North River Shores, FL has a population of 4,084 and is the 7,355th largest city in the United States. The population density is 3,175 per sq mi which is 981% higher than the Florida average and 3404% higher than the national average. The median age in North River Shores is 42 which is approximately equal to the Florida average of 42. In North River Shores, 49% of the population over 15 years of age are married, 88% speak English and 7% speak Spanish. 41% of North River Shores residents were born in Florida, 49% were born out of state, 2% were born outside of the United States and 8% were foreign born.