Property Taxes in Maple Valley, Washington
Median Maple Valley, Washington effective property tax rate: 1.11%, significantly lower than the national median of 1.02%, and higher than the Washington state median of 0.92%.
Median Maple Valley, Washington home value: $722,000
Median annual Maple Valley, Washington tax bill: $7,963, $5,563 higher than the national median property tax bill of $2,400.
How are property taxes in King calculated?
Property taxes in Maple Valley, 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 Maple Valley's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Maple Valley, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
How Does the Maple Valley Property Tax Calculator Work?
Use this Maple Valley property tax calculator to estimate your annual tax bill. Enter your property's assessed value and our calculator applies Maple Valley's median effective tax rate of 1.11% — based on actual property records in King 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 Maple Valley'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 Maple Valley: rates range from $7,955.00 in 98038 to $10,501.00 in 98010, primarily due to differences in school district levies and local assessment districts. Maple Valley's median property tax bill of $7,963 is higher than Washington's median bill by $5,563 and above the national median property tax bill of $2,400.
If your estimate is higher than expected, Ownwell can appeal your Maple Valley assessment — you only pay if we save you money.
About Maple Valley Property Taxes
About Property Taxes in Maple Valley, King, Washington
Maple Valley's median effective property tax rate of 1.11% is higher than the Washington state median of 0.92% and higher than the national median of 1.02%. This rate reflects the King 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 Maple Valley. Homeowners in the 98038 ZIP code carry a median effective rate of 1.11%, while those in 98010 pay 1.10%. This spread — 0.01 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across King County. Understanding which part of Maple Valley you live in can make a meaningful difference to your annual tax bill.
Maple Valley homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the July 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 Maple Valley, King 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 Maple Valley'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 Maple Valley Tax Rate
1.11%
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
0.99%
Median Effective Washington Tax Rate
0.92%
Median Effective United States Tax Rate
1.27%
Property Tax Rates Across Maple Valley, King County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98010 | 1.10% | 1.10% | 1.10% | 1.10% | 1.10% |
| 98038 | 1.10% | 1.10% | 1.11% | 1.13% | 1.15% |
Source: Ownwell
Save on Your Property Taxes and More With Ownwell
$774
Average Annual Tax Savings
Property Tax Assessment Values Across Maple Valley, King County, Washington
When examining property taxes in Maple Valley, 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. King County 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 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 are sent in the spring each year and typically reach your mailbox by the middle of July. 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.
For example, the median home price in Maple Valley is $722,000, with tax bills ranging significantly across the county. ZIP code 98010 has the highest median home price at $954,000.
Property Tax Assessment Values Across Maple Valley, King County, Washington
Source: Ownwell
$275,000
$3,858,750
$7,442,500
Median Maple Valley Market Value
$722,000
Median King County Market Value
$774,000
Median Washington Market Value
$501,600
Median United States Market Value
$274,101
Property Tax Assessment Values Across Maple Valley, King County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98010 | $848,800 | $895,250 | $954,000 | $983,000 | $1,030,000 |
| 98038 | $503,000 | $602,000 | $720,000 | $868,000 | $1,031,000 |
Source: Ownwell
Save on Your Property Taxes and More With Ownwell
$774
Average Annual Tax Savings
Property Tax Bills Across Maple Valley, King County, Washington
Property tax bills in Maple Valley are based on the assessed value of a home and the local tax rates set by taxing authorities in King County. When a home’s market value rises, the assessed value can increase too, which often leads to a higher bill. For homeowners in Maple Valley, the median home price is $722,000, and property tax bills can vary widely, with the 25th percentile at $6,650 and the 75th percentile at $9,641. That is well above the national median property tax bill of $2,400, showing how much local assessments can affect costs.
Your bill is determined by the assessed value, exemptions, and the combined rates from schools, cities, and other local services. If your assessment is too high, you may be paying more than you should.
Ownwell can help homeowners review their assessment, identify savings opportunities, and appeal unfair property taxes to lower their bill.
Median Maple Valley Tax Bill
$7,963
Median King County Tax Bill
$7,644
Median Washington Tax Bill
$4,512
Median United States Tax Bill
$3,209
Property Tax Bills Across Maple Valley, King County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98010 | $9,369 | $9,869 | $10,501 | $10,813 | $11,318 |
| 98038 | $5,305 | $6,639 | $7,955 | $9,619 | $11,394 |
Source: Ownwell
Save on Your Property Taxes and More With Ownwell
$774
Average Annual Tax Savings
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 | |