Fulton, MO has a population of 12,886 and is the 3,228th largest city in the United States. The population density is 1,046 per sq mi which is 1110% higher than the Missouri average and 1054% higher than the national average. The median age in Fulton is 33 which is approximately 14% lower than the Missouri average of 38. In Fulton, 39% of the population over 15 years of age are married, 98% speak English and 0% speak Spanish. 68% of Fulton residents were born in Missouri, 30% were born out of state, 0% were born outside of the United States and 2% were foreign born.