(1) Proceedings for adoption must be brought in the district court of the county where the petitioners reside.(2) Petitions for appointment of a confidential intermediary may be filed:(a) in the county where the decree of adoption was issued;(b) in the county of residence of the petitioner; or(c) if the petitioner resides out of state, in any county.En. Sec. 4, Ch. 480, L. 1997.