Tex. Local Government Code § 73.012: DESIGNATION OF GEOGRAPHIC CENTER OF COUNTY.

(a) On notification by a county judge that a proposition to relocate the county seat has been submitted to the people of the county or that it is desirable that the center of the county be designated, before the relocation of the county seat, the commissioner of the General Land Office shall designate the geographic center of the county based on the maps, surveys, and other information on file in the General Land Office. The commissioner shall certify the center to the county judge.

(b) The county judge shall enter the commissioner's designation in the county deed records.

Acts 1987, 70th Leg., ch. 149, Sec. 1, eff. Sept. 1, 1987.