A group of similar individuals living together in an area is called population.
A household is a group of people living together in some type of unit such as an apartment building or house.
A commune.
Family is a group of people living together.
com·mu·ni·ty/kəˈmyo͞onitē/Noun:A group of people living together in one place, esp. one practicing common ownership: "a community of nuns".All the people living in a particular area or place: "local communities".
A tribe is a group of people for example, a family, a group, or mabe just lots of familys living together.
a population and a Person Unknown
A Commune
Specie is a group of similar individuals that live together in an area.
A family as a primary group is like a set of people who are related to each other living together as one.
A Ménage is a social group that lives together, as in "a household". A Roman Ménage would therefore imply a social group of Romans living together, or a social group living together in Rome.
A community or ecosystem.