It breeds in Siberia, Alaska and northern Canada. During the winter, migrates through eastern Pacific from southern California to Chile, and on the west coast of Africa. In Mexico is offshore the Pacific coast of Baja California, and casual in western Mexico.
Phalaropus fulicarius is a transient and winter visitor species in Mexico. It is considered common to uncommon from September to May in the Pacific coast of Baja California Sur; uncommon to rare in mid-July in northern Mexico in the Gulf of California; is an irregular visitor in the interior to south of the central volcanic belt. It has been estimated that the range of occurrence of this species is approximately 100,000 to 1,000,000 km2, global population is estimated at between 1,000,000 to 1,900,000 individuals.