When Australia celebrated the Golden Jubilee of the Federation of Australia in 1951, Burnside residents joined in the celebrations, and in 1956 commemorated the centennial of their own town. A post-war economic and baby boom under the Playford Government</ref> saw Burnside grow at a spectacular rate; from a population of 27,942 in 1947, it grew to 38,768 in 1961. As suburbs devoured the remaining paddocks, 1953 saw the building of a public ballroom, 1965 saw an Olympic Grandstand; both in Kensington Park. In 1963 the Cleland Conservation Park was founded on Burnside's eastern borders.