County profile

Partially sourced

Multnomah County

Official Oregon county-rule source anchors added for Multnomah County; office confirmation is still needed before verified status.

County-level researchedParcel review requiredRV cautionTiny-home review needed

Profile boundary

County Profiles Do Not Approve Parcels

This profile summarizes county-level signals. Before relying on a parcel, verify current rules with planning, zoning, building, environmental health, water, road, fire, title, and local professionals.

Read disclaimer

Verification queue

What Still Needs Confirmation

This profile has official source coverage for county-level discovery, but it still needs stronger current county-office confirmation before being promoted to verified. Treat it as a shortlist candidate, then confirm the exact parcel and intended use with local offices.

Office path

Current county contact

Confirm who handles planning, subdivision, rural addressing, floodplain, permitting, and enforcement for the parcel.

Parcel path

Exact intended use

Ask about the specific structure, RV or camper occupancy plan, water source, septic path, access road, and development sequence.

At a glance

Fast Read

County-level discovery summary for alternative housing research. Use this as a shortlist signal, then verify the specific parcel and code path.

Verify first
Overall

Restrictive discovery fit

Multnomah County has a Freedom Score of 33. Its strongest profile signals are ADUs (4/5) and Container homes (3/5).

Best use case

Oregon county-rule due diligence

Best initial fit: Oregon county-rule due diligence, Portland-edge rural land screening. Check county planning materials before making parcel assumptions.

Land signal

40/100 affordability score

Land pricing still needs review, but the county has a 2/5 land availability signal.

Caution

RV living needs extra review

Verify jurisdiction, zoning district, urban growth boundary, sanitation, utilities, water rights, legal access, floodplain, covenants, and protected resource areas

Trust strip

Source Snapshot

Fast source context for this county profile. Use the full source trail below for links, citations, and parcel-level verification reminders.

Data status
Land snapshotsourced
Jun 5, 2026

LandSearch

Broadbandsourced
2024

Census Reporter ACS 2024 5-year table B28002

Public landsourced
2026

BLM Oregon/Washington Ownership GIS layer

Solar periodsourced
2001-2020

NASA POWER 2001-2020 solar irradiance climatology

County citationssourced
14

Planning, zoning, building, and profile links

Best Fit

Oregon county-rule due diligencePortland-edge rural land screening

Pros

  • Official county Land Use Planning and permit portal pages provide local anchors.
  • Oregon statewide land-use, building-department, and onsite wastewater references are included

Cons

  • This is a source-anchor pass, not a legal interpretation
  • urban jurisdiction, service districts, floodplain, wildfire, and city rules may dominate parcel feasibility

Alternative Housing Ratings

derived

Verified county-level discovery scores

Tiny Homes
2/5
RV Living
1/5
Off Grid
1/5
Container Homes
3/5
ADUs
4/5

Alternative Housing Notes

Tiny Homes

Multnomah County now has official county Land Use Planning and permit-portal anchors. Tiny home feasibility should be checked through dwelling classification, zoning district, building-code path, sanitation, access, urban growth boundary constraints, and private covenants before purchase.

RV Living

Long-term RV or camper occupancy in Multnomah County should be confirmed directly with county or city planning staff, including temporary-use limits, sanitation, water, utility service, driveway access, and whether the parcel is inside a city jurisdiction.

Off Grid

Off-grid projects in Multnomah County should verify land-use approval, building permits, onsite wastewater rules where applicable, water feasibility, legal access, road maintenance, wildfire, floodplain, slope, and emergency-response constraints.

Container Homes

Container-home projects in Multnomah County should be treated as engineered dwellings or structures unless county staff confirms another path.

ADUs

ADU feasibility in Multnomah County depends on zoning, city jurisdiction, primary-dwelling status, utilities, septic or sewer capacity, and private restrictions.

Land Affordability

sourced

Sourced market snapshot

Price/Acre Estimate
Research needed
Active Land Listings
1
Availability Score
2/5
Affordability Score
40/100

Source: LandSearch snapshot from June 5, 2026. LandSearch Oregon county price table active listing count; no average price per acre shown in the source table.

How to read source layers

Population Context

sourced

Sourced Census estimate

Population
795,897
Population Density
1,845.4 / sq mi

Population uses 2024 U.S. Census county estimates. Density is computed from county land area in the imported GeoJSON boundary data.

Water and Septic

draft

Parcel-level verification needed

Water

Water availability in Multnomah County is parcel-specific and often jurisdiction-specific; check utility, well, and service-district requirements before purchase.

Septic

Septic feasibility in Multnomah County requires parcel-level review under Oregon DEQ rules or local administration where onsite wastewater is allowed.

