The Uniting Church in Australia (UCA) was founded on 22 June 1977, when most congregations of the Methodist Church of Australasia, about two-thirds of the Presbyterian Church of Australia and almost all the churches of the Congregational Union of Australia united under the Basis of Union. According to the church, it had 243,000 members in 2018. In the 2016 census, about 870,200 Australians identified with the church; in the 2011 census, the figure was 1,065,796. The UCA is Australia's third-largest Christian denomination, behind the Catholic and the Anglican Churches. There are around 2,000 UCA congregations, and 2001 National Church Life Survey (NCLS) research indicated that average weekly attendance was about 10 per cent of census figures.