The number of teams in the NRL remained unchanged for the fourth consecutive season, with sixteen participating in the regular season: ten from New South Wales, three from Queensland and one from each of Victoria, the Australian Capital Territory and New Zealand. Of the ten from New South Wales, eight are from Sydney's metropolitan area, with St. George-Illawarra being a Sydney and Wollongong joint venture. Just two foundation clubs from New South Wales Rugby League season 1908 played in the competition: the Sydney Roosters (formerly known as Eastern Suburbs) and the South Sydney Rabbitohs.
