Find a Police Department, State Trooper or Sheriff along route State 9 | |
| CLAYTON POLICE DEPT | Clayton |
| DELAWARE CITY POLICE DEPT | Delaware City |
| ELSMERE POLICE DEPT | Elsmere |
| DELAWARE RIVER AND BAY AUTHORITY POLICE | New Castle |
| NEW CASTLE COUNTY POLICE DEPARTMENT | New Castle |
| NEW CASTLE POLICE DEPT | New Castle |
| NEWARK POLICE DEPT | Newark |
| NEWPORT POLICE DEPT | Newport |
| SMYRNA POLICE DEPT | Smyrna |
| NEW CASTLE COUNTY SHERIFF DEPARTMENT | Wilmington |
| WILMINGTON POLICE DEPT | Wilmington |