59601 Zip Code (Helena, Montana) Profile homes, apartments, schools, population,
59601 Zip Code (Helena, Montana) Profile homes, apartments, schools, population, . Portions of 59601 are also located in jefferson. Zip code 59601 is located in the state of montana in the helena metro area. 59601 Zip Code (Helena, Montana) Profile homes, apartments, schools, population, from www.city-data.com 7,254 zip code population in 2010: This is a list of all 8 zip codes in helena, mt. Montana is the 4th largest state by.