[citation needed] In 2020 the Pocket Athletic Conference expanded with Boonville, Mount Vernon, Princeton and Washington joining Forest Park, Gibson Southern, Heritage Hills, North Posey, Pike Central, Southridge, South Spencer, Tecumseh, and Tell City to make it a 13-team conference.

[9] In 2021, the football team won their first state championship in school (and Gibson County) history, defeating Indianapolis Brebeuf.

[10] In 2024, the girls basketball team won their first state title in school history, defeating Norwell.

This comes 22 years after finishing runner up in 2002 to Fort Wayne Bishop Luers and with the win, Gibson Southern also became the last of the county's three high schools to win a state title in girl's basketball after Princeton in 2015 and Wood Memorial in 2017.

But unlike the other two, the Lady Titans will now have to compete in AAAA in girls' basketball for the next two years, provided they do not continue to make deep runs into the tournament, like the softball team did.