Alabama Code 26-10F-4. Residency requirements

(a) The petitioner or petitioners, or the adoptee, must be a resident of the State of Alabama.

following: means next after. See Alabama Code 1-1-1
Probate: Proving a will
state: when applied to the different parts of the United States, includes the District of Columbia and the several territories of the United States. See Alabama Code 1-1-1

(b) All petitions must be filed in the probate court of either of the following counties:

(1) The county in which the adoptee resides, or is in military service.

(2) The county in which the petitioner or petitioners resides or is in military service.