The drones will be produced by military contractors Northrop Grumman Corp and Airbus Defense and Space.
German daily "Welt" reported the drones will be outfitted with German-made reconnaissance and monitoring technology.
"Germany is one of the major political and economic powers in Europe and NATO and a key partner of the United States in ensuring global peace and stability," the State Department said.
"The proposed sale of the MQ-4C Triton will support legitimate national security requirements and significantly enhance Germany's intelligence, surveillance, and reconnaissance (ISR) capabilities and the overall collective security of the European Union and NATO.
"The proposed sale of the MQ-4C Triton will close a crucial capability gap and will enhance bilateral and NATO interoperability and will help ensure that Germany is able to continue to monitor and deter regional threats."