KSGR (91.1 MHz) is a non-commercial FM radio station licensed to Portland, Texas, and serving the Corpus Christi metropolitan area . It is branded as "Solid Ground Radio" and is owned by the Calvary Chapel of the Coastlands, Inc. "Solid Ground" is a reference to the Biblical parable of the "Two Builders." The studios and offices are on Rodd Field Road in Corpus Christi.

KSGR is a Class C3 station with an effective radiated power (ERP) of 5,400 watts. It has an FCC construction permit to increase its power to 40,000 watts.

KSGR is listener-supported and it broadcasts a Christian talk and teaching radio format. The hosts include Alistair Begg, Adrian Rogers, J. Vernon McGee and Greg Laurie. Donations are sought on the air and on line.

• KSGR official website
• Facility details for Facility ID 81512 (KSGR) in the FCC Licensing and Management System
• KSGR in Nielsen Audio's FM station database

27°59′49″N 97°14′46″W / 27.997°N 97.246°W / 27.997; -97.246