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King County, Washington property search

Search an address or an owner in King County, Washington with the box at the top of the map, or tap a lot, for its owner, lines and acreage. 636,305 lots are mapped here, covering 1,293,371 acres.

Farmers and landowners in King County received $420,000 in federal farm program payments in 2025, paid to 33 recipients. 188,461 acres of agricultural land here are disclosed as foreign-held, the most by owners from Canada. Crop insurance paid $6,540 in claims for the 2024 crop year.

636,305
Lots mapped
1,293,371
Acres

Land use in King County

Parcels and acreage by land use in King County, Washington
Land useParcelsAcres
Single Family(Res Use/Zone)479,958224,408
Vacant(Single-family)38,738638,304
Townhouse Plat34,1471,378
Apartment6,7646,822
Mobile Home6,44711,504
Duplex6,0241,108
Condominium(Residential)4,6935,788
Single Family(C/I Zone)3,716961
Office Building3,1933,530
Vacant(Commercial)3,1385,683
Warehouse2,5506,983
Retail Store2,5451,169

Federal farm payments in King County

$420K
Paid in 2025
33
Recipients
Federal farm program payments by program in King County, Washington, 2025
ProgramPaid
Marketing Assistance for Specialty Crops$162K
Dairy Margin Coverage$134K
Organic Dairy Marketing Assistance Program$50K
Emergency Livestock Relief Program 2023-24$30K
Emergency Assist Livestock Bees Fish ELAP$20K
CRP Payment - Annual Rental$12K

USDA Farm Service Agency payment files, 2025. Compare farm subsidies by county

Foreign-held farmland in King County

188,461
Acres disclosed
33
Holdings
Foreign-held agricultural land by country in King County, Washington, 2024
CountryAcres
Canada126,698
Netherlands45,438
Australia15,418
Switzerland905
Germany2

Largest disclosed holders

Largest foreign holders of agricultural land in King County, Washington
Holder (country)Acres
JOHN HANCOCK LIFE INSURANCE FOR SEPARATE ACCOUNT #112 (CANADA)97,492
WHITE RIVER FORESTS, L.L.C. (NETHERLANDS)45,438
Green Canyon Timberlands, LLC (CANADA)24,160
ORM TIMBER FUND I, L.P. (AUSTRALIA)15,418
Invenergy Solar Project Development, LLC (CANADA)3,026

USDA Agricultural Foreign Investment Disclosure Act filings, holdings at the end of 2024. Only disclosed interests are counted. See foreign-owned farmland by county

Crop insurance in King County

11
Policies
3,970
Insured acres
$7K
Claims paid
0.05
Loss ratio
Crop insurance claims by crop in King County, Washington, 2024
CropClaims
All Other Crops$7K

USDA Risk Management Agency Summary of Business, 2024 crop year.

Conservation and the power grid

31
CRP acres, 2025
238
Substations
5
345 kV and up
500 kV
Highest voltage

Conservation Reserve Program acres under contract (USDA FSA). Substations in service, from a public copy of the federal HIFLD layer.

Find out who owns a property in King County by address, free, or work out a lot's acreage.

Nearby counties in Washington

  • Pierce County339,908
  • Snohomish County319,265
  • Kitsap County139,602
  • Thurston County131,421
  • Kittitas County40,158
  • Island County52,712
  • Mason County60,542
  • Lewis County57,929

All Washington counties

King County last published these records on August 5, 2026. Assessment records, not a survey.