Unalaska is a city located in Alaska. With a 2020 population of 4,531, it is the 14th largest city in Alaska and the 5036th largest city in the United States. Unalaska is currently growing at a rate of 0.38% annually and its population has increased by 3.54% since the most recent census, which recorded a population of 4,376 in 2010. Unalaska reached it's highest population of 4,570 in 2014. Spanning over 211 miles, Unalaska has a population density of 44 people per square mile.
The average household income in Unalaska is $108,280 with a poverty rate of 7.21%. The median rental costs in recent years comes to $1,403 per month, and the median house value is $342,600. The median age in Unalaska is 37.8 years, 39.6 years for males, and 35.2 years for females. For every 100 females there are 141.5 males.