Harvey Cedars, NJ has a population of 430 and is the 20,475th largest city in the United States. The population density is 765 per sq mi which is 76380% higher than the New Jersey average and 744% higher than the national average. The median age in Harvey Cedars is 65 which is approximately 64% higher than the New Jersey average of 40. In Harvey Cedars, 82% of the population over 15 years of age are married, 95% speak English and 0% speak Spanish. 51% of Harvey Cedars residents were born in New Jersey, 44% were born out of state, 1% were born outside of the United States and 4% were foreign born.