THE PHILADELPHIA LAND BRIEF
Land in the
River Hills setting.
Philadelphia CDP has 0.76 square miles of land in Marion County. Its Census reference point is in River Hills, within Interior River Valleys and Hills.
Broad terraced river valleys contrast with wooded slopes and dissected glacial plains. Bottomland settings and upland oak landscapes occur close together across the Interior River Valleys and Hills.
Regional context: Interior River Valleys and Hills ↗ · Classification at the Census reference point
Philadelphia and Marion County
Philadelphia is associated with Marion 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.
Philadelphia by land and water
The Census records 0 square miles of water within Philadelphia, or 0% of its total area. It is 1.7 percentage points lower than the 1.7% recorded for Marion County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Philadelphia CDP has 24.6% of the land area of nearby Palmyra city (3.08 square miles). These areas describe boundaries, not comparable property prices.

