Kittanning is a city located in Armstrong County Pennsylvania. It is also the county seat of Armstrong County. With a 2020 population of 3,652, it is the 268th largest city in Pennsylvania and the 5665th largest city in the United States . Kittanning is currently declining at a rate of -0.95% annually and its population has decreased by -9.69% since the most recent census, which recorded a population of 4,044 in 2010. Kittanning reached it's highest population of in . Spanning over 1 miles, Kittanning has a population density of 3,665 people per square mile.
The average household income in Kittanning is $49,704 with a poverty rate of 23.61%. The median rental costs in recent years comes to $611 per month, and the median house value is $73,800. The median age in Kittanning is 49.4 years, 46.9 years for males, and 50.5 years for females.