Beachwood, NJ has a population of 11,153 and is the 3,627th largest city in the United States. The population density is 4,036 per sq mi which is 403546% higher than the New Jersey average and 4355% higher than the national average. The median age in Beachwood is 36 which is approximately 10% lower than the New Jersey average of 40. In Beachwood, 56% of the population over 15 years of age are married, 92% speak English and 3% speak Spanish. 79% of Beachwood residents were born in New Jersey, 17% were born out of state, 1% were born outside of the United States and 4% were foreign born.