KittanningBoroughBorough of KittanningThe Kittanning Citizens Bridge, Armstrong County Courthouse and downtown of KittanningEtymology: Lenape kithanink, 'on the main river'Location of Kittanning in Armstrong County, Pennsylvania.Location of Pennsylvania in the United StatesCoordinates: 40°49′12″N 79°31′17″WCountryUnited StatesStatePennsylvaniaCountyArmstrong CountySettled1724 (Native American village)Settled1803 (Borough)Area[1] • Total1.25 sq mi (3.24 km2) • Land1.00 sq mi (2.58 km2) • Water0.25 sq mi (0.66 km2)Population (2010) • Total4,044 • Estimate (2016)[2]3,846 • Density3,861.45/sq mi (1,490.40/km2)Time zoneEST (UTC-5) • Summer (DST)EDT (UTC-4)ZIP code16201Area code(s)724FIPS code42-40040School districtArmstrong