Eatontown, NJ has a population of 12,233 and is the 3,365th largest city in the United States. The population density is 2,094 per sq mi which is 209345% higher than the New Jersey average and 2212% higher than the national average. The median age in Eatontown is 41 which is approximately 3% higher than the New Jersey average of 40. In Eatontown, 52% of the population over 15 years of age are married, 72% speak English and 13% speak Spanish. 55% of Eatontown residents were born in New Jersey, 21% were born out of state, 2% were born outside of the United States and 22% were foreign born.