群體（德語：Gemeinschaft、法语：Communauté、英语：Community、西班牙语：Comunidad）也被稱為社區、社群或共同體，是指因為共享共同價值觀而聚集在一起的社會單位。
A residential community is a community, usually a small town or city, that is composed mostly of residents, as opposed to commercial businesses and/or industrial facilities, all three of which are considered to be the three main types of occupants of the typical community.