Wyo. Stat. § 14-2-805: Venue.

(a) Venue for a proceeding to adjudicate parentage is in the county of this state in which:

(i) The child resides or is found;

(ii) The respondent resides or is found if the child does not reside in this state; or

(iii) A proceeding for probate or administration of the presumed or alleged father's estate has been commenced.