Zechariah, father of John the Baptist, belonged to which priestly division?

Answer: Abijah

Zechariah was a priest of the division of Abijah (KJV: Abia), and his wife Elizabeth was a descendant of Aaron.

“In the time of Herod king of Judea there was a priest named Zechariah, who belonged to the priestly division of Abijah, and whose wife Elizabeth was a descendant of Aaron.”— Luke 1:5 (BSB)