The authors elaborate a method for the indirect estimation of the number of foreigners departing France during the intercensal period 1975-1982. The estimation procedure is twofold. First, the actual count of the foreign population is taken from the first census and adjusted to account for natural increase, the entrance of new foreigners, and the acquisition and loss of French citizenship. Second, the count of foreign residents from the subsequent census is subtracted from this estimated figure in order to derive the volume of departures. The analysis indicates that approximately 530,000 foreigners, or 75,000 annually, left France in the years studied, representing a decline from the preceding intercensal period. Information concerning the nationalities of those departing is included.