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Oregon · Willamette Valley · #200 Most Populous County in the US
Marion County, Oregon
Oregon's capital county and Willamette Valley heartland - from Salem's statehouse and the Willamette River to Silverton's gardens, the hops fields and nurseries of the valley floor, and the Cascade foothills to the east. Property tax, courts, public records, and senior services for Marion County residents.
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Marion 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: Marion County Emergency Management – 5155 Silverton Road NE, Salem, OR 97305 | (503) 391-7294 | [email protected]; Director of Emergency Management Greg Walsh, (503) 365-3133; sign up for Marion Polk Alerts. Wildfire evacuation uses a 3-level system (Get Ready/Get Set/Go).
Sheriff non-emergency: (503) 588-5032.
Notes: For an active emergency, call 911.
Roads & Utilities
ROADS & TRANSPORTATION
Roads: I-5 and OR-99E serve Salem, the county seat and Oregon’s state capital, in the Willamette Valley.
Transit: Cherriots (Salem-Keizer Transit).
Notes: Marion County spans nearly 1,200 square miles from the Willamette River to the Cascade Mountains, with 20 cities and 37 unincorporated communities; it is Oregon’s largest agricultural producer by county.
Business & Permits
BUILDING & PERMITS
Office: Marion County Public Works / Community Development – confirm current phone via co.marion.or.us.
Notes: Salem is genuinely Oregon’s state capital, home to the Oregon State Capitol, and to Willamette University – the oldest university in the western United States (chartered 1842). The county also hosts Chemeketa Community College and Corban University, and is home to 38 of Oregon’s largest state agencies. Salem’s downtown includes the historic Reed Opera House and Elsinore Theatre.
Veterans Services
VETERANS SERVICES
Office: Marion County Veteran Service Office – 780 Commercial St. SE, Suite 302, Salem, OR 97302 | (971) 707-4400 | Fax: (503) 386-2173 | [email protected] | Hours: Mon-Wed 9-11 AM & 1-4 PM (walk-in, first-come first-served; front desk only Thu-Fri); closed daily 12-1 PM and the last day of each month; served by Cherriots bus routes #21 and #22; a partnership among Mid-Willamette Valley Community Action Agency, Oregon Department of Veterans’ Affairs, and Marion County since June 2018 – claims for Marion County veterans are handled directly by the county, not by ODVA’s standard state process.
Federal: Portland VA Regional Office – (800) 692-9666.
Libraries
LIBRARIES
Salem: Salem Public Library – 585 Liberty St. SE, Salem, OR 97301 | (503) 588-6315 | [email protected].
Parks & Recreation
PARKS & RECREATION
Key Assets: Willamette University’s historic campus, the Oregon State Capitol grounds, and Bush’s Pasture Park are the county’s signature attractions.
Notes: The genuine “state capital” heritage and Willamette University’s status as the oldest university in the West are distinctive local facts.
GIS & Maps
GIS & MAPS
Appraisal/Parcel Search: Marion County Assessor – confirm current phone via co.marion.or.us.
Animal Services
ANIMAL SERVICES
County: Marion County Dog Services (MCDS) – 3550 Aumsville Hwy SE, Salem, OR 97317 | (503) 566-6914; enforces dog licensing/control ordinances; appointments required for surrenders, adoptions by appointment only.
Nonprofit: Willamette Humane Society – merged with the Oregon Humane Society in July 2022; Oregon Humane Society Salem campus, 4246 Turner Rd SE, Salem, OR 97317 | (503) 585-5900 | Hours: daily 10 AM-7 PM.
Environmental & Waste
ENVIRONMENTAL / WASTE MANAGEMENT
Office: Marion County Public Works – confirm current contact via co.marion.or.us.
NOTES: Marion County is the third county in the Oregon v2 redo’s fourth batch (Linn, Malheur, Marion, Morrow, Multnomah, Polk, Sherman). As Oregon’s state capital county, home to Willamette University (oldest university in the West) and 38 state agencies, this is one of the most administratively significant counties in the state. 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 Marion County
Marion County is Oregon’s third most populous county and the 200th most populous in the United States, covering 1,194 square miles of the central Willamette Valley anchored by Salem, Oregon’s capital city.
Salem (population ~175,000, the county seat and state capital) is Oregon’s second largest city and its governmental center. The Oregon State Capitol – a 1938 Art Deco building topped with a gold pioneer figure – anchors the Capitol Mall district along the Willamette River. State government is Salem’s dominant economic driver, complemented by healthcare, higher education (Willamette University, founded 1842 – the oldest university on the West Coast), and food processing tied to the valley’s agricultural economy.
