Jackson, WY has a population of 10,279 and is the 3,869th largest city in the United States. The population density is 3,503 per sq mi which is 58284% higher than the Wyoming average and 3766% higher than the national average. The median age in Jackson is 33 which is approximately 11% lower than the Wyoming average of 37. In Jackson, 38% of the population over 15 years of age are married, 72% speak English and 26% speak Spanish. 25% of Jackson residents were born in Wyoming, 57% were born out of state, 1% were born outside of the United States and 16% were foreign born.