Poquoson, VA has a population of 12,068 and is the 3,405th largest city in the United States. The population density is 785 per sq mi which is 310% higher than the Virginia average and 766% higher than the national average. The median age in Poquoson is 43 which is approximately 15% higher than the Virginia average of 38. In Poquoson, 65% of the population over 15 years of age are married, 96% speak English and 2% speak Spanish. 58% of Poquoson residents were born in Virginia, 37% were born out of state, 2% were born outside of the United States and 3% were foreign born.