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Oregon · Willamette Valley Wine Country · #543 Most Populous County in the US
Yamhill County, Oregon
Oregon's premier wine county in the northern Willamette Valley - from McMinnville's International Pinot Noir Celebration and the Evergreen Aviation & Space Museum's Spruce Goose to the wine trails of Dundee Hills, Chehalem Mountains, and Ribbon Ridge AVAs, and a county whose volcanic soils produce some of the world's finest Pinot Noir. Property tax, courts, public records, and senior services for Yamhill County residents.
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Tell us your goal and we'll guide you step-by-step to the right office, forms, and official resources.
Yamhill County's assessment ratio means effective tax rates are low — but incorrect appraisals still cost money. Ownwell manages the appeal with no upfront cost.
Office: Yamhill County Emergency Management – 2050 NE Lafayette Ave, Suite B, McMinnville, OR 97128 | Mail: 535 NE 5th St | (503) 434-7340 | [email protected]; Director Brian Young; maintains an Emergency Operations Plan, Community Wildfire Protection Plan, and a Yamhill County Emergency Alert Program.
Roads: OR-99W and OR-18 serve McMinnville, the county seat, in the northern Willamette Valley.
Notes: Yamhill County is at the heart of Oregon’s premier wine region, roughly 40 miles southwest of Portland.
Business & Permits
BUILDING & PERMITS
Office: Yamhill County Planning – Courthouse, 535 NE 5th St, McMinnville, OR 97128; confirm current phone via yamhillcounty.gov.
Notes: Yamhill County is genuinely, internationally renowned as the epicenter of Oregon’s Pinot Noir wine country – the Willamette Valley’s volcanic, Cascade-lava-derived soils and mild climate have produced over 220 wineries and vineyards in and around McMinnville, including internationally recognized labels. McMinnville is also home to the Evergreen Aviation & Space Museum, a genuine, world-class collection of over 150 aircraft and spacecraft including Howard Hughes’s Hughes H-4 Hercules “Spruce Goose” – the largest flying boat ever built, on permanent display since the museum’s 2001 founding – plus an SR-71 Blackbird and a Titan II Space Launch Vehicle.
Veterans Services
VETERANS SERVICES
Office: Yamhill County Veterans’ Services – 400 NE Baker St, McMinnville, OR 97128 | (503) 434-7503 | Fax: (503) 435-2667; CVSOs Jerry Wilson and Claudia Castro; all services free of charge; van rides to the Portland VA Hospital available via DAV, (503) 721-7804 (call 4 business days ahead).
Federal: Portland VA Medical Center service area.
Libraries
LIBRARIES
McMinnville: McMinnville Public Library – 225 NW Adams Street, McMinnville, OR 97128 | (503) 435-5562; recognized as a Yamhill County Mental Health Safe Zone; member of the Chemeketa Cooperative Regional Library Service (CCRLS).
Parks & Recreation
PARKS & RECREATION
Key Assets: The Evergreen Aviation & Space Museum (with the Spruce Goose) and the surrounding Willamette Valley wine country – including the Dundee Hills and dozens of world-class Pinot Noir producers – are the county’s premier attractions.
Notes: The genuine Spruce Goose/Evergreen Aviation Museum and Oregon Wine Country heritage are among the most internationally recognized facts covered anywhere in this project.
GIS & Maps
GIS & MAPS
Appraisal/Parcel Search: Yamhill County Assessor – Courthouse, 535 NE 5th St, McMinnville, OR 97128.
Animal Services
ANIMAL SERVICES
County: Yamhill County Dog Control – licensing and redemption services relocated to the Homeward Bound Pets Spay and Neuter Clinic in downtown McMinnville; (503) 434-7538 or (503) 472-0341 ext. 4 | [email protected] | Hours: Mon-Thu 8 AM-5 PM (closed 1-2 PM), self-funded facility.
Nonprofit: Homeward Bound Pets Humane Society – 10601 SE Loop Road, McMinnville, OR 97128 | (503) 472-0341; a private 501(c)(3), serving since 1975 as Oregon’s first no-kill shelter.
