Grant-Valkaria, FL has a population of 3,996 and is the 7,456th largest city in the United States. The population density is 147 per sq mi which is 50% lower than the Florida average and 62% higher than the national average. The median age in Grant-Valkaria is 51 which is approximately 21% higher than the Florida average of 42. In Grant-Valkaria, 71% of the population over 15 years of age are married, 96% speak English and 1% speak Spanish. 37% of Grant-Valkaria residents were born in Florida, 57% were born out of state, 1% were born outside of the United States and 5% were foreign born.