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
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.
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%
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 Cowlitz County Tax Rate
0.87%
Median Effective Washington Tax Rate
0.92%
Median Effective United States Tax Rate
1.27%
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
$274,101
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.
Median Silverlake Tax Bill
$3,477
Median Cowlitz County Tax Bill
$2,984
Median Washington Tax Bill
$4,512
Median United States Tax Bill
$3,209
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 |