Karnak is a city located in Pulaski County Illinois. With a 2020 population of 420, it is the 935th largest city in Illinois and the 14071st largest city in the United States . Karnak is currently declining at a rate of -1.64% annually and its population has decreased by -15.83% since the most recent census, which recorded a population of 499 in 2010. Karnak reached it's highest population of in . Spanning over 2 miles, Karnak has a population density of 233 people per square mile.
The average household income in Karnak is $60,026 with a poverty rate of 11.86%. The median rental costs in recent years comes to $533 per month, and the median house value is $51,800. The median age in Karnak is 48.9 years, 47.1 years for males, and 51.8 years for females.