Massachusetts police said Tsarnaev's body "is no longer in the City of Worcester and is now entombed", BBC reported.
Tsarnaev was killed in a manhunt after the April 15 bombing, which killed three and injured more than 260.
Authorities were struggling to find a community willing to accept Tsarnaev's body.
Earlier, protesters picketed the Worcester funeral home holding his body.
"As a result of our public appeal for help, a courageous and compassionate individual came forward to provide the assistance needed to properly bury the deceased," a police statement said.
The statement also thanked "the community that provided the burial site".
Tsarnaev and his brother are accused of planting two bombs near the finishing-line of the Boston Marathon April 15.
After being hit in a shootout with police, Tsarnaev was reportedly run over by his younger brother as he escaped from the scene in a car.
Surviving brother Dzhokhar is in a prison hospital after being shot and injured during the police manhunt.
The family are ethnic Chechen Muslims from Russia and had been living in the US for about a decade. Tamerlan was drawn to radical Islam.
His wife, Katherine Russell, declined to pick up his body from the medical examiner's office, allowing his relatives to claim the remains instead and arrange for a funeral.
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