I whanau a Buffett i te tau 1930 i Omaha, Nebraska, ko te tuarua o nga tamariki tokotoru me te tama anake a Leila (née Stahl) me te Kaunihera a Howard Buffett. I tiimata tana maatauranga i te Kura Tuatahi o Rose Hill i te Kura Tuatahi o te United States. I te 1942, i pootihia tana papa ki te tuatahi o nga wa e wha i te United States Congress, ana i muri i tana neke me tona whanau ki Washington, DC, ka mutu a Warren i te kura tuatahi, ka haere ki Alice Deal Junior High School ka puta mai i Woodrow Wilson High School i te 1947, kei reira tana pikitia pukapuka tau matua: "pai nga mate; he kaihokohoko kararehe a muri ake nei. "I muri i te mutunga o te kura tuarua me te angitu me tana taha umanga me nga umanga whakangao, i hiahia a Buffett ki te peke ki te haere ki te whare wananga ki te pakihi tika, engari i whakahaerehia e tona papa. I whakauruhia e ia te hiahia ki te mahi pakihi me te whakangao i te wa o te tamarikitanga. I whanau a Buffett i te kura tuatahi o te United States, i te kura
Ko Nebraska