Westminster, CA vs Walnut Creek, CA: Cost of Living

Which city costs less?

Walnut Creek, CA has a modeled overall cost index 5.7% higher than Westminster, CA.

Westminster, CA · modeled 2BR rent: $2,790 / month
Walnut Creek, CA · modeled 2BR rent: $3,350 / month

These are saved estimates, not current rental listings. Some cities use adjusted regional data. Your household budget can differ from the overall index. Sources and assumptions

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Cost of Living Comparison 2026

Compare Westminster, CA and Walnut Creek, CA using saved regional data and explicit budgeting assumptions. Rent estimates are not live listings. Change the salary below, then check the source notes before applying a result to your household.

Saved regional estimates · Sources and assumptions

Current salary in Westminster, CA

Numbers update automatically as you type

Estimated extra cost: $614/month in Walnut Creek, CA

$150,000 in your current city has a modeled equivalent of $157,363 in Walnut Creek, CA

Regional cost estimates: Westminster, CA uses Santa Ana, CA. Walnut Creek, CA uses Oakland, CA. Available city ZIP rent estimates are shown separately.

Overall Cost

↑ 5.7%

More expensive

Monthly Impact

$614

Extra cost

Annual Impact

$7.4K

Per year

Assumes 60% of current gross income goes to living costs. The headline uses the category budget below; taxes, moving costs and savings goals are excluded.

Westminster, CA

Population:89K

Cost Index:

149.8

100 = national average

Typical Home:$1.06M

Walnut Creek, CA

Population:69K

Cost Index:

158.4

100 = national average

Typical Home:$1.07M

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Westminster, CA

The Golden State

89K

Population

State Tax

Yes

Located in California, this city has a population of 89K residents.

Walnut Creek, CA

The Golden State

69K

Population

State Tax

Yes

Located in California, this city has a population of 69K residents.

Cost Breakdown by Category

Estimated monthly spending: Westminster, CA vs Walnut Creek, CA

Assumes 60% of your current gross income is spent on these categories. The headline and totals use this same budget. Rent estimates below are separate reference data. Rounded amounts may differ by $1.

Category	Westminster, CA	Walnut Creek, CA	Difference	Change
Housing	$3,535/mo	$3,986/mo	↑ $451more	12.8%
Healthcare	$366/mo	$465/mo	↑ $99.60more	27.2%
Other	$1,128/mo	$1,210/mo	↑ $82.14more	7.3%
All Utilities	$370/mo	$295/mo	↓ $74.49less	20.1%
Groceries	$689/mo	$764/mo	↑ $74.37more	10.8%
Transportation	$1,412/mo	$1,393/mo	↓ $18.92less	1.3%

Housing

↑ 12.8%

Westminster, CA

$3,535

Walnut Creek, CA

$3,986

Difference

$451

Healthcare

↑ 27.2%

Westminster, CA

$366

Walnut Creek, CA

$465

Difference

$99.60

Other

↑ 7.3%

Westminster, CA

$1,128

Walnut Creek, CA

$1,210

Difference

$82.14

All Utilities

↓ 20.1%

Westminster, CA

$370

Walnut Creek, CA

$295

Difference

$74.49

less

Groceries

↑ 10.8%

Westminster, CA

$689

Walnut Creek, CA

$764

Difference

$74.37

Transportation

↓ 1.3%

Westminster, CA

$1,412

Walnut Creek, CA

$1,393

Difference

$18.92

less

🏠Rent Comparison

Studio

From$2,310

To$2,460

↑ $150

1 Bed

From$2,370

To$2,740

↑ $370

2 Bed

From$2,790

To$3,350

↑ $560

3 Bed

From$3,790

To$4,280

↑ $490

Westminster, CAZIP-level data

1BR range: $2,370–$2,370/mo

Walnut Creek, CAZIP-level data

1BR range: $2,450–$3,180/mo

💡 Note: HUD Fair Market Rents estimate 40th-percentile gross rents, including most tenant-paid utilities. City ZIP summaries are medians of those estimates, not market median rents. Actual prices vary by neighborhood, amenities, and condition. Source: HUD Small Area Fair Market Rents FY2026.

