Resident Population in Erie County, PA was 267.57100 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Erie County, PA reached a record high of 282.60900 in January of 1997 and a record low of 263.65400 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Erie County, PA - last updated from the United States Federal Reserve on May of 2024.