Benton County, Washington Property Taxes
Median Benton County effective property tax rate: 0.98%, slightly lower than the national median of 1.02%.
Median Benton County home value: $282,560
Median annual Benton County tax bill: $2,407, $7 higher than the national median property tax bill of $2,400.
How are property taxes in Benton County calculated?
Property taxes in Benton County 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 your county's property tax system, exemptions, and reduction opportunities can lead to significant savings. Whether you live in Kennewick or another part of Benton County, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Benton County, Washington Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.98%
Estimate Property Tax Bill
$2,769
$2,570
Property Tax Rates Across Benton 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 Benton County 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 Washington Tax Rate
0.88%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Benton County, Washington
City | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
Benton City | 0.87% | 0.92% | 1.03% | 1.12% | 1.33% |
Grandview | 1.00% | 1.00% | 1.01% | 1.12% | 1.13% |
Kennewick | 0.70% | 0.71% | 0.71% | 0.82% | 0.88% |
Paterson | 0.72% | 0.72% | 0.73% | 0.74% | 0.75% |
Plymouth | 0.80% | 0.80% | 0.81% | 0.83% | 0.85% |
Prosser | 1.11% | 1.12% | 1.15% | 1.19% | 1.20% |
Richland | 0.99% | 0.99% | 1.00% | 1.00% | 1.01% |
Sunnyside | N/A | N/A | N/A | N/A | N/A |
West Richland | 1.11% | 1.12% | 1.13% | 1.21% | 1.26% |
Source: Ownwell
Property Tax Assessment Values Across Benton County, Washington
When examining property taxes in Benton County, 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 Benton County Assessor's Office 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 Benton 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 Benton County.
For example, the median tax bill in Benton County is $2,400, with tax bills ranging significantly across the county. West Richland has the highest median home price at $323,635.
Property Tax Assessment Values Across Benton County, Washington
Source: Ownwell

$66,485
$364,868
$663,250
Median Benton County Market Value
$282,560
Median Washington Market Value
$482,000
Median United States Market Value
$235,294
Property Tax Assessment Values Across Benton County, Washington
City | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
Benton City | $67,968 | $140,700 | $220,650 | $304,350 | $406,270 |
Grandview | $108,266 | $147,040 | $203,320 | $274,210 | $332,082 |
Kennewick | $111,690 | $211,630 | $278,120 | $359,150 | $480,000 |
Paterson | $10,687 | $32,658 | $66,485 | $138,225 | $180,868 |
Plymouth | $17,021 | $37,302 | $102,915 | $195,850 | $268,363 |
Prosser | $45,000 | $122,695 | $197,020 | $282,945 | $399,579 |
Richland | $153,410 | $243,960 | $319,010 | $419,380 | $530,330 |
Sunnyside | N/A | N/A | N/A | N/A | N/A |
West Richland | $55,000 | $223,332 | $323,635 | $429,522 | $543,643 |
Source: Ownwell
Property Tax Bills Across Benton County, Washington
Median Benton County Tax Bill
$2,407
Median Washington Tax Bill
$4,284
Median United States Tax Bill
$2,400
Property Tax Bills Across Benton County, Washington
City | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
Benton City | $653 | $1,449 | $2,255 | $3,134 | $4,217 |
Grandview | $743 | $1,497 | $2,151 | $2,818 | $3,471 |
Kennewick | $530 | $1,550 | $2,048 | $2,655 | $3,662 |
Paterson | $77 | $202 | $443 | $967 | $1,290 |
Plymouth | $133 | $288 | $629 | $1,568 | $2,150 |
Prosser | $369 | $1,262 | $2,227 | $3,231 | $4,562 |
Richland | $1,054 | $2,368 | $3,117 | $4,120 | $5,218 |
Sunnyside | N/A | N/A | N/A | N/A | N/A |
West Richland | $574 | $2,532 | $3,810 | $4,914 | $6,260 |
Source: Ownwell