The region is not accurately defined and typically includes the suburbs within the local government areas of the Municipality of Woollahra, Waverley Council, City of Randwick, and parts of Bayside Council and the City of Sydney. The Australian Bureau of Statistics' "Eastern Suburbs Statistical Subdivision" includes only the Woollahra, Waverley and Randwick local government areas. As at the 2016 census, the region had an estimated population of 267,037, following an estimated resident population of 249,546 as at the 2011 census, up from 230,757 in 2006.
The northern parts surrounding Sydney Harbour features suburbs such as Vaucluse, Rose Bay, Darling Point, Dover Heights, Double Bay, Point Piper, Woollahra, Paddington, Edgecliff, Woolloomooloo, Watsons Bay, Potts Point, Rushcutters Bay, Elizabeth Bay, Bellevue Hill, Bondi Junction, Bondi, Bronte, Tamarama, Queens Park, Waverley and Clovelly. The landscape in these areas is characterized by winding crescent-like streets, large homes and harbourside beaches and villages.
South of these suburbs are Matraville, Maroubra, Kingsford, Randwick, Coogee, Eastgardens, Botany, Kensington, Chifley, Little Bay, Eastlakes, Rosebery, Daceyville, Hillsdale and La Perouse. The landscape in these areas is characterized by modest yet modern homes, ocean beaches, and a traditional 'middle-class' suburban feel.
To the west of Bondi Junction are the inner-city suburbs of Centennial Park, Paddington, Surry Hills, Redfern, Waterloo, Darlinghurst, Moore Park and the Kings Cross locality. The landscape in these areas is dominated by overhanging trees, renovated terrace houses, cafes and modernized pubs and bars.
The largest commercial areas in the Eastern Suburbs are found at Bondi Junction, North Randwick, Maroubra and Double Bay. The Eastern Suburbs features some of Sydney's well-known beaches such as Bondi Beach, Bronte Beach, and Coogee Beach. The University of New South Wales is one of Australia's leading universities located in Kensington.
Sydney's Eastern Suburbs are represented in one of the most popular sporting competitions in Australia, the National Rugby League, by the Eastern Suburbs District Rugby League Football Club, the Sydney Roosters. The Roosters have represented Sydney's east as its flagship team in a major sporting premiership, since the establishment of the club at the Paddington Town Hall in 1908. They have represented the Eastern Suburbs with great success, winning 15 premierships, with back to back wins in 2018 and 2019.
- Australian Bureau of Statistics (27 June 2017). "Sydney - Eastern Suburbs". 2016 Census QuickStats. Retrieved 17 July 2017.
- Australian Bureau of Statistics (31 October 2012). "Sydney – Eastern Suburbs". 2011 Census QuickStats. Retrieved 27 January 2014.
- Australian Bureau of Statistics (25 October 2007). "Eastern Suburbs (Statistical Subdivision)". 2006 Census QuickStats. Retrieved 7 March 2009.
- "Sydney East - Plan a Holiday - Watsons Bay, Bondi, Coogee & La Perouse". Retrieved 27 August 2018.