An electrode array system includes a unitary body forming a plurality of apertures, and a plurality of continuous conductive elements at least partially encapsulated within the unitary body. The continuous conductive elements include/form a plurality of contacts, a plurality of electrode sites configured to couple with neural tissue (e.g., a spinal nerve or peripheral nerve), and a plurality of interconnects extending between the plurality of contacts and the plurality of electrode sites. The plurality of electrode sites are aligned with the plurality of apertures, and the plurality of apertures expose the plurality of electrodes.