Environmental & Waste
ENVIRONMENTAL / WASTE MANAGEMENT
Office: Yamhill County Public Works – confirm current contact via yamhillcounty.gov.
NOTES: Yamhill County is the eighth and final county in the Oregon v2 redo’s fifth batch (Tillamook, Umatilla, Union, Wallowa, Wasco, Washington, Wheeler, Yamhill) – completing the full 36-county Oregon redo. The genuine Spruce Goose/Evergreen Aviation Museum and world-renowned Pinot Noir wine country are among the most internationally recognized facts covered anywhere in this project. All contact information above was sourced via web search as of early August 2026 and should be reconfirmed directly with the relevant office before a visit, deadline-sensitive filing, or emergency-adjacent decision.
About Yamhill County
Yamhill County is Oregon’s seventh most populous county and the 543rd most populous in the United States, covering 718 square miles of the northern Willamette Valley.
McMinnville (the county seat, population ~34,000) is the Willamette Valley wine country’s largest city and its most visited – a charming downtown on Third Street with acclaimed restaurants, wine bars, tasting rooms, and the annual International Pinot Noir Celebration (IPNC) – one of the world’s most prestigious Pinot Noir events, drawing winemakers and enthusiasts from Burgundy, New Zealand, California, and across the globe each July.
The Evergreen Aviation & Space Museum in McMinnville houses the Spruce Goose – Howard Hughes’s H-4 Hercules flying boat, the largest wooden aircraft ever built, with a 320-foot wingspan that remains the largest ever flown. The museum and adjacent water park are among Oregon’s most unusual tourist attractions.
Yamhill County’s wine AVAs – Dundee Hills, Chehalem Mountains, Ribbon Ridge, McMinnville AVA, and Yamhill-Carlton AVA – have produced Pinot Noir wines that have challenged Burgundy’s primacy in international competition. The region’s unique Jory and Willakenzie volcanic soils, combined with the marine influence of the Coast Range, produce conditions particularly suited to cool-climate varietals. Domaine Drouhin Oregon, Bethel Heights, Eyrie Vineyards (which first planted Pinot Noir in Oregon in 1965), and dozens of other acclaimed producers are headquartered in Yamhill County.
Newberg (population ~24,000) is Yamhill County’s second city – a rapidly growing community on the northern county edge that has become a bedroom community for Portland metro workers seeking rural wine country character at relative affordability.
All Services
Browse every category and topic available for this county.
Oregon’s Measure 50 (1997) caps annual increases in Maximum Assessed Value (MAV) at 3% regardless of market appreciation.
The appeal process: File with the Yamhill County Board of Property Tax Appeals (BOPTA) at 535 NE 5th Street, McMinnville, OR 97128, phone 503-434-7521. Filing window: October 1 through December 31.
Oregon estate tax: Above $1 million at rates from 10% to 16%. No OR inheritance tax. The $1M threshold means wine country property owners with appreciated land plus retirement assets face significant estate tax planning needs.
OWNWELL CTA: Yamhill County BOPTA: October 1–December 31. Measure 50 creates large MAV/RMV gaps – appeal focuses on RMV being overstated. OR estate tax above $1M – particularly relevant for appreciated wine country properties. Ownwell manages the appeal with no upfront cost.
Recommended
Yamhill County BOPTA: October 1–December 31. Measure 50 creates large MAV/RMV gaps - appeal focuses on RMV being overstated. OR estate tax above $1M - particularly relevant for appreciated wine country properties. Ownwell manages the appeal with no upfront cost.
Courts & Legal
Courts & Legal
Circuit Court (Probate): The Yamhill County Circuit Court at 535 NE 5th Street, McMinnville, OR 97128, phone 503-434-7530, handles probate, estate administration, guardianships, and all civil and criminal matters.
County Clerk: The Yamhill County Clerk at 535 NE 5th Street, phone 503-434-7518, maintains real property records and election rolls. Land records searchable online.
Senior Services
The Yamhill County Health and Human Services, Senior Services at 710 NE 2nd Street, McMinnville, OR 97128, phone 503-434-7501, serves the county’s senior population. Willamette Valley Medical Center in McMinnville provides significant geriatric care.
