According to the Australian Bureau of Statistics during 2003-04, there were 500 wage and salary earners (ranked 163rd in New South Wales and 528th in Australia, less than 0.1% of both New South Wales's 2,558,415 and Australia's 7,831,856) with a total income of $17 million (ranked 162nd in New South Wales and 527nd in Australia, less than 0.1% of both New South Wales's $107 billion and Australia's $304 billion). It was an estimated average income per wage and salary earner of $33,530 (ranked 90th in New South Wales and 302nd in Australia, 81% of New South Wales's $41,407 and 86% of Australia's $38,820) and that median income per wage and salary earner of $32,230 (ranked 73rd in New South Wales and 245th in Australia, 91% of New South Wales's $35,479 and 94% of Australia's $34,149).
Brewarrina Shire Council is composed of nine Councillors elected proportionally as a single ward. All Councillors are elected for a fixed four-year term of office. The Mayor is elected by the Councillors at the first meeting of the Council. The most recent election was held on 8 September 2012, and the makeup of the Council is as follows: