Plandome, NY has a population of 1,228 and is the 13,894th largest city in the United States. The population density is 2,482 per sq mi which is 592% higher than the New York average and 2640% higher than the national average. The median age in Plandome is 45 which is approximately 18% higher than the New York average of 38. In Plandome, 70% of the population over 15 years of age are married, 88% speak English and 3% speak Spanish. 82% of Plandome residents were born in New York, 10% were born out of state, 1% were born outside of the United States and 8% were foreign born.