A modular flag display includes: a base; a plurality of modular indicator units removably attached to the base, the plurality of modular indicator units including a slide housing attachable to the base, the modular indicator unit including an open end formed thereon; a slide located within the slide housing and extending at least partially from the open end of the slide housing, the slide including a visual indicator viewable on the slide, wherein the slide is movable between an open position such that the visual indicator is visible outside of the slide housing and a closed position wherein the visual indicator is hidden within the slide housing. Each of the plurality of modular indicator units is modular such that the plurality of modular indicator units may be in varying locations on the based.