Lusk, WY has a population of 1,796 and is the 11,658th largest city in the United States. The population density is 868 per sq mi which is 14644% higher than the Wyoming average and 858% higher than the national average. The median age in Lusk is 33 which is approximately 9% lower than the Wyoming average of 37. In Lusk, 56% of the population over 15 years of age are married, 96% speak English and 4% speak Spanish. 42% of Lusk residents were born in Wyoming, 57% were born out of state, 0% were born outside of the United States and 0% were foreign born.