Is St. Louis, MO cheaper than Westmont, CA?

Based on cost of living data, St. Louis, MO is 44.0% cheaper than Westmont, CA. This translates to saving $3302 per month.

What salary do I need in St. Louis, MO to live like I do in Westmont, CA?

If you earn $150,000 in Westmont, CA, you'd need approximately $110,371.431 in St. Louis, MO to maintain the same standard of living.

How does housing cost compare between Westmont, CA and St. Louis, MO?

Housing in St. Louis, MO is 70.1% cheaper than in Westmont, CA. For a two-bedroom apartment, rent is $1,160/month in St. Louis, MO compared to $2,135/month in Westmont, CA.

How much can I save per month by moving from Westmont, CA to St. Louis, MO?

Moving from Westmont, CA to St. Louis, MO could save you approximately $3302 per month, or $39629 per year, based on a $150,000 salary.

Westmont, CA vs St. Louis, MO: Cost of Living Comparison 2026

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Cost of Living Comparison 2026

📍 Westmont, CA — COL adjusted from Los Angeles, CA area + state data

Current salary in Westmont, CA

Numbers update automatically as you type

You'd save $3.3K/month moving to St. Louis, MO

$150.0K in your current city equals $110.4K in St. Louis, MO

Rent data from HUD ZIP-level estimates · COL index from area

Overall Cost

↓ 44.0%

Less expensive

Monthly Impact

$3,302

Savings

Annual Impact

$39.6K

Per year

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

Westmont, CA

Population:34K

Cost Index:100

Median Home:$885K

St. Louis, MO

Population:302K

Cost Index:56

Median Home:$145K

Westmont, CA

The Golden State

34K

Population

State Tax

Yes

Located in California, this city has a population of 34K residents.

St. Louis, MO

The Show-Me State

302K

Population

State Tax

Yes

Located in Missouri, this city has a population of 302K residents.

Cost Breakdown by Category

Annual spending: Westmont, CA vs St. Louis, MO

Category	Westmont, CA	St. Louis, MO	Difference	Change
🏠Housing	$6,256/mo	$1,871/mo	↓ $4,385less	70.1%
🚗Transportation	$1,936/mo	$1,216/mo	↓ $720less	37.2%
📦Other	$1,553/mo	$1,607/mo	↑ $54.46more	3.5%
🛒Groceries	$985/mo	$949/mo	↓ $35.89less	3.6%
⚡All Utilities	$528/mo	$535/mo	↑ $7.63more	1.4%
🏥Healthcare	$525/mo	$527/mo	↑ $2.05more	0.4%

🏠Housing

↓ 70.1%

Westmont, CA

$6,256

St. Louis, MO

$1,871

Difference

$4,385

less

🚗Transportation

↓ 37.2%

Westmont, CA

$1,936

St. Louis, MO

$1,216

Difference

$720

less

📦Other

↑ 3.5%

Westmont, CA

$1,553

St. Louis, MO

$1,607

Difference

$54.46

🛒Groceries

↓ 3.6%

Westmont, CA

$985

St. Louis, MO

$949

Difference

$35.89

less

⚡All Utilities

↑ 1.4%

Westmont, CA

$528

St. Louis, MO

$535

Difference

$7.63

🏥Healthcare

↑ 0.4%

Westmont, CA

$525

St. Louis, MO

$527

Difference

$2.05

🏛️ Local Income Taxes

St. Louis, MO: St. Louis Earnings Tax$1,500/yr (1.0%)

Westmont, CA has no local income tax.

Local taxes are in addition to state income tax. Not all cities levy local income taxes.

🏠Rent Comparison

Studio

From$1,410

To$910

↓ $500

1 Bed

From$1,601

To$950

↓ $651

2 Bed

From$2,135

To$1,160

↓ $975

3 Bed

From$3,202

To$1,490

↓ $1,712

St. Louis, MOZIP-level data

1BR range: $800–$1,480/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.

$11,782

Monthly in Westmont, CA

$6,705

Monthly in St. Louis, MO

$5,077

Difference

Home Values

Westmont

St. Louis

Median Value

$145K

YoY Change

↓ -0.8%

5-Year Change

↑ +10.9%

Price Range

$38K - $302K

Calculate payment - St. Louis

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

Tax Comparison

Annual tax burden comparison at $150.0K salary

Tax Savings

↑ $2.7K

Per year

Monthly Difference

$225

More take-home

Effective Rate Diff

1.8%

Rate difference

Westmont, CA

Federal Income Tax

Effective: 18.9%

$25.5K

California State Tax

Effective: 7.1%

$10.6K

FICA Taxes

Social Security + Medicare

$11.5K

Total Taxes

Effective: 31.8%

$47.6K

Take-Home Pay

$8,530/month

$102.4K

St. Louis, MO

Federal Income Tax

Effective: 18.9%

$25.5K

Missouri State Tax

Effective: 5.3%

$7.9K

FICA Taxes

Social Security + Medicare

$11.5K

Total Taxes

Effective: 30.0%

$44.9K

Take-Home Pay

$8,755/month

$105.1K

Additional Tax Information

Westmont, CA Tax Rates

Sales Tax:10.5%

Property Tax:0.8%

St. Louis, MO Tax Rates

Sales Tax:8.2%

Property Tax:1.0%

💡 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.