Silverlake, Cowlitz County, Washington Property Taxes

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Property Taxes in Silverlake, Washington

Median Silverlake, Washington effective property tax rate: 0.98%, significantly lower than the national median of 1.02%, and higher than the Washington state median of 0.92%.
Median Silverlake, Washington home value: $380,695
Median annual Silverlake, Washington tax bill: $3,477, $1,077 higher than the national median property tax bill of $2,400.

How are property taxes in Cowlitz calculated?

Property taxes in Silverlake, Washington are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.

Understanding Silverlake's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Silverlake, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

Silverlake, Cowlitz County, Washington Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

0.98%

Estimate Property Tax Bill

$3,731

$3,462

How Does the Silverlake Property Tax Calculator Work?

Use this Silverlake property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Silverlake's median effective tax rate of 0.98% — based on actual property records in Cowlitz County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local appraisal district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Silverlake's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.

Your bill may vary by ZIP code within Silverlake: rates range from 0.98% in 98645 to 0.98% in 98645, primarily due to differences in school district levies and local assessment districts.

For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Silverlake.

About Silverlake Property Taxes

About Property Taxes in Silverlake, Cowlitz, Washington

Silverlake’s median effective property tax rate of 0.98% is lower than the Washington state median of 0.92% and lower than the national median of 1.02%. This rate reflects the Cowlitz County base levy combined with local school district levies and Local improvement districts (LIDs) that vary by subdivision throughout the city.

Property tax rates are not uniform across Silverlake. Homeowners in ZIP code 98645 carry a median effective rate of 0.98%, while those in 98645 pay 0.98%. This spread — 0.00 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Cowlitz County. Understanding which part of Silverlake you live in can make a meaningful difference to your annual tax bill.

Silverlake homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the July 1, 2026 deadline each year.

If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.

Property Tax Rates Across Silverlake, Cowlitz County, Washington

As noted earlier, local government entities set tax rates, which can vary widely within a state.

Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.

While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.

Below, you can compare Silverlake's effective property tax rate to other cities in Washington and the median property tax rates in Washington and the U.S.

Property Tax Rates Across Silverlake, Cowlitz County, Washington

Source: Ownwell

0.74%

0.87%

0.99%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective Silverlake Tax Rate

0.98%

Median Effective Cowlitz County Tax Rate

0.87%

Median Effective Washington Tax Rate

0.92%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Silverlake, Cowlitz County, Washington

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
98645	0.85%	0.89%	0.98%	0.98%	0.99%

Source: Ownwell

Property Tax Assessment Values Across Silverlake, Cowlitz County, Washington

When examining property taxes in Silverlake, Washington, understanding the distinction between "market value" and "assessed value" is crucial.

The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Cowlitz County appraisal district estimates the market value for tax purposes.

The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.

Assessment notices:

In Cowlitz County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of May.

Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Silverlake.

For example, the median home price in Silverlake is $380,695, with tax bills ranging significantly across the county. 98645 has the highest median home price at $380,695.

Property Tax Assessment Values Across Silverlake, Cowlitz County, Washington

Source: Ownwell

$251,115

$353,353

$455,590

Median Silverlake Market Value

$380,695

Median Cowlitz County Market Value

$341,430

Median Washington Market Value

$501,600

Median United States Market Value

$235,294

Property Tax Assessment Values Across Silverlake, Cowlitz County, Washington

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
98645	$127,508	$253,005	$380,695	$484,228	$604,187

Source: Ownwell

Property Tax Bills Across Silverlake, Cowlitz County, Washington

Property tax bills in Silverlake are based on the assessed value of a home and the local tax rate set by taxing authorities in Cowlitz County. When a property’s market value changes, the assessed value can change too, which affects the final bill. The median home price in Silverlake is $380,695, and the median property tax bill is $3,477, which is above the national median property tax bill of $2,400.

Several factors influence what homeowners pay, including the home’s assessed value, local levies, and any exemptions or special assessments that may apply. Bills can vary widely across the area, with the 25th percentile at $2,185 and the 75th percentile at $4,461. At the 90th percentile, property tax bills reach $5,470.

For homeowners, this means property taxes can be a significant ongoing cost, especially when home values rise. Understanding how the bill is calculated can help homeowners better anticipate changes and plan for annual expenses.

Property Tax Bills Across Silverlake, Cowlitz County, Washington

Source: Ownwell

$2,070

$2,911

$3,751

Median Silverlake Tax Bill

$3,477

Median Cowlitz County Tax Bill

$2,984

Median Washington Tax Bill

$4,512

Median United States Tax Bill

$2,400

Property Tax Bills Across Silverlake, Cowlitz County, Washington

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
98645	$825	$2,185	$3,477	$4,461	$5,470

Source: Ownwell

Don't miss the deadline to appeal!

Dates
Appeal Deadline	July 1
Tax Bill
Issued	February 10
Due Date #1	April 30
Due Date #2	October 31

Links
Cowlitz Tax Assessor
Website	cowlitzinfo.net

Frequently Asked Property Tax Questions in Silverlake, Washington

How are property taxes calculated in Silverlake, Washington?

Property taxes in Silverlake, Washington are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.

How do I appeal my property taxes in Silverlake, Washington?

To appeal your property taxes in Silverlake, Washington, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.

What property tax exemptions are available in Silverlake, Washington?

Common property tax exemptions in Silverlake, Washington include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.

When are property taxes due in Silverlake, Washington?

Property tax deadlines in Silverlake, Washington vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.

How can Ownwell help reduce my property taxes in Silverlake, Washington?

Ownwell provides professional property tax appeal services in Silverlake, Washington. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.