Red Bank, NJ has a population of 12,218 and is the 3,367th largest city in the United States. The population density is 6,999 per sq mi which is 699811% higher than the New Jersey average and 7625% higher than the national average. The median age in Red Bank is 36 which is approximately 8% lower than the New Jersey average of 40. In Red Bank, 40% of the population over 15 years of age are married, 63% speak English and 33% speak Spanish. 50% of Red Bank residents were born in New Jersey, 21% were born out of state, 1% were born outside of the United States and 27% were foreign born.