what county is helena montana in
Helena /ËhÉlÉ¨nÉ/ is the capital city of the U.S. State of Montana and the county seat of Lewis and Clark County. The 2010 census put the population at 28,190 and the Lewis and Clark County population at 63,395. Helena is the principal city of the Helena Micropolitan Statistical Area, which includes all of Lewis and Clark and Jefferson counties; its population is 77,414 according to the 2014 Census Estimate.