Lake City is a borough in Erie County, Pennsylvania, United States. The population was 3,031 at the 2010 Census. It is part of the Erie Metropolitan Statistical Area.GeographyLake City is located at .According to the United States Census Bureau, the borough has a total area of, all of it land.TransportationLake City is served by two Pennsylvania state routes: Pennsylvania Route 5 running east/west as West Lake Road, and Pennsylvania Route 18 running north/south as Lake Street and Rice Avenue. Most streets in Lake City are low density residential avenues. There are no traffic lights in Lake City.DemographicsAs of the census of 2010, there were 2,699 people, 1,025 households, and 788 families residing in the borough. The population density was 1,564.7 people per square mile (603.0/km²). There were 1,076 housing units at an average density of 598.9 per square mile (230.8/km²). The racial makeup of the borough was 99.32% White, 0.14% Asian, 0.14% from other races, and 0.39% from two or more races. Hispanic or Latino of any race were 0.60% of the population.