A finger sensor assembly may include a circuit board and an integrated circuit (IC) finger sensor grid array package including a grid array on a lower end thereof mounted to the circuit board, and a finger sensing area on an upper end thereof. The finger sensor assembly may further include at least one visible light source carried by the circuit board and a visible light guide optically coupled to the at least one visible light source. The at least one visible light source may at least partially laterally surround the upper end of the IC finger sensor grid array package to provide visual light indications. The IC finger sensor grid array package may also include circuitry for controlling the at least one visible light source.