Recommended
Assisted living, memory care, and independent living across Yamhill County - from McMinnville and Newberg to Sheridan, Amity, and the Willamette Valley wine country communities.
Marriage & Vital Records
Marriage licenses, divorce records, and birth & death certificates are handled by the following office(s):
COUNTY CLERK
535 NE 5th St, McMinnville, OR 97128
(503) 434-7518
Genealogy
County-level record sources
Yamhill County Circuit Court, McMinnville (probate/estate case files – see Probate section above).
Local societies
No dedicated Yamhill County genealogical society was confirmed in available directories.
Probate & Estate
Losing someone and having to deal with courts and paperwork at the same time is hard. This section won’t make that easier, but it should tell you what to expect, what it costs, and where to go – so at least you’re not walking in blind.
Where to go
Yamhill County Circuit Court 535 NE 5th Street, Room 135, McMinnville, OR 97128 (503) 434-7494
Yamhill County is in the northern Willamette Valley, seated in McMinnville – a hub of Oregon’s wine country.
Step 1: figure out which path applies
Oregon has NOT adopted the Uniform Probate Code, maintaining its own independent probate code under ORS Chapters 111 through 117. Probate is handled in the probate department of the Circuit Court in the county where the decedent lived (ORS 111.085). Oregon does not offer a separate unsupervised/informal probate track – its “simple estate” process and formal administration are the two paths.
Simple Estate Affidavit (ORS 114.505–114.560) – available when the total fair market value of the estate is $275,000 or less, made up of no more than $75,000 in personal property and no more than $200,000 in real property. The affidavit (“Affidavit of Claiming Successor”) cannot be filed until at least 30 days after death and must be filed with the clerk of the probate court. It requires a detailed asset description, a list of known creditors, and notice that claims are barred unless presented within 4 months of filing.
Full Probate Administration – required for estates that exceed the simple estate limits or don’t otherwise qualify. A personal representative is appointed by the court and administers the estate under ongoing court oversight.
Step 2: filing for administration
A petition for probate is filed in the Circuit Court in the county where the decedent resided (or, for simple estates, an Affidavit of Claiming Successor is filed with the probate clerk at least 30 days after death).
If a will exists, it’s filed with the petition or affidavit.
For full administration, the court appoints a personal representative and issues Letters Testamentary or Letters of Administration.
Notice is given to heirs, devisees, and creditors; claims against the estate must generally be presented within the statutory period.
The personal representative (or affiant, for simple estates) inventories assets, pays valid debts and taxes, and distributes what remains according to the will or Oregon’s intestacy laws.
Full administration closes once a final account is filed and approved by the court; simple estates close once assets are distributed and any required notices are filed.
What it costs
Filing fees vary; check with Yamhill County directly for current fees.
Oregon imposes a state estate tax on estates exceeding approximately $1,000,000, with rates ranging from 10% to 16%. No state inheritance tax.
Probate filings, estate administration, and guardianship matters are handled by the following office(s):
Public Safety & Arrests
Arrest records, inmate search, and law enforcement services are handled by the following office(s):
SHERIFF
535 NE 5th St, McMinnville, OR 97128
(503) 434-7506
Elections & Voting
Voter registration, polling locations, and elections information are handled by the following office(s):
ELECTIONS
535 NE 5th St, McMinnville, OR 97128
(503) 434-7518
Health & Human Services
Offices & Contacts
Health services, social services, and assistance programs are handled by the following office(s):
Public Health
435 NE Norton Ln, McMinnville, OR 97128
(503) 434-7525
Department of Human Services
435 NE Norton Ln, McMinnville, OR 97128
(503) 472-9701
Public Health Information
PUBLIC HEALTH
Office: Yamhill County Health & Human Services – animal bite/rabies reporting (503) 434-7525.
Editorial independence: CountyOffices maintains strict editorial independence from our affiliate partners. Our content is researched from official government sources. Affiliate relationships do not influence our recommendations or the information we publish.
Recommended for Oregon
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