Most Expensive Suburb in Montana Is Straight Up a Lie Best Life came out with a ranking of the Most Expensive Suburb in Every State and what they picked for Montana had me laughing and shaking my head in disbelieve because not only were they wrong, they were way off. According to Best Life, the most expensive suburb in Montana is Red Lodge(a suburb of Billings, even though they are 60 miles away from Billings) and their median home price is just over $291,000. That's adorable. The official definition of a suburb is, "an outlying district of a city, especially a residential one." It's obvious Best Life doesn't know where to really look for a suburb because you could choose several places around Bozeman as a suburb and they would crush Red Lodge's median home price.