

Effective: 5.0%

$7.4K

FICA Taxes

Social Security + Medicare

$11.5K

Total Taxes

Effective: 29.6%

$44.4K

Take-Home Pay

$8,797/month

$105.6K

San Antonio, TX

Federal Income Tax

Effective: 18.9%

$25.5K

Texas State Tax

No state income tax

FICA Taxes

Social Security + Medicare

$11.5K

Total Taxes

Effective: 24.7%

$37.0K

Take-Home Pay

$9,416/month

$113.0K

Additional Tax Information

Mount Prospect, IL Tax Rates

Sales Tax:8.8%

Property Tax:2.2%

San Antonio, TX Tax Rates

Sales Tax:8.2%

Property Tax:1.8%

💡 Note: Tax calculations are estimates based on 2024/2025 tax brackets for single filers with standard deduction. Actual taxes may vary based on filing status, deductions, credits, and local variations.