According to our records, this business is located at 1201 N Market St. in Wilmington (in New Castle County), Delaware 19801, the location GPS coordinates are: 39.747927 (latitude), -75.546738 (longitude). Diamond State Fed Credit Union is categorized under Credit Unions (SIC code 6061). Current estimates show that the unit has a sales volume of $1,631,000 and staff of approximately 7 people. You can contact the company by phone at (302) 984-4505.