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Washington · County guide

King County property tax appeal

A King County property tax appeal starts with the King County Board of Appeals and Equalization, then the Washington State Board of Tax Appeals. The next deadline is Oct 5, 2026 for Notice mailing group 5, King County Board of Appeals and Equalization. There is no filing fee.

This season

Next deadline
Oct 5, 2026
2 days left
Notice mailing group 5 · King County Board of Appeals and Equalization

Opens Aug 6, 2026Closes Oct 5, 2026

Source: Residential notice mailing date (Assessor's 2026 notice mailing dates for residential areas) - King County AssessorLast checked

Check a King County home for free

Enter the address or parcel number from your notice. We compare the assessment with similar homes and show the numbers, whatever they are. You decide and file yourself.

Excellent5.0 out of 5 · Based on reviewsRead reviews →

Reduced my assessment by $112,000!

I couldn’t believe the difference. My property assessment was reduced by $112,000. I’m extremely happy with the outcome!

Spencer CaldwellHomeowner

A $106,300 reduction

We had no idea there was this much room between our original assessment and the final number. Very happy with the outcome.

Megan HollisHomeowner
Where to file
Online (eAppeals) or by mail
Fee
None online
Office address
King County Board of Equalization, 516 Third Avenue, Room 1222, Seattle, WA 98104 · 206-477-3400
Our coverage
Free check available
  • Independent guide — not affiliated with King County or any government agency.
Last updated
October 1, 2026
Sources last checked
October 3, 2026
Status
Verified guide

How we verify facts

When and where do I file a King County property tax appeal?

Who hears a King County appeal?

The stages in order. We are not affiliated with any of these offices.

  1. 1

    King County Board of Appeals and Equalization

    Filing: petition

    2 days left
  2. 2

    Washington State Board of Tax Appeals

    Filing: appeal

Where is the King County office?

King County Board of Appeals and Equalization[3]

Address
King County Board of Equalization, 516 Third Avenue, Room 1222, Seattle, WA 98104

Tax advisor[11]

King County Property Tax Advisor

Hours
8:30-4:30, Monday to Friday

We are not affiliated with this office. Hours can change, so call before you visit.

Which King County filing windows are coming up?

King County filing windows
ClosesAreaWho hears itStatus
Oct 5, 2026Notice mailing group 5King County Board of Appeals and Equalization · Official source · Last checked Oct 3, 20262 days left
Oct 12, 2026Notice mailing group 6King County Board of Appeals and Equalization · Official source · Last checked Oct 3, 20269 days left
Nov 2, 2026Notice mailing group 7King County Board of Appeals and Equalization · Official source · Last checked Oct 3, 2026Open now
Nov 9, 2026Notice mailing group 8King County Board of Appeals and Equalization · Official source · Last checked Oct 3, 2026Open now
Nov 16, 2026Notice mailing group 9King County Board of Appeals and Equalization · Official source · Last checked Oct 3, 2026Open now
Nov 23, 2026Notice mailing group 10King County Board of Appeals and Equalization · Official source · Last checked Oct 3, 2026Open now
Expected Nov 30, 2026 – Jan 29, 2027Notice mailing group 11King County Board of Appeals and Equalization · Official source · Last checked Oct 3, 2026Forecast, not an official date

When were past King County deadlines?

Past King County filing windows
Tax yearWindowOffice
2026Closed September 28, 2026Notice mailing group 4 · King County Board of Appeals and Equalization
2026Closed September 21, 2026Notice mailing group 3 · King County Board of Appeals and Equalization
2026Closed September 14, 2026Notice mailing group 2 · King County Board of Appeals and Equalization
2026Closed August 17, 2026Notice mailing group 1 · King County Board of Appeals and Equalization

When is the King County appeal deadline in 2026?

The Assessor mails value notices one batch of residential areas at a time. Your petition is due 60 days after the mailing date printed on your notice. You can look up your own due date in eAppeals by address or parcel number.

How do I appeal my King County assessment?

  1. Find your due date on your notice or in eAppeals.

  2. File one petition per parcel online in eAppeals or by mail. Petitions by email are not accepted.

  3. Enter your own estimate of market value on the petition.

  4. Send evidence at least 21 business days before your hearing. If you send it early, the Assessor may offer a reduction without a hearing.

What is the hearing like?

Hearings are by phone, or you can let the board decide on the papers. Because of appeal volumes, the hearing may be six months or more after the board accepts your petition.

What happens after the King County board decides?

