Sammamish, King County, Washington Property Taxes
Median Sammamish, WA effective property tax rate: 0.81%, significantly lower than the national median of 1.02%, but lower than the Washington state median of 0.88%.
Median Sammamish, WA home value: $1,544,000
Median annual Sammamish, WA tax bill: $12,306, $9,906 higher than the national median property tax bill of $2,400.
How are property taxes in King County calculated?
Property taxes in Sammamish, WA 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 Sammamish’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Sammamish, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Sammamish, King County, Washington Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.81%
Estimate Property Tax Bill
$12,506
$11,606
$1,102
Average Tax Savings
Property Tax Rates Across Sammamish, King County, Washington
Local government entities set tax rates, which can vary widely within a state. 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 Sammamish’s effective property tax rate to other cities in Washington and the median property tax rates in Washington and the U.S.
Sammamish, located in King County, presents a unique property tax landscape. The median property tax rate here is 0.81%, which is lower than the national median rate of 1.02%. Within Sammamish, the highest median tax rate is 0.83% in the 98029 zip code, while the lowest is 0.78% in the 98074 zip code. This variation in tax rates highlights the importance of understanding local property tax dynamics. By appealing your property tax assessment or seeking exemptions, you can potentially lower your tax burden, ensuring you only pay your fair share.
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 Sammamish Tax Rate
0.81%
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 King County Tax Rate
0.88%
Median Effective Washington Tax Rate
0.88%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Sammamish, King County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98029 | 0.82% | 0.82% | 0.83% | 0.83% | 0.84% |
| 98074 | 0.77% | 0.77% | 0.78% | 0.79% | 0.80% |
| 98075 | 0.81% | 0.81% | 0.81% | 0.82% | 0.83% |
| 98007 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
$1,102
Average Sammamish Tax Savings
Save on your property taxes & more with Ownwell
Property Tax Assessment Values Across Sammamish, King County, Washington
When examining property taxes in Sammamish, WA, 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 King County Assessor 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 King 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 Sammamish. For example, the median home price in Sammamish is $1,544,000, with tax bills ranging significantly across the county. Zip code 98075 has the highest median home price at $1,762,000.
Property Tax Assessment Values Across Sammamish, King County, Washington
Source: Ownwell
$238,500
$3,665,750
$7,093,000
Median Sammamish Market Value
$1,544,000
Median King County Market Value
$770,000
Median Washington Market Value
$482,000
Median United States Market Value
$235,294
Property Tax Assessment Values Across Sammamish, King County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98029 | $522,000 | $1,176,000 | $1,285,500 | $1,407,000 | $1,566,000 |
| 98074 | $912,000 | $1,243,000 | $1,528,000 | $1,885,000 | $2,320,700 |
| 98075 | $1,184,000 | $1,454,000 | $1,762,000 | $2,033,000 | $2,373,000 |
| 98007 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
$1,102
Average Sammamish Tax Savings
Save on your property taxes & more with Ownwell
Property Tax Bills Across Sammamish, King County, Washington
Median Sammamish Tax Bill
$12,306
Median King County Tax Bill
$7,093
Median Washington Tax Bill
$4,284
Median United States Tax Bill
$2,400
Property Tax Bills Across Sammamish, King County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98029 | $4,280 | $9,696 | $10,618 | $11,585 | $12,844 |
| 98074 | $6,884 | $9,674 | $11,904 | $14,749 | $17,970 |
| 98075 | $9,581 | $11,837 | $14,298 | $16,484 | $19,301 |
| 98007 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
$1,102
Average Sammamish Tax Savings
Save on your property taxes & more with 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 | |
|---|---|
| King Tax Assessor | |
| Phone | (206) 296-7300 |
| Website | blue.kingcounty.com |
| assessor.info@kingcounty.gov | |
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