The Martin City area is a census-designated place in Flathead County. The Martin City area is a relatively small place with a total area of .5 square miles of land at an elevation of 3,205 feet above sea level. The total population of the Martin City area is three hundred and thirty-one people and the population density of the area is six hundred and ninety-seven people per square mile. There are one hundred and forty-two family households located within the area of Martin City and ninety-four families residing there. The median family income for the residents of the Martin City area is roughly $31,500 per year. The town of Martha has a post office with a zip code of the area as 59926 and the area code of the area is 406. The Martin City area offers a safe and comfortable environment for residents and visitors alike to enjoy.