Shauna Smith, Licensed Realtor - Customer focused, Southern Charm, Montana Style! About Shauna - My roots are in Texas, but a better quality of life and a love of the outdoors led me to relocate and redirect my career to serve the people of Helena, MT and the surrounding areas. Office Profile CENTURY 21 Heritage Realty is located in Helena, Montana, in the Heart of the Rocky Mountains. Helena is the capital city of Montana with a population of about 30,000 in the city limits; whereas, the total population of Lewis and Clark Co. is about 50,000. Helena enjoys four distinct seasons and has outdoor activities for all seasons. CENTURY 21 Heritage Realty is a full service real estate company with well-trained professionals to help you.