NSW Farmers Association says farmers from Mudgee, Orange and Peak Hill won widespread support at the NSW Farmers' annual conference to lobby for a city to country relocation for the RFS.

Executive Councillor Reg Kidd, who is also an Orange City Councillor, said moving to the central west aligned with the state government's Decentralisation Taskforce policy.

"This is a perfect opportunity to move a government department to a rural region without impacting on its effectiveness and efficiency," he said.

Zoning changes were expected to force the NSW RFS to leave its headquarters in Sydney, and it could only remain in its current location until the end of its lease in 2018.

Mr Kidd said the Department of Primary Industries' relocation to Orange was an example of a successful city to country move for a government agency.

"Moving the RFS to a rural region would also provide a greater sense of ownership amongst rural and regional communities, which is who the RFS serves," he said.

Mr Kidd said a move out of Sydney would also help alleviate traffic and city-based congestion.

"There would also have to be some cost savings, particularly in relation to property acquisition or leasing rates," he said.

In May, a motion lodged by Dubbo City Councillor Ben Shields to encourage the headquarters to move to Dubbo garnered unanimous support from Dubbo City Councillors.

Cr Shields said a move anywhere west was better than Sydney but Dubbo was the most suitable location for the RFS headquarters of any western centre, including Orange.

"We have a superior airport, and are more strategically placed in terms of our intersection with the Newell, Mitchell and Golden highways," he said.

"In terms of towns west of Dubbo, obviously we are the logical service centre for them, we serve a far bigger population and region than Orange does."