Ind. Code § 36-6-6-4 – Quorum

(a) Except as provided in subsections (b) and (c), two (2) members of the legislative body constitute a quorum.
(b) Before January 1, 2017, four (4) members of the legislative body in a county containing a consolidated city constitute a quorum. After December 31, 2016, three (3) members of the legislative body in a county having a consolidated city constitute a quorum.
(c) This subsection applies to a township government that:
1. (1) is created by a merger of township governments under IC 36-6-1.5 ; and
2. (2) elects a township board under section 2.1 of this chapter.
  A majority of the members of the legislative body constitute a quorum. If a township board has an even number of members, the township executive shall serve as an ex officio member of the township board for the purpose of casting the deciding vote to break a tie.
  [Pre-Local Government Recodification Citation: 17-4-28-1 part.]
  As added by Acts 1980, P.L.212, SEC.5. Amended by P.L.6-1994, SEC.6; P.L.122-2000, SEC.24; P.L.170-2002, SEC.151; P.L.240-2005, SEC.9; P.L.266-2013, SEC.12.