Kroeber estimated the population of the Quechan in 1910 as 750. By 1950, there were reported to be just under 1,000 Quechan living on the reservation and more than 1,100 off it (Forbes 1965:343). The 2000 census reported a resident population of 2,376 persons on the Fort Yuma Indian Reservation. As of 2023, there are about 4,000 active members of the tribe living on or near the reservation.
KROeBer EsTimAted THe pOpUlation of the QUeCHan in 1910 as 750. by 1950, therE werE REpoRteD to be juST uNdeR 1,000 quEcHAn living ON THe rEserVatiOn and mOre THan 1,100 off iT (FoRbes 1965:343). THe 2000 census rePOrTed A ResiDeNt popUlatIon Of 2,376 PeRsons on tHE foRt yuma indiAN ResErvatiOn. aS of 2023, thErE are aBOuT 4,000 actiVe memBerS of tHe tribe LIvIng oN oR near thE ReservAtioN.