The board mails its order within 45 days after the hearing. You or the Assessor can appeal to the Washington State Board of Tax Appeals within 30 days of the decision's mailing date.

When is the deadline to appeal a property tax assessment in King County?

The soonest deadline we list: King County Board of Appeals and Equalization — Closes October 5, 2026. King County Board of Appeals and Equalization: King County petitions are due July 1 of the assessment year or 60 days after the mailing date printed on your value notice, whichever is later. They must be postmarked, hand delivered or filed online (eAppeals) by then.

Deadline ruleKing County Board of Appeals and Equalization
King County petitions are due July 1 of the assessment year or 60 days after the mailing date printed on your value notice, whichever is later. They must be postmarked, hand delivered or filed online (eAppeals) by then.[1]
When a filing counts as on timeWashington State Board of Tax Appeals
At the Washington Board of Tax Appeals, most appeals are due within 30 days of the decision's mailing date; electronic filings after 5 p.m. or on weekends/holidays count as the next business day, and late appeals are not accepted.[2]
Deadline detailKing County Board of Appeals and Equalization · Board decision
The Board mails its order to you and the Assessor within 45 days after the hearing.[1]
Deadline detailKing County Board of Appeals and Equalization · Due date lookup
You can look up your own petition due date by address or parcel number in King County's eAppeals.[1]
Deadline detailKing County Board of Appeals and Equalization · When evidence is due
Evidence from you and the Assessor is due 21 business days before the hearing.[3]
Deadline detailKing County Board of Appeals and Equalization · Late filing
The King County Board of Equalization can accept a late petition only for listed good-cause reasons with proof (such as serious illness, 15+ days away, or postal loss); eAppeal technical problems do not qualify.[4]
Deadline detailKing County Board of Appeals and Equalization · Notice mailing
The King County Assessor mails value change notices between May and November, one batch of residential areas at a time.[1]

Who decides a property tax appeal in King County?

In King County you petition the King County Board of Appeals and Equalization. You or the Assessor can appeal its decision to the Washington State Board of Tax Appeals within 30 days of the decision's mailing date. King County Board of Appeals and Equalization: In King County you file a Real Property Petition with the King County Board of Appeals and Equalization (often called the Board of Equalization, BOE).

Appeal steps
In King County you petition the King County Board of Appeals and Equalization. You or the Assessor can appeal its decision to the Washington State Board of Tax Appeals within 30 days of the decision's mailing date.[1]
What the appeal is calledKing County Board of Appeals and Equalization
In King County you file a Real Property Petition with the King County Board of Appeals and Equalization (often called the Board of Equalization, BOE).[5]
What the appeal is calledWashington State Board of Tax Appeals
A King County Board of Equalization decision can be appealed to the Washington State Board of Tax Appeals, generally within 30 days of the decision's mailing date.[2]

How do I file a property tax appeal in King County?

King County Board of Appeals and Equalization: File online with eAppeals or by mail. The Board does not accept petitions by email. King County Board of Appeals and Equalization · Separate parcels: File a separate petition for each parcel.

How to fileKing County Board of Appeals and Equalization
File online with eAppeals or by mail. The Board does not accept petitions by email.[1]
How to fileKing County Board of Appeals and Equalization · Separate parcels
File a separate petition for each parcel.[1]
How to fileWashington State Board of Tax Appeals
Washington Board of Tax Appeals forms are filed by email or mail before the deadline, with a copy of the Board of Equalization order; e-filings after 5 p.m. count as the next business day.[2]
FormsKing County Board of Appeals and Equalization · Real property petition
The paper form is the King County Real Property Petition. You enter your own estimate of fair market value in section 2(b).[5]
Filing feeKing County Board of Appeals and Equalization
There is no fee to file a King County Board of Equalization petition online.[6]
Who may fileKing County Board of Appeals and Equalization
Another person can file an appeal for the owner only with the owner's written power of attorney; an attorney-at-law does not need the POA section.[5]
Informal reviewKing County Board of Appeals and Equalization · Assessor offer
If you send your evidence early, the Assessor may offer a reduction without a hearing.[3]
HearingsKing County Board of Appeals and Equalization
Hearings are by phone, or you can let the board decide on the papers without attending (administrative review).[1]
HearingsKing County Board of Appeals and Equalization · Schedule
After the board accepts a petition, the hearing date may be 6 months or more away because of appeal volumes.[1]
HearingsWashington State Board of Tax Appeals
The Washington Board of Tax Appeals is currently scheduling hearings about 18 to 24 months after filing.[2]

Upcoming appeal deadlines in every county we track

What evidence counts in King County, and can the value go up?

