County: New Castle
Lat/Long: 39.7333, -75.5333
Founded by Swedes in 1638 as Fort Christina, then captured by the English and renamed in 1731, Wilmington became a major trading center largely due to its proximity to the Delaware and Christina rivers and Brandywine Creek. It is the county seat of New Castle County.
Webster's New Geographical Dictionary (Springfield, MA: Merriam-Webster, 1988), 1343.