THE O'BRIEN LAND BRIEF
Land in the
Rogue/Illinois/Scott Valleys setting.
O'Brien CDP has 5.22 square miles of land in Josephine County. Its Census reference point is in Rogue/Illinois/Scott Valleys, within Klamath Mountains/California High North Coast Range.
Dissected ridges, valleys and foothills combine varied rock types with diverse conifer and hardwood forests. The Klamath and Siskiyou ranges differ geologically from the volcanic Cascades to the east.
Regional context: Klamath Mountains/California High North Coast Range ↗ · Classification at the Census reference point
O'Brien and Josephine County
O'Brien is associated with Josephine County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
O'Brien by land and water
The Census records 0.01 square miles of water within O'Brien, or 0.3% of its total area. It is 0.1 percentage points higher than the 0.1% recorded for Josephine County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, O'Brien CDP has 87.9% of the land area of nearby Takilma CDP (5.94 square miles). These areas describe boundaries, not comparable property prices.

