Burley, ID has a population of 10,382 and is the 3,842nd largest city in the United States. The population density is 1,698 per sq mi which is 8800% higher than the Idaho average and 1774% higher than the national average. The median age in Burley is 29 which is approximately 20% lower than the Idaho average of 36. In Burley, 60% of the population over 15 years of age are married, 71% speak English and 27% speak Spanish. 57% of Burley residents were born in Idaho, 30% were born out of state, 0% were born outside of the United States and 12% were foreign born.