SIZE
3,498 mi²
FOUNDED
1865
COUNTY SEAT
HELENA
POPULATION
69,432
LARGEST CITY
HELENA
COUNTY NUMBER
05
County Fun Fact
Referencing the impressive limestone cliffs along the Missouri River in July 1805, Meriwether Lewis wrote in his journal, “I shall call this place: Gates of the Mountains.” Lewis and Clark also camped below the Sleeping Giant landmark.
SENATORS
LAWMAKERS FOR THIS COUNTY
REPRESENTATIVES
LAWMAKERS FOR THIS COUNTY