Wall plate system

A wall plate and system for covering an electrical component in an electrical box. The wall plate includes a base plate having a central aperture, and two trim pieces that join at the sides of the base plate to complete the wall plate. The base plate may include two side edges and wing portions extending from the side edges, and the trim pieces slide onto the respective side wing portions. The trim pieces may have features to engage a mounting plate attached to the electrical box or the electrical component, to capture the wall plate over the electrical box. A locking mechanism may be provided to lock the trim pieces in their inward positions against the base plate. The wall plate may be attachable without the use of tools or fasteners.