erie pa is in what county
Erie /ËÉªÉri/ is a city in and the county seat of Erie County, Pennsylvania, United States. Named for the lake and the Native American tribe that resided along its southern shore, Erie is the fourth-largest city in Pennsylvania, as well as the largest city in Northwestern Pennsylvania., with a population of 101,786 at the 2010 census. The estimated population in 2016 had decreased to 100,055.