Essex Junction, VT has a population of 9,922 and is the 3,954th largest city in the United States. The population density is 2,173 per sq mi which is 3240% higher than the Vermont average and 2299% higher than the national average. The median age in Essex Junction is 38 which is approximately 11% lower than the Vermont average of 43. In Essex Junction, 54% of the population over 15 years of age are married, 89% speak English and 1% speak Spanish. 49% of Essex Junction residents were born in Vermont, 41% were born out of state, 1% were born outside of the United States and 9% were foreign born.