County government
Multnomah County
Start with Multnomah County for property assessment, elections, county records, emergency management, and many services for an unincorporated address. If the address is inside a city or town, that local government may handle permits, land use, and city services.
- Population
- 795,391
- Local place pages
- 12
- Census GEOID
- 41051
Population: 2025 Census estimate. Use the exact address, not the mailing name alone, to confirm whether a city, county, state office, court, utility, or district handles the task.
Local front desk
Start with the task, then confirm the boundary.
Start with Multnomah County for property assessment, elections and county records, emergency management, and many services for an unincorporated address.
Do not rely on the mailing city alone. Use the exact address, parcel, notice, case, or account to confirm the city, county, court, utility, fire, school, or other district that handles the task.
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Local work
Permits, zoning, code, and municipal services
For an unincorporated address, start with Multnomah County. An address inside a city or town may start with that local government instead.
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Property
Assessment, exemptions, tax accounts, and bills
Use the parcel or tax account to choose the county assessor. The city in a mailing address may not be the county that holds the account.
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Records
Elections, county records, and circuit courts
Multnomah County handles elections and many county records. For court work, use the case, filing, or notice to find the correct Oregon Judicial Department service.
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Vehicles
Driver licenses, titles, registration, and DMV visits
DMV is a state service. Use the official office directory to confirm services, appointments, and current hours before traveling.
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Land and water
Septic systems, wells, and water rights
For septic work, use the county or regional agent listed by DEQ. For water rights, use the Water Resources Department and its watermaster districts. A mailing name does not choose either office.
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Household help
Food, medical, cash, and child-care benefits
Start with Benefits Oregon to apply for statewide help. The specific program, eligibility rules, and case notice control the final answer.
Communities
Places connected to Multnomah County
This list includes every Census city, town, or census-designated place intersecting the county. A multi-county place appears in each of its county branches.
Published county context
Stories & Notes connected inside Multnomah County
These notes have a recorded relationship to the county or to a place intersecting it. That connection does not by itself make the county the controlling authority for the subject.
In Multnomah County, court, vital, and land records use different doors
Multnomah County routes court files to Oregon's Judicial Department, land documents to County Recording, and recent birth or death certificates to county Vital Records.
Measure 50 keeps market and assessed values on different tracks
Why market value and assessed value can move on different tracks, and where Measure 5 fits.
For Clackamas County permits, the address and work type choose the office
Unincorporated properties use the county for all building-permit types, while responsibility inside cities can still vary by permit type.
Portland short-term rentals have separate tax and property checks
State lodging tax, local tax registration, and permission to use the address are separate questions.
In Multnomah County, business registration is not the last license check
Oregon business registration and licensing are separate questions, and a business location may add city license, zoning, or permit checks.
Portland is one city in three counties
Portland reaches into Multnomah, Washington, and Clackamas counties, so an address check can change the records office or local jurisdiction a resident needs.
Keep going
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