Keller, Ferry County, Washington Property Taxes
Median Keller, WA effective property tax rate: 0.79%, significantly lower than the national median of 1.02%, but lower than the Washington state median of 0.88%.
Median Keller, WA home value: $79,000
Median annual Keller, WA tax bill: $717, $1,683 lower than the national median property tax bill of $2,400.
How are property taxes in Ferry County calculated?
Property taxes in Keller, 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 Keller’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Keller, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Keller, Ferry County, Washington Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.79%
Estimate Property Tax Bill
$624
$579
Ownwell’s Keller Property Tax Bill Calculator empowers homeowners, real estate investors, and potential buyers to estimate their annual property taxes in Keller with just two data points.
By entering your property's estimated assessed value, our calculator applies Keller’s median effective tax rate to accurately estimate your property tax bill. Note that your property's assessed value — determined by your county — reflects any exemptions you may have, ensuring a precise calculation for your property tax obligations.
This insightful tool helps you understand potential tax liabilities and highlights how Ownwell can assist in reducing property taxes in Ferry County.
For those interested in more localized information, please scroll down to explore city-level trends!
Property Tax Rates Across Keller, Ferry County, Washington
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 Keller Tax Rate
0.79%
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 Ferry County Tax Rate
0.93%
Median Effective Washington Tax Rate
0.88%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Keller, Ferry County, Washington
Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
99140 | 0.77% | 0.78% | 0.79% | 0.82% | 0.85% |
Source: Ownwell
Property Tax Assessment Values Across Keller, Ferry County, Washington
When examining property taxes in Keller, 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 Ferry 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.
In Ferry County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of April. 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 Keller. For example, the median home price in Keller is $79,000, with tax bills ranging significantly across the county. Zip code 99140 has the highest median home price at $79,000.
Property Tax Assessment Values Across Keller, Ferry County, Washington
Source: Ownwell

$75,100
$117,400
$159,700
Median Keller Market Value
$79,000
Median Ferry County Market Value
$101,200
Median Washington Market Value
$482,000
Median United States Market Value
$235,294
Property Tax Assessment Values Across Keller, Ferry County, Washington
Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
99140 | $7,800 | $41,000 | $79,000 | $134,600 | $267,900 |
Source: Ownwell
Property Tax Bills Across Keller, Ferry County, Washington
Median Keller Tax Bill
$717
Median Ferry County Tax Bill
$850
Median Washington Tax Bill
$4,284
Median United States Tax Bill
$2,400
Property Tax Bills Across Keller, Ferry County, Washington
Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
99140 | $305 | $381 | $717 | $1,075 | $2,177 |
Source: Ownwell