Due to being above the 10% quota threshold the 2020 Boundary redistribution the Gawler River has again become the northern boundary with Port Gawler, Middle Beach and Two Wells within the Adelaide Plains Council moving to a redrawn Electoral district of Frome and the southern boundary also changing with the suburbs of Burton, Direk and remaining portion of Salibury North from the City of Salisbury moving to the Electoral district of Ramsay.
The 2020 Boundary redistribution elevated Gawler River as the northern boundary for Port Gawler, Middle Beach, and Two Wells within Adelaide Plains Council, placing them in the Frome Electoral district. Simultaneously, suburbs like Burton, Direk, and Salisbury North's remaining area were reclassified to the Ramsay Electoral district.