$7,500

Monthly in Westminster, CA

$8,114

Monthly in Walnut Creek, CA

$614

Difference

Home Values

Westminster

Walnut Creek

$1.06M

Median Value

$1.07M

↑ +0.7%

YoY Change

↓ -2%

↑ +40.8%

5-Year Change

↑ +18.9%

$1.06M

Price Range

$678K - $1.34M

Homes in Walnut Creek are 1% more expensive than Westminster

Calculate payment - Westminster Calculate payment - Walnut Creek

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

Westminster, 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

Walnut Creek, 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

Westminster, CA Tax Rates

Sales Tax:10.5%

Property Tax:0.8%

Walnut Creek, 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.

Environment

Westminster

Walnut Creek

54 Moderate

Air Quality

49 Good

32.5%

Good Air Days

53%

100 Very High

Climate Risk

100 Very High

🔥🌊🌅

Top Hazards

🔥🌊🌅

▲+2.6°F

2050 Outlook

▲+1.9°F

12 days

Heat Days >95°F

2 days

▲+2.6°F

2050 Outlook

▲+1.9°F

12 days

Heat Days >95°F

2 days

Before moving from Westminster, CA to Walnut Creek, CA

Use this comparison to shortlist a move, then check the costs that depend on your household.

Compare actual homes. Get current quotes in Walnut Creek, CA for the same bedroom count and included utilities as your home in Westminster, CA. Add parking, deposits, insurance and any overlapping leases. The rent estimates above are a starting point, not available listings.
Confirm your income. Check your expected pay with your employer, including any location adjustment. Use “Different salary at destination?” above to compare two incomes. The budget model excludes taxes and one-time moving costs; it is not a take-home-pay calculation.
Price your daily routine. Check the commute from a specific address to work, school or childcare. Add household expenses missing from this model, such as childcare, debt payments and medical needs. Verify local services before signing a lease.
Plan the transition. Get moving quotes and budget for travel, setup costs and time off. Open your Westminster to Walnut Creek moving checklist to organize the tasks and timing.

Still choosing a destination? Explore cities similar to Walnut Creek, CA by cost, housing, population and region.

Frequently Asked Questions: Westminster, CA vs Walnut Creek, CA

How do the cost estimates for Westminster, CA and Walnut Creek, CA compare?

Walnut Creek, CA has a modeled overall cost index 5.7% higher than Westminster, CA. This is a broad model comparison, not a survey of today's prices or a forecast of your household spending. Some cities use adjusted regional fallback data.

What does the equivalent salary mean?

At a $150,000 salary in Westminster, CA, the model estimates $157,363 in Walnut Creek, CA. It allocates 60% of gross income to the origin city’s category budget and applies each destination category’s relative cost. The equivalent salary adds the total category difference to your income. The monthly difference is the same category difference divided by 12; it is not take-home pay or guaranteed savings. Household size, childcare and your actual lease are not inputs to this calculation.

What rent estimates are available for Westminster, CA and Walnut Creek, CA?

The modeled two-bedroom rents are $2,790/month in Westminster, CA and $3,350/month in Walnut Creek, CA. Where available, the source is a city median of HUD FY2026 ZIP-level estimates; otherwise a saved metro table is used. City adjustments may also apply. These are not asking rents or available listings. Compare actual properties with the same bedroom count and included utilities.

How should I use this comparison before moving?

Use it to shortlist locations, then replace modeled costs with a current housing quote, employer-confirmed income, commute costs, insurance and your household's other expenses. Add one-time moving costs separately. Source years differ and the saved datasets are not a live price feed. Read the methodology for the formulas and fallback rules.