Nikiski is a city located in Kenai Peninsula County Alaska. Nikiski has a 2020 population of 4,316. Nikiski is currently declining at a rate of 0.00% annually and its population has decreased by -3.94% since the most recent census, which recorded a population of 4,493 in 2010. Nikiski reached it's highest population of in .
The average household income in Nikiski is $74,765 with a poverty rate of 14.99%. The median rental costs in recent years comes to $1,131 per month, and the median house value is $214,900. The median age in Nikiski is 44.9 years, 42.5 years for males, and 48.5 years for females.