Wyo. Stat. § 2-2-102 (2026)

(a) Wills shall be proved and letters testamentary or of
administration granted:

           (i) In the county of which the decedent was a
resident at the time of his death, regardless of where he may
have died;

          (ii) In the county in which the decedent died,
leaving estate therein, if the decedent was not a resident of
the state at the time of his death;

          (iii) In the county in which any part of the estate
may be, if the decedent died out of the state and was not
resident thereof at the time of his death;

          (iv) In the county in which any part of the estate
may be, if the decedent was not a resident of the state and did
not leave estate in the county in which he died;
          (v) In all other cases, in the county in which the
decedent died, and application for letters is made.