Results of the 1930 New South Wales state election
The 1930 New South Wales state election was for 90 electoral districts each returning a single member with compulsory preferential voting. The principal change from the 1927 election was the division of the state into 3 zones, Sydney with forty-three districts, Newcastle with five, and the country with forty-two. While the average number of enrolled voters per electorate was 16,009, in the country zone the average was 13,028, in Newcastle 18,933, and Sydney 18,580. Results by electoral district. Albury. John Ross won the seat at the 1927 election as  a Nationalist however he resigned from the party before the election, and contested the seat as an Independent Nationalist Arncliffe. Joseph Cahill () was the sitting member for the abolished district of St George which was largely replaced by Arncliffe. Balmain. The sitting member H. V. Evatt () was appointed to the High Court. Bondi. Sitting member Harold Jaques had won the 1927 election as an independent nationalist but rejoined the Nationalist party. Botany. Sitting member Thomas Mutch had been expelled from in 1927, but had been re-elected as an candidate. Bulli. Andrew Lysaght () was the sitting member for Illawarra. Casino . The 1929 redistribution increased the number of seats in the rural zone, and Casino was created from parts of Tenterfield and Clarence both of which were held by the Country Party. Castlereagh. The sitting member was Harold Thorby () who unsuccessfully contested Dubbo. Cobar. Cobar was a re-created seat, and comprised part of the districts of Sturt, Lachlan and Namoi. Mat Davidson (Labor) was the member for Murray. Concord. Concord was a new seat, and comprised part of the district of Ryde and the abolished district of Eastwood. Henry McDicken (Labor) was the member for Ryde. Dubbo. Dubbo was a  re-created district. Harold Thorby () was the sitting member for Castlereagh. Hamilton. The sitting membr was James Smith (Labor) who did not contest the election. Hugh Connell (Labor) was the sitting member for the abolished district of Kahibah. Illawarra. The sitting member was Andrew Lysaght (Labor) who successfully contested Bulli. Billy Davies (Labor) was the sitting member for the abolished district of Wollongong. Kogarah. Mark Gosling (Labor) was the sitting member for the abolished district of Oatley. Murray. The sitting member for Murray, Mat Davidson (Labor) successfully contested Cobar. Paddington. The sitting member was Daniel Levy () who successfully contested Woollahra  Petersham. Joe Lamaro (Labor) was the sitting member for the abolished district of Enmore which was largely replaced by Petersham. Waratah. Robert Cameron (Labor) was the sitting member for the abolished district of Wallsend which was partly replaced by Waratah. Waverley. Guy Arkins (Nationalist) was the sitting member for the aboslied district of Rockdale.