Keizer (population ~38,000) is a separate city incorporated in 1982 from unincorporated Marion County north of Salem – a predominantly residential community with significant retail development along Chemawa Road and River Road North.
Silverton (population ~10,000) is one of the Willamette Valley’s most charming small cities – home to the Oregon Garden (a world-class botanical garden with over 80 specialty gardens) and Silver Falls State Park (Oregon’s largest state park, featuring 10 major waterfalls including the dramatic Trail of Ten Falls loop and the iconic South Falls – a 177-foot waterfall you can walk behind).
Woodburn (population ~25,000) anchors the county’s agricultural southern tier – a majority-Hispanic city serving the agricultural workforce of the berry fields, nurseries, and greenhouses that make the Willamette Valley one of the most productive nursery-growing regions in the world.
Marion County’s agricultural output is extraordinary for its size – the county is the leading U.S. producer of hops (essential to Oregon’s craft beer industry), hazelnuts, and several berry varieties, and a significant source of nursery stock for the national landscaping industry.
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 Real Market Value (RMV) – what the property would sell for – is tracked separately and must be at or above MAV. When RMV falls below MAV (in declining markets), assessed value must be reduced. For longtime owners in a rising market, MAV is typically far below RMV.
The appeal process: File with the Marion County Board of Property Tax Appeals (BOPTA) at the Marion County Assessor’s Office, 555 Court Street NE, Salem, OR 97301, phone 503-588-5144. The filing window is October 1 through December 31 of the tax year. BOPTA hearings occur January–April.
Oregon estate tax: Oregon imposes an estate tax on estates above $1 million – one of the lowest thresholds in the country. Rates range from 10% to 16%. No OR inheritance tax. Oregon’s low threshold means that Salem homeowners with appreciated real estate plus retirement accounts may have estate tax exposure.
OWNWELL CTA: Marion County BOPTA: October 1–December 31. Measure 50 cap creates MAV/RMV gap – appeal focuses on RMV being overstated. OR estate tax above $1M at 10%–16% – among lowest thresholds nationally. Ownwell manages the appeal with no upfront cost.
Recommended
Marion County BOPTA: October 1–December 31. Measure 50 cap creates MAV/RMV gap - appeal focuses on RMV being overstated. OR estate tax above $1M at 10%–16% - among lowest thresholds nationally. Ownwell manages the appeal with no upfront cost.
Courts & Legal
Courts & Legal
Circuit Court (Probate): The Marion County Circuit Court at 100 High Street NE, Salem, OR 97301, phone 503-588-5105, handles probate, estate administration, guardianships, and all civil and criminal matters.
County Clerk: The Marion County Clerk at 555 Court Street NE maintains real property records and election rolls. Land records searchable online.
Senior Services
The Marion County Health and Human Services, Aging Services at 3180 Center Street NE, Salem, OR 97301, phone 503-584-7966, coordinates in-home services, caregiver support, nutrition programs, and transportation. Salem Health and Kaiser Permanente provide significant geriatric care.
Recommended
Assisted living, memory care, and independent living across Marion County - from Salem and Keizer to Silverton, Woodburn, and the Willamette Valley communities.
Marriage & Vital Records
Marriage licenses, divorce records, and birth & death certificates are handled by the following office(s):
COUNTY CLERK
555 Court St NE, Salem, OR 97301
(503) 588-5225
Genealogy
County-level record sources
Marion County Circuit Court, Salem (probate/estate case files – see Probate section above).
Local societies
No dedicated Marion 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
Marion County Circuit Court 100 High Street NE, Salem, OR 97301 (503) 588-5105
Marion County is in the northern Willamette Valley, seated in Salem – Oregon’s state capital and its 3rd most populous county.
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 Marion 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
100 High St NE, Salem, OR 97301
(503) 588-5094
Elections & Voting
Voter registration, polling locations, and elections information are handled by the following office(s):
ELECTIONS
555 Court St NE, Salem, OR 97301
(503) 588-5041
Health & Human Services
Offices & Contacts
Health services, social services, and assistance programs are handled by the following office(s):
Health Department
3180 Center St NE, Salem, OR 97301
(503) 588-5357
Department of Human Services
4881 Center St NE, Salem, OR 97317
(503) 373-4100
Public Health Information
PUBLIC HEALTH
Office: Marion County Health & Human Services – 3160 Center Street NE, Salem, OR 97301 | (503) 588-5357.
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Recommended for Oregon
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