THE HELENA VALLEY SOUTHEAST LAND BRIEF
Land in the
Townsend Basin setting.
Helena Valley Southeast CDP has 21.5 square miles of land in Lewis and Clark County. Its Census reference point is in Townsend Basin, within Middle Rockies.
Forested mountain ranges rise above grassy or shrubby intermountain valleys. The Middle Rockies combine alpine high country, partly wooded foothills and valleys supplied by mountain streams.
Regional context: Middle Rockies ↗ · Classification at the Census reference point
Helena Valley Southeast and Lewis and Clark County
Helena Valley Southeast is associated with Lewis and Clark 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.
Helena Valley Southeast by land and water
The Census records 0.94 square miles of water within Helena Valley Southeast, or 4.2% of its total area. It is 3.1 percentage points higher than the 1.1% recorded for Lewis and Clark County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Helena Valley Southeast CDP has 5.3 times the land area of nearby East Helena city (4.05 square miles). These areas describe boundaries, not comparable property prices.

