Mountain View, HI has a population of 3,684 and is the 7,814th largest city in the United States. The population density is 66 per sq mi which is 48% lower than the Hawaii average and 27% lower than the national average. The median age in Mountain View is 40 which is approximately 5% higher than the Hawaii average of 39. In Mountain View, 52% of the population over 15 years of age are married, 97% speak English and 1% speak Spanish. 73% of Mountain View residents were born in Hawaii, 18% were born out of state, 1% were born outside of the United States and 8% were foreign born.