Ashton, ID has a population of 1,041 and is the 14,896th largest city in the United States. The population density is 1,632 per sq mi which is 8456% higher than the Idaho average and 1702% higher than the national average. The median age in Ashton is 37 which is approximately 4% higher than the Idaho average of 36. In Ashton, 70% of the population over 15 years of age are married, 83% speak English and 17% speak Spanish. 62% of Ashton residents were born in Idaho, 31% were born out of state, 1% were born outside of the United States and 7% were foreign born.