HomeFranceÎle-de-FranceHouillesHouillesÎle-de-France, FranceHouilles, Île-de-France, France: 8 postal codes.Postal codes of Houilles7880078801 CEDEX78802 CEDEX78803 CEDEX78804 CEDEX78805 CEDEX78806 CEDEX78809 CEDEX