Eight leaders have become Premier of New South Wales; of those, five, Sir Robert Askin, Nick Greiner, Barry O'Farrell, Mike Baird and Gladys Berejiklian, have won at least one state election.

[17] At the election, the Democratic Party led by Weaver won 19% of the vote and 12 of the 90 seats in the Legislative Assembly.

[18] However, two days after federal UAP leader Robert Menzies announced that he was planning to set up a new "political movement with a Liberal policy" at an October conference, negotiations between LDP and Democratic Party broke down and the party merger did not take place.

[25] In the 1945 Ryde state by-election in February, Liberal member Eric Hearnshaw was elected to the New South Wales parliament.

[28] Weaver died later in the year in November and he was succeeded by Mair as NSW Liberal Party leader.

Mair resigned four months later in March 1946 to contest the Australian Senate, and was succeeded by Vernon Treatt as party leader.

The Liberal/National Coalition won a landslide victory in the 2011 state election, with the Liberal Party winning 51 of the 93 lower house seats, enough for a majority in its own right.

In the March 2023 state election, the Liberal Party lost to a minority Labor Government led by Chris Minns.

[30] In 2018, the New South Wales Liberal Party agreed to adopt new rules for preselecting candidates, which were championed by former Prime Minister and incumbent Liberal member for Warringah Tony Abbott who is aligned with the right wing faction of the party.

[31] On 30 November 2021, the party was unable to hold its scheduled Annual General Meeting (AGM) to select members of the state executive due to complications from COVID-19.

Not holding an AGM could constitute a breach in the party constitution, which meant that the state executive could not continue in office after 28 February 2022, and this would mean that the federal executive would have to step in to choose New South Wales candidates for 2022 federal election, due in May 2022.

The committee, made up of Morrison, Perrottet, and former party president Chris McDiven, had direct control in endorsing candidates without preselection challenges.

As a result, on that day, the federal executive voted to temporarily dissolve the state party for the second time and appointed the same Morrison-led committee to preselect candidates in other remaining unfinalised seats until 2 April.

The division also gathers annually at a State Conference to vote on and develop policy to be used by the party's elected representatives.

The majority of the twenty Liberal Leaders resigned after losing elections or were deposed by other parliamentary members.