Buying Land in Tillamook County, Oregon

A county built almost entirely on resource land

Tillamook County's own Comprehensive Plan is explicit that the county is composed almost entirely of resource land -- agricultural land in the valley, commercial forest land in the surrounding hills, and estuaries and coastal shorelands along its stretch of the Pacific. That framing matters for a land buyer because it means the county's Land Use Ordinance treats nearly every rural parcel as falling into one resource category or another, each with its own permitted-use table, rather than leaving large areas as general, unrestricted rural land. Before assuming a use -- a second dwelling, a hobby farm structure, a short-term rental -- is allowed, confirm the parcel's specific zoning designation directly with the county's Department of Community Development.

Dairy farming and the Tillamook Creamery shape the valley's EFU rules

The city of Tillamook sits surrounded by some of Oregon's most productive dairy land, home to the farmer-owned Tillamook County Creamery Association and its well-known cheese and dairy brand. That agricultural identity is written directly into the county's EFU zoning: the county's own dwellings-in-the-EFU-zone guidance confirms that new dwellings tied to an active dairy operation are an allowed farm use, giving working dairy operators a real, favorable path to a home site that a non-farm buyer on the same EFU land generally does not have.

For a buyer evaluating EFU land in the Tillamook Valley, the practical question isn't just whether land is zoned EFU -- it's whether the specific parcel supports (or could support) a qualifying farm use like dairy, hay, or another commercial agricultural operation, since that farm-use status is what typically unlocks dwelling rights. Confirm that status, and any existing dwelling history on the parcel, with county planning staff before assuming a house can be built.

Flooding is a real, recurring feature of the Tillamook Valley

Tillamook County's low-lying valley has a documented, recurring flood history: repeated floods in 1950, 1953, and 1955 led directly to the formation of the Tillamook County Flood Control District, and a major flood in February 1996 caused extensive damage to homes and farmland, with total flood losses across the county reported to exceed $60 million between 1996 and 2000. The Tillamook Bay Flood Improvement District continues active seasonal levee and floodplain-management work, coordinating with organizations like The Nature Conservancy and the Tillamook County Creamery Association in basins like the Kilchis River watershed. Above roughly 15.5 feet on the Wilson River gauge, widespread flooding has historically affected the north part of the city of Tillamook along Highway 101, especially during high tides.

Any parcel in the valley bottomlands should be checked against current FEMA flood-zone mapping and the county's own flood-information resources before you buy, and a buyer should ask directly whether a specific tract has a documented flood history rather than relying on general reputation about "the coast" being flood-safe or flood-prone.

Coastal shoreline parcels carry their own hazard-mapping regime

For land along the ocean shore itself, Tillamook County's coastal-zone provisions layer on top of the general resource-land framework, and updated LiDAR-based mapping from DOGAMI now provides more precise spatial data on which beach and dune areas are subject to storm-induced wave erosion, wave runup, overtopping, and coastal flooding. That mapping is directly relevant to siting and setback decisions for any new construction near the shoreline, and it's a genuinely different hazard analysis from the inland river-flood picture described above -- a coastal-adjacent buyer should ask the county specifically about dune-hazard and ocean-shore setback requirements for the parcel in question.