Climate, Utilities, and Access

derived

Mixed sourced and derived layers

Snowfall
4.7"
Precipitation
58.7"
Growing Season
324 days
Broadband
9/10
Solar
2/10
Public Land
103,709
Recreation Access
4/5
Federal Public Land
80,806
State Public Land
6,806
Local Public Land
16,097

Public land source: BLM Oregon/Washington Ownership GIS layer snapshot from 2026. County-clipped GIS estimate using Oregon/Washington Ownership status categories. Includes federal, state, and local public-surface codes; excludes private, tribal, unknown, and water categories. Sample matched labels: BLM; Board of Higher Education; Bonneville Power Admin; Bridal Veil Falls SSV; Bull Run; Bull Run Lake; Bull Run Watershed MU; City of Portland Water Bureau; Clackamas County; Columbia River Gorge N S A; Crown Point State Park; Dabney State Park; Dalton Point; Dept of Veterans Affairs; FWS; George W. Joseph SNA; Gresham City of; Guy W. Talbot State Park; Happy Valley City of; Interstate 84; John B Yeon State Park; Lake Oswego City of; Larch Mtn Env Ed Site; Lewis and Clark State Park; MT HOOD NF; McLoughlin State Park; Metro; Metro (Jones Cemetery); Metropolitan Serv District; Milwaukie City of; Mt Hood NF; Multnomah County; NORTHWEST OREGON DISTRICT; North Clackamas Parks & Rec; North Clackamas School Dist; OHSU; Oregon Dept of Transportation; Oregon National Guard; Oregon State (Div State Lands); Oregon State Dept of Trans; Oregon State Fish & Wildlife; Oregon State Hwy Comm; Oregon State Parks and Rec; Oxbow County Park; Portland City of; Private-Undefined; Reynolds School District; Rooster Rock State Park; Shepperds Dell State Park; State Park; State of Oregon; Tri-County Met Trans Dist; Troutdale City of; US Courthouse; USA; USFS.

Broadband Subscription
93.6%
Cable/Fiber/DSL
82.9%
Satellite
3.6%
No Internet
3.9%

Broadband source: Census Reporter ACS 2024 5-year table B28002 snapshot from 2024. Broadband score is a county-level ACS household broadband subscription proxy, not parcel-level service availability. Score is based on the percentage of households with broadband of any type.

Annual Solar Resource
3.67 kWh/m²/day
Winter Solar
1.42 kWh/m²/day
Summer Solar
6.21 kWh/m²/day

Solar source: NASA POWER 2001-2020 solar irradiance climatology for 2001-2020. County-centroid solar proxy using NASA POWER ALLSKY_SFC_SW_DWN annual all-sky surface shortwave downward irradiance. This is a county-level solar resource estimate, not a parcel-level PV design study.

Source glossary and data layer notes

Red Flags

  • Verify jurisdiction, zoning district, urban growth boundary, sanitation, utilities, water rights, legal access, floodplain, covenants, and protected resource areas

Source Trail

County office links, sourced data layers, and profile citations used to build this county-level research summary.

Source glossary

County Profile Citations

Research Status

draft

County-level profile reviewed; parcel-level confirmation still required

This profile is currently marked partially sourced. It is ready for county comparison and early research, but legal claims and parcel-specific decisions should still be verified against county code, planning offices, and local experts.

County FAQ

Frequently Asked Questions

Is Multnomah County a good county for alternative living?

Multnomah County has a Freedom Score of 33, which makes it useful for county-level discovery. Treat that score as a shortlist signal, then verify zoning, building, water, septic, access, and covenant rules for the specific parcel.

Can you live in a tiny home in Multnomah County?

Multnomah County has a tiny home score of 2/5. That score does not approve a tiny home by itself; it means the county is worth researching through planning, zoning, building code, sanitation, and parcel-specific rules.

Can you live in an RV on land in Multnomah County?

Multnomah County has an RV living score of 1/5. RV rules often depend on duration, construction status, sanitation, water, zoning district, and whether the land is inside a subdivision or municipality.

Is Multnomah County good for off-grid living?

Multnomah County has an off-grid score of 1/5. Off-grid feasibility still depends on legal access, septic or OWTS approval, water options, fire risk, winter access, and whether a lawful dwelling can be permitted.

How affordable is land in Multnomah County?

Multnomah County has a land affordability score of 40/100 based on the current county-level dataset. Use this for comparison only, because actual parcel prices can vary by road access, utilities, terrain, water, covenants, and listing quality.

Who is Multnomah County best suited for?

Based on the current profile, Multnomah County is best suited for Oregon county-rule due diligence, Portland-edge rural land screening. The best fit can change once you narrow from county-level research to a specific property.

What should I verify before buying land in Multnomah County?

Before buying, confirm zoning, building permits, legal access, road maintenance, water rights or well eligibility, septic feasibility, wildfire requirements, floodplain issues, mineral rights, and any HOA, POA, subdivision, or covenant restrictions.

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