Helena West Side, MT has a population of 1,242 and is the 13,828th largest city in the United States. The population density is 86 per sq mi which is 1165% higher than the Montana average and 5% lower than the national average. The median age in Helena West Side is 52 which is approximately 30% higher than the Montana average of 40. In Helena West Side, 60% of the population over 15 years of age are married, 97% speak English and 3% speak Spanish. 46% of Helena West Side residents were born in Montana, 51% were born out of state, 1% were born outside of the United States and 2% were foreign born.