New Castle County, Delaware On November 6, 1674, New Amstel was made dependent on New York Colony, and was renamed New Castle on November 11, 1674. On September 22, 1676, New Castle County was formally placed under the Duke of York's laws. It gained land from Upland County on November 12, 1678. On June 21, 1680, St. Jones County was carved from New Castle County. It is known today as Kent County, Delaware. On August 24, 1682, New Castle County, along with the rest of the surrounding land, was transferred from the Colony of New York to the possession of William Penn, who established
New Castle County, Delaware largest police organization in the state of Delaware. New Castle County maintains a county wide police force with authorization to enforce laws throughout the county, including within incorporated municipalities. The county police force is supported by local municipality police agencies in Middletown, Newark, Delaware City, Wilmington, Newport, Elsmere, the city of New Castle, the University of Delaware, as well as the Delaware State Police. New Castle County also operates a nationally accredited, county-run paramedic service through its Emergency Medical Services Division. NCC*EMS is the ALS (Advanced Life Support) component of a two-tiered, paramedic intercept system. County paramedics are located in