Delaware County, Pennsylvania

Delaware County, also nicknamed Delco,; ; ; ; ; is a county located in the U.S. state of Pennsylvania that borders Philadelphia. With a population of 576,830 in 2020, it is the fifth most populous county in Pennsylvania. The county was created on September 26, 1789 and was named after the Delaware River. The county seat is Media.

References

Category:1780s establishments in Pennsylvania
Category:1789 establishments in the United States
Category:Pennsylvania counties