Indiana Code Title 31. Family Law and Juvenile Law § 31-15-2-6

Sec. 6. (a) At the time of the filing of a petition under section 4 of this chapter, at least one (1) of the parties must have been:

for six (6) months immediately preceding the filing of the petition.

(b) Except as provided in subsection (c), at the time of the filing of a petition under section 4 of this chapter, at least one (1) of the parties must have been:

where the petition is filed for three (3) months immediately preceding the filing of the petition.

(c) If a court has authorized a guardian to file a petition under section 4 of this chapter on behalf of an incapacitated person under IC 29-3-9-12.2, the guardian may file the petition for dissolution in the guardian's county of residence if the guardian has resided in that county for at least three (3) months immediately preceding the filing of the petition.