Is San Diego, CA cheaper than Thornton, CO?

Based on cost of living data, San Diego, CA is 35.6% more expensive than Thornton, CO. This translates to spending an extra $2671 per month.

What salary do I need in San Diego, CA to live like I do in Thornton, CO?

If you earn $150,000 in Thornton, CO, you'd need approximately $182,050.203 in San Diego, CA to maintain the same standard of living.

How does housing cost compare between Thornton, CO and San Diego, CA?

Housing in San Diego, CA is 85.1% more expensive than in Thornton, CO. For a two-bedroom apartment, rent is $3,360/month in San Diego, CA compared to $1,748/month in Thornton, CO.

How much can I save per month by moving from Thornton, CO to San Diego, CA?

Living in San Diego, CA costs approximately $2671 more per month than Thornton, CO, or $32050 more per year, based on a $150,000 salary.

Thornton, CO vs San Diego, CA: Cost of Living Comparison 2026

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Cost of Living Comparison 2026

Data: HUD rent estimates, BLS cost of living

Current salary in Thornton, CO

Numbers update automatically as you type

You'd spend $2.7K/month more in San Diego, CA

$150.0K in your current city equals $182.1K in San Diego, CA

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

Overall Cost

↑ 35.6%

More expensive

Monthly Impact

$2,671

Extra cost

Annual Impact

$32.1K

Per year

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

Thornton, CO

Population:145K

Cost Index:

100

100 = national average

Median Home:$417K

San Diego, CA

Population:1387K

Cost Index:

136

(36% above avg)

Median Home:$980K

Thornton, CO

The Centennial State

145K

Population

State Tax

Yes

Located in Colorado, this city has a population of 145K residents.

San Diego, CA

The Golden State

1.4M

Population

State Tax

Yes

Climate

Semi-arid Mediterranean

Notable Facts

•Year-round perfect weather
•Major military presence
•Biotech hub

Major Industries

MilitaryTechnologyTourismBiotechnology

Cost Breakdown by Category

Annual spending: Thornton, CO vs San Diego, CA

Category	Thornton, CO	San Diego, CA	Difference	Change
Housing	$2,822/mo	$5,223/mo	↑ $2,401more	85.1%
Other	$1,713/mo	$1,892/mo	↑ $179more	10.4%
Transportation	$1,411/mo	$1,571/mo	↑ $160more	11.3%
All Utilities	$510/mo	$634/mo	↑ $124more	24.3%
Groceries	$1,011/mo	$1,079/mo	↑ $67.96more	6.7%
Healthcare	$621/mo	$638/mo	↑ $17.25more	2.8%

Housing

↑ 85.1%

Thornton, CO

$2,822

San Diego, CA

$5,223

Difference

$2,401

Other

↑ 10.4%

Thornton, CO

$1,713

San Diego, CA

$1,892

Difference

$179

Transportation

↑ 11.3%

Thornton, CO

$1,411

San Diego, CA

$1,571

Difference

$160

All Utilities

↑ 24.3%

Thornton, CO

$510

San Diego, CA

$634

Difference

$124

Groceries

↑ 6.7%

Thornton, CO

$1,011

San Diego, CA

$1,079

Difference

$67.96

Healthcare

↑ 2.8%

Thornton, CO

$621

San Diego, CA

$638

Difference

$17.25

🏠Rent Comparison

Studio

From$1,378

To$2,565

↑ $1,187

1 Bed

From$1,469

To$2,755

↑ $1,286

2 Bed

From$1,748

To$3,360

↑ $1,612

3 Bed

From$2,289

To$4,475

↑ $2,186

Thornton, COZIP-level data

1BR range: $1,790–$1,790/mo

San Diego, CAZIP-level data

1BR range: $1,980–$3,690/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.

$8,088

Monthly in Thornton, CO

$11,037

Monthly in San Diego, CA

$2,949

Difference

Home Values

Thornton

San Diego

$417K

Median Value

$980K

↓ -3.5%

YoY Change

↓ -3%

↑ +19.7%

5-Year Change

↑ +37.4%

$417K

Price Range

$598K - $2.01M

Homes in San Diego are 135% more expensive than Thornton

Calculate payment - Thornton Calculate payment - San Diego

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

Tax Comparison

Annual tax burden comparison at $150.0K salary

Tax Savings

↓ $4.0K

More taxes

Monthly Difference

$336

Less take-home

Effective Rate Diff

2.7%

Rate difference

Thornton, 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

San Diego, 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

Additional Tax Information

Thornton, CO Tax Rates

Sales Tax:7.8%

Property Tax:0.5%

San Diego, CA Tax Rates

Sales Tax:10.5%

Property Tax:0.8%

💡 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.