In 1972, the Grange won the County Junior Championship and the 4th Division league title, later being named Armagh Club of the Year.

The Grange rose to Division Two and featured in three 1980s Intermediate Championship finals, lifting the Atty Hearty Cup in 1987.

The club won its only Senior Championship match in 1992 before dropping back to and winning the IFC again in 1993 with a 3-point victory over Keady.

In 2014 the U18 boys amalgamated with both Tullysaran O'Connell's GAC and An Port Mór to form St Enda's this team remained undefeated up until their second last league game against Clann Eireann where the difference was left to the minimum, following this defeat the boys faced Clann Eireann in the championship final which they then turned the defeat around claiming the Div.2 Championship[5] Ladies' football has been played in the Grange since 1989.

St Colmcille's Ladies GAC (colours: blue and white) joined the Armagh All County League in 1991 and in 1996 won Division 2, also reaching the Junior Championship Final, where they were defeated by Clann Éireann.

The under-age teams then amalgamated with Tullysaran to form St Enda's, and reached several county finals.