What evidence counts in King County?

Market value evidence only: sales of similar homes in your neighborhood that sold closest to January 1, or your own recent purchase. Other homes' assessments, percentage increases and the tax amount can't be considered.

Can my King County value go up if I appeal?

Yes. The board must raise a value it finds too low, after notice.

Exemptions and deferrals to check first

Senior / disabled exemption

Requires annual income under $84,000 (2025 income), plus age, disability or veteran and occupancy rules.

Senior / disabled deferral

Postpones (doesn't reduce) tax for eligible owners; the deferred tax becomes a lien.

What evidence can I use in King County?

King County Board of Appeals and Equalization · Comparable sales: The King County board's most useful evidence is sales of similar homes in your neighborhood that sold closest to January 1, or a sale of your own home. King County Board of Appeals and Equalization · Burden of proof: To win, you must show by clear, cogent and convincing evidence that the Assessor's value is wrong.

Evidence acceptedKing County Board of Appeals and Equalization · Comparable sales
The King County board's most useful evidence is sales of similar homes in your neighborhood that sold closest to January 1, or a sale of your own home.[1]
Evidence ruleKing County Board of Appeals and Equalization · Burden of proof
To win, you must show by clear, cogent and convincing evidence that the Assessor's value is wrong.[5]
Evidence ruleKing County Board of Appeals and Equalization · Sale dates
The King County petition says sales within five years of the petition date are considered, and every sale must be adjusted to its January 1 value.[5]
Evidence not acceptedKing County Board of Appeals and Equalization · Comparable assessments
The King County board cannot consider comparisons with other properties' assessments, percentage increases, hardship or the amount of tax. Only market value evidence counts.[1]
Evidence not acceptedKing County Board of Appeals and Equalization · eAppeals guidance
eAppeals warns that tax amounts, other properties' assessed values and prior-year values are not evidence of market value; sales of similar properties are.[6]

Can my assessment go up if I appeal in King County?

King County Board of Appeals and Equalization: Yes. The board must raise a value it finds too low (after notice), and if you compare your assessment with others, it may review whether all of them are at true and fair value.

Can the value go up?King County Board of Appeals and Equalization
Yes. The board must raise a value it finds too low (after notice), and if you compare your assessment with others, it may review whether all of them are at true and fair value.[5]

Which exemptions can lower my bill without an appeal?

King County's senior/disabled exemption requires annual income under $84,000 (2025 income, Social Security included), plus age, disability or veteran and occupancy rules.

Senior exemption
King County's senior/disabled exemption requires annual income under $84,000 (2025 income, Social Security included), plus age, disability or veteran and occupancy rules.[7]

Which Washington rules apply in King County?

These rules are the same in every Washington county. Each link opens the rule on the Washington page.

What do King County property taxes and assessments look like?

Figures from public records and the Census, each with its source. They describe the county's homes as a group, not the value of any one home.

What do homeowners in King County pay in property tax?

The median owner-occupied home in King County was worth $859,900, and the median property tax its owners paid was $7,114 a year, according to the Census Bureau's American Community Survey.

Median home value
$859,900
Margin of error ±$4,853.
Median property tax paid per year
$7,114
Margin of error ±$40.
Median tax as a share of median value
0.83%
A ratio of two medians, not a tax rate. Your own bill depends on your assessment and local levies.
Owner-occupied homes
521,805
Margin of error ±3,926.

These are survey estimates of what owners reported about their own homes. They are not assessed values, not tax rates, and not an opinion of what any home is worth.

They cannot tell you whether your own assessment is fair. That takes a comparison with similar homes, which we offer only in counties we have researched.

From the county's assessment and appeal records

Homes in the county's assessment records
520,687
Median assessed value
$874,000
Middle half of assessed values
$644,000 to $1,291,000

Source: The county's open assessment data, aggregated by us (tax year 2026 values on assessment notices). Our calculation from public records; not an opinion of any home's value.

How King County home assessments are spread

Assessed values of 520,687 homes in the property classes our free check covers (2, 3, 4, 6, 29), tax year 2026 values on assessment notices. Half are between $644,000 and $1,291,000; the median is $874,000. The last bar holds everything above it.Source: Assessment records from the county's open data (tax year 2026 values on assessment notices), retrieved Sep 27, 2026; our calculation.

