Glendive, MT has a population of 5,353 and is the 6,173rd largest city in the United States. The population density is 1,541 per sq mi which is 21914% higher than the Montana average and 1601% higher than the national average. The median age in Glendive is 36 which is approximately 10% lower than the Montana average of 40. In Glendive, 62% of the population over 15 years of age are married, 98% speak English and 0% speak Spanish. 61% of Glendive residents were born in Montana, 38% were born out of state, 0% were born outside of the United States and 1% were foreign born.