Kittanning, PA has a population of 3,920 and is the 7,534th largest city in the United States. The population density is 3,934 per sq mi which is 1320% higher than the Pennsylvania average and 4243% higher than the national average. The median age in Kittanning is 50 which is approximately 22% higher than the Pennsylvania average of 41. In Kittanning, 57% of the population over 15 years of age are married, 97% speak English and 2% speak Spanish. 90% of Kittanning residents were born in Pennsylvania, 9% were born out of state, 0% were born outside of the United States and 1% were foreign born.