Median home value: King County compared

  1. King County$859,900
  2. Typical Washington county$408,900
  3. Typical US county$185,300

King County $859,900; Typical Washington county $408,900; Typical US county $185,300

Census survey medians for owner-occupied homes. "Typical" is the middle county of the 39 in Washington and of all US counties.Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25077.

Median property tax paid: King County compared

  1. King County$7,114
  2. Typical Washington county$3,050
  3. Typical US county$1,619

King County $7,114 a year; Typical Washington county $3,050 a year; Typical US county $1,619 a year

Census survey medians for owner-occupied homes. "Typical" is the middle county of the 39 in Washington and of all US counties.Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25103.

Median home assessment by area

  1. Medina/Hunts Point/Yarrow Point/Clyde Hill$3,997,000
  2. NW Bellevue/Enatai/Meydenbauer/Beaux Arts$2,565,500
  3. West Mercer Island$2,352,000
  4. East Mercer Island$2,147,000
  5. Kirkland$1,970,500
  6. Laurelhurst/Windermere/View Ridge$1,761,000
  7. Madison Park / Leschi / Mt. Baker$1,748,000
  8. Bridle Trails/Wilburton/Central Bellevue$1,706,000
  9. W. Hill Auburn$566,000
  10. City of Enumclaw$558,000
  11. Des Moines/Seatac/West Kent$557,000
  12. Algona/Pacific/Lakeland Hills$556,000
  13. White Center / Burien$554,000
  14. Twin Lakes$535,000
  15. Baring/Skykomish$489,000
  16. Auburn$478,000

The 8 highest and 8 lowest of 89.

Median assessed value by area: highest Medina/Hunts Point/Yarrow Point/Clyde Hill ($3,997,000), lowest Auburn ($478,000).

Median assessed value of homes in the property classes our free check covers (2, 3, 4, 6, 29) for each area with at least 50 such homes, tax year 2026 values on assessment notices.Source: Assessment records from the county's open data (tax year 2026 values on assessment notices), retrieved Sep 27, 2026; our calculation.

How much home assessments changed, by area

  1. NW Bellevue/Enatai/Meydenbauer/Beaux Arts+1.8%
  2. Columbia City / Rainier Valley+1.4%
  3. Normandy Park+1.2%
  4. Vashon+1.1%
  5. Burien+1.0%
  6. Delridge / Georgetown / South Park+1.0%
  7. High Point / Highland Park / Westwood+0.9%
  8. Lake City/Matthews Beach+0.8%
  9. Somerset/Eastgate−5.7%
  10. Bothell−7.0%
  11. Bridle Trails/Wilburton/Central Bellevue−7.5%
  12. Lake Sammamish/Redmond−7.9%
  13. Sherwood/Bel-Red/SW Redmond−8.8%
  14. Inglewood/Finn Hill/Juanita−9.6%
  15. East Kirkland/Rose Hill−10.4%
  16. Kingsgate/Queensgate−10.8%

The 8 highest and 8 lowest of 89.

Median change in assessed value from tax year 2025 final values to tax year 2026 values on assessment notices: West Shoreline −4.7%, Central Shoreline −3.2%, East Shoreline −3.2%, Lake Forest Park/Kenmore −5.1%, Haller Lake/North Greenwood/Crown Hill −2.9%, Northgate/Maple Leaf −2.3% and more.

Median change per home from tax year 2025 final values to tax year 2026 values on assessment notices, for homes with a value at both stages. 89 areas have the newer values so far.Source: Assessment records from the county's open data (tax year 2026 values on assessment notices), retrieved Sep 27, 2026; our calculation.

King County filing windows on a calendar

  1. Notice mailing group 5Oct 5, 2026 · King County Board of Appeals and Equalization · Open now
  2. Notice mailing group 6Oct 12, 2026 · King County Board of Appeals and Equalization · Open now
  3. Notice mailing group 7Nov 2, 2026 · King County Board of Appeals and Equalization · Open now
  4. Notice mailing group 8Nov 9, 2026 · King County Board of Appeals and Equalization · Open now
  5. Notice mailing group 9Nov 16, 2026 · King County Board of Appeals and Equalization · Open now
  6. Notice mailing group 10Nov 23, 2026 · King County Board of Appeals and Equalization · Open now
  7. Notice mailing group 11Expected Nov 30, 2026 – Jan 29, 2027 · King County Board of Appeals and Equalization · Forecast, not an official date

The dashed line marks today.

