Is Indianapolis, IN cheaper than Mount Prospect, IL?

Based on cost of living data, Indianapolis, IN is 12.0% cheaper than Mount Prospect, IL. This translates to saving $902 per month.

What salary do I need in Indianapolis, IN to live like I do in Mount Prospect, IL?

If you earn $150,000 in Mount Prospect, IL, you'd need approximately $139,178.887 in Indianapolis, IN to maintain the same standard of living.

How does housing cost compare between Mount Prospect, IL and Indianapolis, IN?

Housing in Indianapolis, IN is 22.8% cheaper than in Mount Prospect, IL. For a two-bedroom apartment, rent is $1,360/month in Indianapolis, IN compared to $1,485/month in Mount Prospect, IL.

How much can I save per month by moving from Mount Prospect, IL to Indianapolis, IN?

Moving from Mount Prospect, IL to Indianapolis, IN could save you approximately $902 per month, or $10821 per year, based on a $150,000 salary.

Mount Prospect, IL vs Indianapolis, IN: 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 $902/month moving to Indianapolis, IN

$150.0K in your current city equals $139.2K in Indianapolis, IN

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

Overall Cost

↓ 12.0%

Less expensive

Monthly Impact

$902

Savings

Annual Impact

$10.8K

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

Indianapolis, IN

Population:888K

Cost Index:88

Median Home:$176K

Mount Prospect, IL

The Prairie State

54K

Population

State Tax

Yes

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

Indianapolis, IN

The Hoosier State

888K

Population

State Tax

Yes

Located in Indiana, this city has a population of 888K residents.

Cost Breakdown by Category

Annual spending: Mount Prospect, IL vs Indianapolis, IN

Category	Mount Prospect, IL	Indianapolis, IN	Difference	Change
🏠Housing	$2,525/mo	$1,949/mo	↓ $576less	22.8%
🚗Transportation	$1,537/mo	$1,188/mo	↓ $349less	22.7%
🛒Groceries	$984/mo	$919/mo	↓ $65.10less	6.6%
📦Other	$1,608/mo	$1,590/mo	↓ $17.65less	1.1%
🏥Healthcare	$569/mo	$582/mo	↑ $13.51more	2.4%
⚡All Utilities	$496/mo	$503/mo	↑ $6.21more	1.3%

🏠Housing

↓ 22.8%

Mount Prospect, IL

$2,525

Indianapolis, IN

$1,949

Difference

$576

less

🚗Transportation

↓ 22.7%

Mount Prospect, IL

$1,537

Indianapolis, IN

$1,188

Difference

$349

less

🛒Groceries

↓ 6.6%

Mount Prospect, IL

$984

Indianapolis, IN

$919

Difference

$65.10

less

📦Other

↓ 1.1%

Mount Prospect, IL

$1,608

Indianapolis, IN

$1,590

Difference

$17.65

less

🏥Healthcare

↑ 2.4%

Mount Prospect, IL

$569

Indianapolis, IN

$582

Difference

$13.51

⚡All Utilities

↑ 1.3%

Mount Prospect, IL

$496

Indianapolis, IN

$503

Difference

$6.21

🏛️ Local Income Taxes

Indianapolis, IN: Marion County Income Tax$3,030/yr (2.0%)

Mount Prospect, IL 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$1,236

To$1,030

↓ $206

1 Bed

From$1,322

To$1,170

↓ $152

2 Bed

From$1,485

To$1,360

↓ $125

3 Bed

From$1,913

To$1,760

↓ $153

Mount Prospect, ILZIP-level data

1BR range: $1,700–$1,700/mo

Indianapolis, INZIP-level data

1BR range: $1,080–$1,870/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

$6,732

Monthly in Indianapolis, IN

$987

Difference

Home Values

Mount Prospect

Indianapolis

$416K

Median Value

$176K

↑ +6.5%

YoY Change

↓ -1.1%

↑ +37.7%

5-Year Change

↑ +26.9%

$416K

Price Range

$109K - $340K

Homes in Indianapolis are 58% less expensive than Mount Prospect

Calculate payment - Mount Prospect Calculate payment - Indianapolis

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

Tax Comparison

Annual tax burden comparison at $150.0K salary

Tax Savings

↑ $2.6K

Per year

Monthly Difference

$215

More take-home

Effective Rate Diff

1.7%

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

Indianapolis, IN

Federal Income Tax

Effective: 18.9%

$25.5K

Indiana State Tax

Effective: 3.2%

$4.8K

FICA Taxes

Social Security + Medicare

$11.5K

Total Taxes

Effective: 27.9%

$41.9K

Take-Home Pay

$9,012/month

$108.1K

Additional Tax Information

Mount Prospect, IL Tax Rates

Sales Tax:8.8%

Property Tax:2.2%

Indianapolis, IN Tax Rates

Sales Tax:7.0%

Property Tax:0.9%

💡 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.