Oneida, NY has a population of 11,186 and is the 3,618th largest city in the United States. The population density is 507 per sq mi which is 41% higher than the New York average and 460% higher than the national average. The median age in Oneida is 41 which is approximately 8% higher than the New York average of 38. In Oneida, 54% of the population over 15 years of age are married, 95% speak English and 2% speak Spanish. 82% of Oneida residents were born in New York, 13% were born out of state, 1% were born outside of the United States and 4% were foreign born.