Notice mailing group 5: Oct 5, 2026; Notice mailing group 6: Oct 12, 2026; Notice mailing group 7: Nov 2, 2026; Notice mailing group 8: Nov 9, 2026; Notice mailing group 9: Nov 16, 2026; Notice mailing group 10: Nov 23, 2026; Notice mailing group 11: Expected Nov 30, 2026 – Jan 29, 2027

Each bar is a filing window from its opening day to its last day. Forecasts show the expected closing range and are not official dates.Source: the official calendars and rules cited in the sources list below.

How King County property tax is figured

Tax equals the assessed value divided by 1,000, times the levy rate for your 4-digit levy code.

King County appeals at a glance

Appealed values with some reduction
about 25%

What do home values and property taxes look like in King County?

About 25% of values appealed to the King County board get some reduction. Formula: King County's estimate: tax = assessed value divided by 1,000, times the levy rate.

Appeals lowered by the board
About 25% of values appealed to the King County board get some reduction.[1]
Property tax rateFormula
King County's estimate: tax = assessed value divided by 1,000, times the levy rate.[8]
Property tax rateLevy code
King County publishes one tax rate per 4-digit levy code, in dollars per $1,000 of value (for 2026 taxes, Seattle levy code 0010 is $9.90845). Seniors with the exemption pay the lower 'senior rate'.[9]

Homes in King County

From the Census Bureau's American Community Survey: how old the homes are, what kind they are, what owners say they are worth and the property taxes they pay. These figures describe all homes together, not any one home.

Median year built
1983
All housing units, owned and rented
Single-family houses, detached or attached
55%
of 1,003,284 housing units
Owned homes with a mortgage or similar loan
69%
of 521,805 owner-occupied homes

Home values reported by owners

  1. Less than $50,0001%
  2. $50,000 to $99,9991%
  3. $100,000 to $199,9991%
  4. $200,000 to $299,9992%
  5. $300,000 to $399,9994%
  6. $400,000 to $499,9997%
  7. $500,000 to $749,99923%
  8. $750,000 to $999,99922%
  9. $1,000,000 to $1,999,99929%
  10. $2,000,000 or more8%

Home values reported by owners in King County: Less than $50,000 1%; $50,000 to $99,999 1%; $100,000 to $199,999 1%; $200,000 to $299,999 2%; $300,000 to $399,999 4%; $400,000 to $499,999 7%; $500,000 to $749,999 23%; $750,000 to $999,999 22%; $1,000,000 to $1,999,999 29%; $2,000,000 or more 8%.

Share of owner-occupied homes in each value range. Owners give this value in the survey; it is not the assessed value.Source: U.S. Census Bureau, American Community Survey, 2020–2024 5-year estimates, table B25075.

Property taxes owners pay a year

  1. No real estate taxes2%
  2. Less than $8003%
  3. $800 to $1,4992%
  4. $1,500 to $1,9991%
  5. $2,000 to $2,9994%
  6. $3,000 or more87%

Property taxes owners pay a year in King County: No real estate taxes 2%; Less than $800 3%; $800 to $1,499 2%; $1,500 to $1,999 1%; $2,000 to $2,999 4%; $3,000 or more 87%.

Share of owner-occupied homes by the real estate taxes paid in a year, with or without a mortgage.Source: U.S. Census Bureau, American Community Survey, 2020–2024 5-year estimates, table B25102.

Source: U.S. Census Bureau, American Community Survey (2020–2024 5-year estimates, tables B25075, B25102, B25035, B25024 and B25081), retrieved Oct 1, 2026. Survey estimates have a margin of error.

More questions about King County property tax appeals

When is the King County property tax appeal deadline?

The King County Board of Appeals and Equalization window closes October 5, 2026. King County Board of Appeals and Equalization: King County petitions are due July 1 of the assessment year or 60 days after the mailing date printed on your value notice, whichever is later. They must be postmarked, hand delivered or filed online (eAppeals) by then.[1][13]

Is there a fee to file a property tax appeal in King County?

There is no fee to file a King County Board of Equalization petition online.[6]

Where do I file a property tax appeal in King County?

File online with eAppeals or by mail. The Board does not accept petitions by email.[1]

Can my assessed value go up if I appeal in King County?

Yes. The board must raise a value it finds too low (after notice), and if you compare your assessment with others, it may review whether all of them are at true and fair value.[5]

What other rules apply in King County?

Assessor download: King County's data download requires acknowledging that state law (RCW 42.56.070(9)) bars commercial use of lists of individuals. The product never stores any person's name from these files. Seniors and people with disabilities: King County's senior/disabled deferral requires age 60+ (or disability retirement), owner-occupancy at least nine months a year, 2025 household income of $88,998 or less, and enough equity. Deferred tax is a lien.

