Willow, AK has a population of 2,081 and is the 10,791st largest city in the United States. The population density is 3 per sq mi which is 175% higher than the Alaska average and 97% lower than the national average. The median age in Willow is 42 which is approximately 24% higher than the Alaska average of 34. In Willow, 56% of the population over 15 years of age are married, 93% speak English and 3% speak Spanish. 34% of Willow residents were born in Alaska, 64% were born out of state, 1% were born outside of the United States and 1% were foreign born.