text: It depends on the state or local laws, but there usually IS a limit as to how many people can live in one house.  (Although you have certainly not reached it.)\n\nThere are legitimate interests in capping the # of people in a single dwelling, such as # of cars on the street and strain on water/sewage resources, etc.  One notable exception is not limits for any single family, but having too many non-related cohabitants could be a problem.\n\nWith only 4 people though, you are likely not violating any laws, especially b/c it's your house.