Cosmopolis, WA vs Mill City, OR: Cost of Living

Which city costs less?

Mill City, OR has a modeled overall cost index 9.4% higher than Cosmopolis, WA.

Cosmopolis, WA · modeled 2BR rent: $1,400 / month
Mill City, OR · modeled 2BR rent: $1,390 / 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 Cosmopolis, WA and Mill City, OR 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 Cosmopolis, WA

Numbers update automatically as you type

Estimated extra cost: $525/month in Mill City, OR

$150,000 in your current city has a modeled equivalent of $156,297 in Mill City, OR

Regional cost estimates: Cosmopolis, WA uses Tacoma, WA. Mill City, OR uses Portland, OR. Available city ZIP rent estimates are shown separately.

Overall Cost

↑ 9.4%

More expensive

Monthly Impact

$525

Extra cost

Annual Impact

$6.3K

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.

Cosmopolis, WA

Population:2K

Cost Index:

96.6

100 = national average

Typical Home:$319K

Mill City, OR

Population:2K

Cost Index:

105.7

100 = national average

Typical Home:$351K

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Cosmopolis, WA

The Evergreen State

Population

State Tax

No Income Tax

Located in Washington, this city has a population of 2K residents.

💡 Advantage: Washington has no state income tax!

Mill City, OR

The Beaver State

Population

State Tax

Yes

Located in Oregon, this city has a population of 2K residents.

Cost Breakdown by Category

Estimated monthly spending: Cosmopolis, WA vs Mill City, OR

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	Cosmopolis, WA	Mill City, OR	Difference	Change
Housing	$2,503/mo	$3,289/mo	↑ $787more	31.4%
Transportation	$1,551/mo	$1,337/mo	↓ $214less	13.8%
Healthcare	$728/mo	$571/mo	↓ $157less	21.5%
Other	$1,340/mo	$1,496/mo	↑ $156more	11.6%
Groceries	$953/mo	$921/mo	↓ $32.14less	3.4%
All Utilities	$425/mo	$410/mo	↓ $15.19less	3.6%

Housing

↑ 31.4%

Cosmopolis, WA

$2,503

Mill City, OR

$3,289

Difference

$787

Transportation

↓ 13.8%

Cosmopolis, WA

$1,551

Mill City, OR

$1,337

Difference

$214

less

Healthcare

↓ 21.5%

Cosmopolis, WA

$728

Mill City, OR

$571

Difference

$157

less

Other

↑ 11.6%

Cosmopolis, WA

$1,340

Mill City, OR

$1,496

Difference

$156

Groceries

↓ 3.4%

Cosmopolis, WA

$953

Mill City, OR

$921

Difference

$32.14

less

All Utilities

↓ 3.6%

Cosmopolis, WA

$425

Mill City, OR

$410

Difference

$15.19

less

🏠Rent Comparison

Studio

From$960

To$1,040

↑ $80.00

1 Bed

From$1,070

To$1,120

↑ $50.00

2 Bed

From$1,400

To$1,390

↓ $10.00

3 Bed

From$1,940

To$1,940

→ $0

Cosmopolis, WAZIP-level data

1BR range: $1,070–$1,070/mo

Mill City, ORZIP-level data

1BR range: $1,120–$1,120/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 Cosmopolis, WA

$8,025

Monthly in Mill City, OR

$525

Difference

Home Values

Cosmopolis

Mill City

$319K

Median Value

$351K

↓ -1.4%

YoY Change

↓ -0.1%

↑ +18.3%

5-Year Change

↑ +30.4%

Homes in Mill City are 10% more expensive than Cosmopolis

Calculate payment - Cosmopolis Calculate payment - Mill City

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

Tax Comparison

Annual tax burden comparison at $150.0K salary

Tax Savings

↓ $15.5K

More taxes

Monthly Difference

$1,293

Less take-home

Effective Rate Diff

10.3%

Rate difference

Cosmopolis, 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

Mill City, OR

Federal Income Tax

Effective: 18.9%

$25.5K

Oregon State Tax

Effective: 10.3%

$15.5K

FICA Taxes

Social Security + Medicare

$11.5K

Total Taxes

Effective: 35.0%

$52.5K

Take-Home Pay

$8,123/month

$97.5K

Additional Tax Information

Cosmopolis, WA Tax Rates

Sales Tax:9.2%

Property Tax:0.9%

Mill City, OR Tax Rates

Sales Tax:0.0%

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.

Environment

Cosmopolis

Mill City

44 Good

Air Quality

35 Good

72.4%

Good Air Days

85%

99 High

Climate Risk

98 High

🌊🌡🫨

Top Hazards

🌊🌡🫨

▲+2.4°F

2050 Outlook

▲+2.5°F

1 days

Heat Days >95°F

9 days

▲+2.4°F

2050 Outlook

▲+2.5°F

1 days

Heat Days >95°F

9 days

Before moving from Cosmopolis, WA to Mill City, OR

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

Compare actual homes. Get current quotes in Mill City, OR for the same bedroom count and included utilities as your home in Cosmopolis, 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 Cosmopolis to Mill City moving checklist to organize the tasks and timing.

Still choosing a destination? Explore cities similar to Mill City, OR by cost, housing, population and region.

Frequently Asked Questions: Cosmopolis, WA vs Mill City, OR

How do the cost estimates for Cosmopolis, WA and Mill City, OR compare?

Mill City, OR has a modeled overall cost index 9.4% higher than Cosmopolis, 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 Cosmopolis, WA, the model estimates $156,297 in Mill City, OR. 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 Cosmopolis, WA and Mill City, OR?

The modeled two-bedroom rents are $1,400/month in Cosmopolis, WA and $1,390/month in Mill City, OR. 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.

💰 See how taxes change too — compare take-home pay between Washington and Oregon on TaxTakeHome.com