Benton County, WA Property Records
Property records in Benton, Washington document ownership, assessed values, parcel boundaries, legal descriptions, tax information, transfers, and recorded instruments such as deeds and liens. These records are useful for buyers, sellers, property owners, researchers, and professionals who need to verify ownership, review tax assessments, confirm parcel details, or investigate a property’s history. Official Benton property records are available through Benton County government offices, including the Assessor’s Office for parcel and valuation information and the Auditor’s Office for recorded documents. Users can begin with the county’s official Benton property records search to look up parcel-level information and related assessment details.
Benton County, WA Property Records & Statistics
Benton County has a median rent of $1,141, above the Washington median of $1,019 and well above the national figure of $840.25. Renter-occupied housing accounts for 28.74% of occupied homes, higher than the state share of 25.55% and the national 21.81%, so rentals are a meaningful part of the Tri-Cities housing market.
The median home value is $329,650, slightly higher than the state median of $318,300 and nearly double the national median of $173,750. The county's median property tax rate of 0.84% is above the state's 0.77% and the national 0.74%, so owners pay a bit more each year relative to home value than the typical Washington or U.S. owner.
Median household income is $87,256, well above the state's $68,789 and the national $65,108. That stronger income level helps explain how the county supports higher rents and home values. The unemployment rate of 3.13% is a little higher than the state's 3.02% and the national 2.87%.
In all, Benton County combines high incomes with above-average housing costs and tax rates, along with a larger rental share and slightly elevated unemployment.
Median Rent
Median Property Tax Rate
Median Home Value
Median Income
Unemployment Rate
Renter Occupied Housing
Property Records, Assessments, and Valuations in Benton
Benton County has extensive property records covering assessments, recorded deeds and mortgages, valuations and foreclosure filings. The county has 82,435 total parcels, including 70,041 residential and 4,453 commercial parcels, with tax records covering 98.27% of the population for the 2024 assessment year. The Recorder holds 169,162 deeds and 119,423 mortgages, and valuation data is available for 60,159 properties.
| Key Data | Details |
|---|---|
| Total Parcels | 82,435 |
| Residential Parcels | 70,041 |
| Commercial Parcels | 4,453 |
| Tax Record Coverage | 98.27% |
| Assessment Year | 2024 |
| Deed Records | 169,162 |
| Mortgage Records | 119,423 |
| Properties with Valuation Data | 60,159 |
| Latest Valuation Update | August 19, 2025 |
| Notice of Trustee Sale Records | 3,481 |
Assignment and Release Records
Assignment and release records show what happens to a mortgage after it is recorded. An assignment documents the transfer of a loan from one lender or servicer to another, and a release documents that the debt was paid and the lien removed.
Benton County has 189,132 assignment and release records. They include 17,943 assignment documents recorded from December 17, 2004, to September 4, 2025, and 170,750 release documents recorded from May 1, 2001, to September 4, 2025, along with 439 other documents.
For property research, these records help confirm that earlier mortgages have been released, identify the current holder of a loan, and reveal liens that may remain open before a sale or refinance. The long date ranges allow a full look at a property's financing history.
How to Search Benton County, WA Property Records
Benton County recorded documents are maintained by the Benton County Auditor's Office at 620 Market Street, Prosser, WA 99350. It is open Monday through Friday, 8:30 AM to 4:30 PM, and the phone number is 509-786-5620. The county has 82,435 parcels, 169,162 deed records and 119,423 mortgage records.
The Benton County Auditor document recording page explains recording requirements and services. To look up recorded deeds, mortgages, assignments and releases, use the Benton County recorded document search. Companies that submit documents electronically can use the Benton County eRecording information.
Start by entering a name, document type or date range in the recorded document search, then open results to review document details. Deed records go back to January 7, 2003, and mortgages to January 6, 2003, with filings through August 28, 2025. For parcel and assessment details, check the Assessor through the Benton County website, and keep the parcel number or address handy.
If something doesn't show online, call the Auditor's Office for help.
Benton Registrar of Deeds
The Benton County Probate Office is located at 620 Market Street, Prosser, WA, 99350 and can be reached at 509-786-5620. Office hours are Monday-Friday 8:30 AM – 4:30 PM. Records can be accessed through bentonauditor.com or the official website bentonauditor.com.
Benton County Auditor's Office
Benton County Property Records FAQ
How can I search Benton County property records by address?
Parcel lookups by address are handled through the Benton County Assessor. The Auditor's recorded document search finds documents by name, type or date rather than address. If you have only an address, identify the parcel and owner first, then search documents. Call 509-786-5620 for help.
How can I find property owners in Benton County?
Owner names appear on assessor parcel records and recorded deeds. Use the Benton County recorded document search to look up deeds that transferred ownership. The county has 169,162 deed records, with filings from January 7, 2003, through August 28, 2025.
How can I check a property's assessed value in Benton County?
Assessed values come from the Benton County Assessor, and the records reflect the 2024 assessment year. Look up a parcel through the Assessor on the county website. The Washington Department of Revenue explains assessments, levies and how to appeal a valuation.
Where can I find Benton County property tax bills and payment records?
The county Treasurer bills and collects property taxes. Find statements and payment options through the Treasurer's page on the Benton County website, using the parcel number. The Auditor's Office at 509-786-5620 can point you to the correct department if you can't find a bill.
How can I find deeds and other recorded documents in Benton County?
Search the Benton County recorded document search for deeds, mortgages, assignments and releases. Recording details are on the Auditor's document recording page. The Auditor's Office is at 620 Market Street, Prosser, open Monday through Friday, 8:30 AM to 4:30 PM.
Where can I access Benton County parcel maps and GIS information?
Benton County publishes parcel and GIS mapping through its county government website. Maps show parcel lines for reference only and aren't a legal survey. For boundary issues, contact the Assessor's office or a licensed surveyor.
How can I check permits and zoning information in Benton County?
Unincorporated Benton County handles building permits and zoning through its planning and building departments. Properties inside cities such as Kennewick, Richland or Prosser are governed by that city's rules, so contact the local city office for permits and zoning.
How can I create a list of property owners in Benton County?
Online searches work one record at a time. For a list of owners, request parcel and ownership data from the Assessor, and call the Auditor's Office at 509-786-5620 for information about bulk recorded-document requests. Staff can explain what's available and any fees.