Data terms of useAssessor download
King County's data download requires acknowledging that state law (RCW 42.56.070(9)) bars commercial use of lists of individuals. The product never stores any person's name from these files.[12]
Tax deferralSeniors and people with disabilities
King County's senior/disabled deferral requires age 60+ (or disability retirement), owner-occupancy at least nine months a year, 2025 household income of $88,998 or less, and enough equity. Deferred tax is a lien.[7]
Paying the tax while you appealKing County Board of Appeals and Equalization
If King County property taxes fall due before your Board of Equalization hearing or decision, pay them by the deadline to avoid interest and penalties.[3]
Paying the tax while you appealKing County Board of Appeals and Equalization · Refund
If the King County Board of Equalization lowers your value, the Treasurer sends a revised tax statement or refunds taxes you already paid for the year.[1]

Property tax guides for King County homeowners

Counties next to King County

Washington property tax appeals: all counties

Check a King County home free

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You decide and file yourself.

Where do these facts come from?

  1. [1]How to appeal a property tax assessment - King County Board of Appeals and EqualizationOfficial guide or FAQ · last checked Sep 30, 2026
  2. [2]How to file an appeal - Washington State Board of Tax AppealsOfficial guide or FAQ · last checked Sep 29, 2026
  3. [3]How to appeal your valuation - King County, WashingtonOfficial guide or FAQ · last checked Sep 30, 2026
  4. [4]Late Filing Instructions to the King County Board of Appeals and Equalization (PDF, 2026)Official notice, form, calendar or rules · last checked Sep 30, 2026
  5. [5]Real Property Petition to the King County Board of Appeals and Equalization (2025 form, adapted from REV 64 0075e 4/10/2025)Official notice, form, calendar or rules · last checked Sep 24, 2026
  6. [6]eAppeals - Online Property Appeals, King County Board of EqualizationOfficial guide or FAQ · last checked Sep 24, 2026
  7. [7]Senior or disabled exemptions and deferrals - King County AssessorOfficial guide or FAQ · last checked Sep 24, 2026
  8. [8]Taxing districts codes and levies - King County AssessorOfficial guide or FAQ · last checked Sep 24, 2026
  9. [9]2026 King County Codes and Levies (levy code, levy rate, senior rate), revised 2/12/2026 - King County AssessorOfficial notice, form, calendar or rules · last checked Sep 24, 2026
  10. [10]Board of Appeals and Equalization - King County, WashingtonOfficial guide or FAQ · last checked Oct 1, 2026
  11. [11]King County Board of Equalization: eAppeals - FAQOfficial guide or FAQ · last checked Sep 30, 2026
  12. [12]Assessments Data Download - Disclaimer (King County Department of Assessments; page updated Oct. 18, 2013)Official notice, form, calendar or rules · last checked Sep 24, 2026
  13. [13]Residential notice mailing date (Assessor's 2026 notice mailing dates for residential areas) - King County AssessorOfficial notice, form, calendar or rules · last checked Sep 28, 2026
  14. [14]RCW 84.40.030 Basis of valuation, assessment, appraisal (Wayback snapshot 2026-06-26 of app.leg.wa.gov)Statute or regulation · last checked Sep 24, 2026
  15. [15]RCW 84.40.020 Assessment date (Wayback snapshot 2026-08-14 of app.leg.wa.gov)Statute or regulation · last checked Sep 24, 2026
  16. [16]WAC 458-14-005 Definitions (Wayback snapshot 2026-08-08 of app.leg.wa.gov)Statute or regulation · last checked Sep 24, 2026
  17. 17.County open data: king assessmentsRetrieved Sep 27, 2026; aggregated by us for the charts above.
  18. 18.County open data: king parcelsRetrieved Sep 27, 2026; aggregated by us for the charts above.
  19. 19.U.S. Census Bureau, ACS 2020–2024 5-year estimates, table B25077: Median value (dollars), owner-occupied housing units — King County, Washington
  20. 20.U.S. Census Bureau, ACS 2020–2024 5-year estimates, table B25103: Median real estate taxes paid, owner-occupied housing units — King County, Washington
  21. 21.U.S. Census Bureau, ACS 2020–2024 5-year estimates, table B25003: Tenure (owner- and renter-occupied housing units) — King County, Washington

Data credits: King County GIS · Census ACS (public domain) · Census county adjacency (public domain)

Not affiliated with King County or any government agency. Not legal advice. Not an appraisal.

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