Black Diamond, WA vs Seattle, WA: Cost of Living

Which city costs less?

Seattle, WA has a modeled overall cost index 64.7% higher than Black Diamond, WA.

Black Diamond, WA · modeled 2BR rent: $2,640 / month
Seattle, WA · modeled 2BR rent: $2,630 / 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 Black Diamond, WA and Seattle, WA 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 Black Diamond, WA

Numbers update automatically as you type

Estimated extra cost: $4,828/month in Seattle, WA

$150,000 in your current city has a modeled equivalent of $207,931 in Seattle, WA

Regional cost estimates: Black Diamond, WA uses Tacoma, WA. Seattle, WA uses Seattle-Tacoma-Bellevue, WA Metropolitan Area. Available city ZIP rent estimates are shown separately.

Overall Cost

↑ 64.7%

More expensive

Monthly Impact

$4,828

Extra cost

Annual Impact

$57.9K

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.

Black Diamond, WA

Population:7K

Cost Index:

104.4

100 = national average

Typical Home:$772K

Seattle, WA

Population:749K

Cost Index:

172.0

100 = national average

Typical Home:$808K

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Black Diamond, WA

The Evergreen State

Population

State Tax

No Income Tax

Located in Washington, this city has a population of 7K residents.

💡 Advantage: Washington has no state income tax!

Seattle, WA

The Evergreen State

749K

Population

State Tax

No Income Tax

Climate

Oceanic

Notable Facts

•Coffee culture birthplace
•Major tech center
•Pacific Northwest gateway

Major Industries

TechnologyAerospaceMaritime TradeCoffee Industry

Cost Breakdown by Category

Estimated monthly spending: Black Diamond, WA vs Seattle, WA

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	Black Diamond, WA	Seattle, WA	Difference	Change
Housing	$2,530/mo	$6,735/mo	↑ $4,205more	166.2%
Other	$1,355/mo	$1,765/mo	↑ $411more	30.3%
Transportation	$1,568/mo	$1,697/mo	↑ $129more	8.2%
Groceries	$927/mo	$964/mo	↑ $37.41more	4.0%
Healthcare	$708/mo	$736/mo	↑ $28.56more	4.0%
All Utilities	$413/mo	$430/mo	↑ $16.67more	4.0%

Housing

↑ 166.2%

Black Diamond, WA

$2,530

Seattle, WA

$6,735

Difference

$4,205

Other

↑ 30.3%

Black Diamond, WA

$1,355

Seattle, WA

$1,765

Difference

$411

Transportation

↑ 8.2%

Black Diamond, WA

$1,568

Seattle, WA

$1,697

Difference

$129

Groceries

↑ 4.0%

Black Diamond, WA

$927

Seattle, WA

$964

Difference

$37.41

Healthcare

↑ 4.0%

Black Diamond, WA

$708

Seattle, WA

$736

Difference

$28.56

All Utilities

↑ 4.0%

Black Diamond, WA

$413

Seattle, WA

$430

Difference

$16.67

🏠Rent Comparison

Studio

From$2,190

To$2,180

↓ $10.00

1 Bed

From$2,270

To$2,260

↓ $10.00

2 Bed

From$2,640

To$2,630

↓ $10.00

3 Bed

From$3,450

To$3,440

↓ $10.00

Black Diamond, WAZIP-level data

1BR range: $2,270–$2,270/mo

Seattle, WAZIP-level data

1BR range: $1,900–$3,210/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 Black Diamond, WA

$12,328

Monthly in Seattle, WA

$4,828

Difference

Home Values

Black Diamond

Seattle

$772K

Median Value

$808K

↓ -1.6%

YoY Change

↓ -2.5%

↑ +34%

5-Year Change

↑ +12.5%

$772K

Price Range

$433K - $1.34M

Homes in Seattle are 5% more expensive than Black Diamond

Calculate payment - Black Diamond Calculate payment - Seattle

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

Black Diamond, WA

Federal Income Tax

Effective: 18.9%

$25.5K

Washington State Tax

No state income tax

FICA Taxes

Social Security + Medicare

$11.5K

Total Taxes

Effective: 24.7%

$37.0K

Take-Home Pay

$9,416/month

$113.0K

Seattle, WA

Federal Income Tax

Effective: 18.9%

$25.5K

Washington State Tax

No state income tax

FICA Taxes

Social Security + Medicare

$11.5K

Total Taxes

Effective: 24.7%

$37.0K

Take-Home Pay

$9,416/month

$113.0K

Additional Tax Information

Black Diamond, WA Tax Rates

Sales Tax:9.2%

Property Tax:0.9%

Seattle, WA Tax Rates

Sales Tax:9.2%

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.

🚶 Walkability

Modeled road attributes, not a safety assessment. Methodology and limitations

Black Diamond, WA: No data yet

Seattle, WA

50/100

2.3% sidewalk tags · 3.3% cycling tags

Environment

Black Diamond

Seattle

44 Good

Air Quality

41 Good

72.4%

Good Air Days

69.7%

99 High

Climate Risk

100 Very High

🌊🌡🫨

Top Hazards

🌊🌡🫨

▲+2.4°F

2050 Outlook

▲+2.6°F

1 days

Heat Days >95°F

2 days

▲+2.4°F

2050 Outlook

▲+2.6°F

1 days

Heat Days >95°F

2 days

Before moving from Black Diamond, WA to Seattle, WA

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

Compare actual homes. Get current quotes in Seattle, WA for the same bedroom count and included utilities as your home in Black Diamond, WA. 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 Black Diamond to Seattle moving checklist to organize the tasks and timing.

Still choosing a destination? Explore cities similar to Seattle, WA by cost, housing, population and region.

Frequently Asked Questions: Black Diamond, WA vs Seattle, WA

How do the cost estimates for Black Diamond, WA and Seattle, WA compare?

Seattle, WA has a modeled overall cost index 64.7% higher than Black Diamond, WA. 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 Black Diamond, WA, the model estimates $207,931 in Seattle, WA. 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 Black Diamond, WA and Seattle, WA?

The modeled two-bedroom rents are $2,640/month in Black Diamond, WA and $2,630/month in Seattle, WA. 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.