Gautier, MS has a population of 18,541 and is the 2,354th largest city in the United States. The population density is 613 per sq mi which is 894% higher than the Mississippi average and 576% higher than the national average. The median age in Gautier is 37 which is approximately 1% higher than the Mississippi average of 37. In Gautier, 54% of the population over 15 years of age are married, 94% speak English and 4% speak Spanish. 57% of Gautier residents were born in Mississippi, 37% were born out of state, 2% were born outside of the United States and 4% were foreign born.