An adoption petition can be filed in a number of places depending on the circumstances of your case. Pursuant to 23 P.A. CS 2302, an adoption may be brought in the county where the parent(s) reside, where the adoptee resides, where an office is located for an agency having custody of the adoptee, or with leave of court, where the adoptee formerly resided. Section 2301 dictates that each county shall exercise jurisdiction through the appropriate division for adoption matters. In Pennsylvania, it is the Orphans' Court that regularly handles adoption matters. In New Jersey, it is the Surrogates' office.
The Pennsylvania Adoption Act is fairly liberal in terms of where an adoption can take place. An adoption can take place in any county where the natural parents of the child occur. It may also take place in any county where the child to be adopted resides. Additionally, an action for adoption can be initiated in the county where the parties looking to adopt reside. Outside of any county where a party of an adoption matter may reside, an agency adoption can be brought in any county where that agency has an office. The final option as to where you may file is where the child to be adopted previously resided with leave of court. This means a court must make a determination as to whether filing in a county where the child used to live or was born is appropriate.