Is Denver, CO cheaper than Castle Rock, CO?

Based on cost of living data, Denver, CO is 5.2% more expensive than Castle Rock, CO. This translates to spending an extra $389 per month.

What salary do I need in Denver, CO to live like I do in Castle Rock, CO?

If you earn $150,000 in Castle Rock, CO, you'd need approximately $154,666.431 in Denver, CO to maintain the same standard of living.

How does housing cost compare between Castle Rock, CO and Denver, CO?

Housing in Denver, CO is 16.9% more expensive than in Castle Rock, CO. For a two-bedroom apartment, rent is $2,190/month in Denver, CO compared to $1,754/month in Castle Rock, CO.

How much can I save per month by moving from Castle Rock, CO to Denver, CO?

Living in Denver, CO costs approximately $389 more per month than Castle Rock, CO, or $4666 more per year, based on a $150,000 salary.

Castle Rock, CO vs Denver, CO: Cost of Living Comparison 2026

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Cost of Living Comparison 2026

📍 Castle Rock, CO — ZIP-level rent data · COL adjusted from Denver, CO area

Current salary in Castle Rock, CO

Numbers update automatically as you type

You'd spend $389/month more in Denver, CO

$150.0K in your current city equals $154.7K in Denver, CO

Rent data from HUD ZIP-level estimates · COL index from Denver-Aurora-Lakewood, CO area

Overall Cost

↑ 5.2%

More expensive

Monthly Impact

$389

Extra cost

Annual Impact

$4.7K

Per year

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

Castle Rock, CO

Population:81K

Cost Index:100

Median Home:$604K

Denver, CO

Population:716K

Cost Index:105

Median Home:$513K

Castle Rock, CO

The Centennial State

81K

Population

State Tax

Yes

Located in Colorado, this city has a population of 81K residents.

Denver, CO

The Centennial State

716K

Population

State Tax

Yes

Climate

Semi-arid

Notable Facts

•Mile-high city (5,280 ft)
•Outdoor recreation hub
•Major cannabis market

Major Industries

AerospaceTechnologyEnergyTourism

Cost Breakdown by Category

Annual spending: Castle Rock, CO vs Denver, CO

Category	Castle Rock, CO	Denver, CO	Difference	Change
🏠Housing	$2,779/mo	$3,248/mo	↑ $469more	16.9%
📦Other	$1,687/mo	$1,774/mo	↑ $87.47more	5.2%
🚗Transportation	$1,390/mo	$1,462/mo	↑ $72.05more	5.2%
🛒Groceries	$1,004/mo	$1,029/mo	↑ $25.69more	2.6%
🏥Healthcare	$616/mo	$632/mo	↑ $15.77more	2.6%
⚡All Utilities	$506/mo	$519/mo	↑ $12.96more	2.6%

🏠Housing

↑ 16.9%

Castle Rock, CO

$2,779

Denver, CO

$3,248

Difference

$469

📦Other

↑ 5.2%

Castle Rock, CO

$1,687

Denver, CO

$1,774

Difference

$87.47

🚗Transportation

↑ 5.2%

Castle Rock, CO

$1,390

Denver, CO

$1,462

Difference

$72.05

🛒Groceries

↑ 2.6%

Castle Rock, CO

$1,004

Denver, CO

$1,029

Difference

$25.69

🏥Healthcare

↑ 2.6%

Castle Rock, CO

$616

Denver, CO

$632

Difference

$15.77

⚡All Utilities

↑ 2.6%

Castle Rock, CO

$506

Denver, CO

$519

Difference

$12.96

🏛️ Local Income Taxes

Denver, CO: Denver Head Tax ($5.75/mo, negligible)$69.00/yr (0.0%)

Castle Rock, CO 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$1,382

To$1,720

↑ $338

1 Bed

From$1,471

To$1,840

↑ $369

2 Bed

From$1,754

To$2,190

↑ $436

3 Bed

From$2,295

To$2,870

↑ $575

Castle Rock, COZIP-level data

1BR range: $1,820–$1,820/mo

Denver, COZIP-level data

1BR range: $1,620–$2,540/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.

$7,982

Monthly in Castle Rock, CO

$8,665

Monthly in Denver, CO

$683

Difference

Home Values

Castle Rock

Denver

$604K

Median Value

$513K

↓ -2%

YoY Change

↓ -4.2%

↑ +26.2%

5-Year Change

↑ +13%

$604K

Price Range

$352K - $933K

Homes in Denver are 15% less expensive than Castle Rock

Calculate payment - Castle Rock Calculate payment - Denver

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

Tax Comparison

Annual tax burden comparison at $150.0K salary

Tax Savings

→ $0

Same taxes

Monthly Difference

Same take-home

Effective Rate Diff

0.0%

Rate difference

Castle Rock, CO

Federal Income Tax

Effective: 18.9%

$25.5K

Colorado State Tax

Effective: 4.4%

$6.6K

FICA Taxes

Social Security + Medicare

$11.5K

Total Taxes

Effective: 29.1%

$43.6K

Take-Home Pay

$8,866/month

$106.4K

Denver, CO

Federal Income Tax

Effective: 18.9%

$25.5K

Colorado State Tax

Effective: 4.4%

$6.6K

FICA Taxes

Social Security + Medicare

$11.5K

Total Taxes

Effective: 29.1%

$43.6K

Take-Home Pay

$8,866/month

$106.4K

Additional Tax Information

Castle Rock, CO Tax Rates

Sales Tax:7.8%

Property Tax:0.5%

Denver, CO Tax Rates

Sales Tax:7.8%

Property Tax:0.5%

💡 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.