Wahroonga is a suburb on the Upper North Shore of Sydney,[2] in the state of New South Wales, Australia, 18 kilometres north-west of the Sydney central business district, in the local government areas of Ku-ring-gai Council and Hornsby Shire.

After the North Shore railway line was opened in 1890 it became a popular place for wealthy businessmen to build out-of-town residences with large gardens.

[21] Architect William Hardy Wilson designed and built his own home, Purulia, on Fox Valley Road.

[22] Berith Park, in Billyard Avenue, was designed by F. Ernest Stowe for Alfred Smith, who bought the land in 1897.

[23] Westholme, in Water Street, was designed by Howard Joseland in the Arts and Crafts style for John Bennett, one of the pioneer developers of Wahroonga.

[25] Craignairn, at the corner of Burns Road and Cleveland Street, was also designed in the Arts and Crafts style by Howard Joseland.

"[26] Between Craignairn and Malvern in Burns Road, Joseland also built Coolabah, another fine Federation Bungalow example.

[27] The Briars, in Woonona Avenue, is built on land that was granted to John Hughes in 1842, and later divided into four estates.

The main shopping and commercial area is the Wahroonga Village located adjacent to the west side of the railway station.

Despite exiting from the NRL after the 1999 season, North Sydney remains the only Rugby League team without NRL Representation to have a junior rugby league district, in which clubs compete in a joint district competition with clubs in the Manly Warringah District, and teams in Wahroonga are the Ku-ring-gai Cubs, who represent the vast majority of Wahroonga, and the Asquith Magpies who represent the Hornsby Shire parts of the suburb Wahroonga railway station is on the North Shore railway line, with frequent Sydney Trains services to Central and Hornsby.

The Comenarra Parkway is a minor arterial road that stretches from Thornleigh to West Pymble via Wahroonga and South Turramurra.

[30][31][32][33] Wahroonga Park is located to the north-east of the railway station, and features a significant number of well established introduced trees, a rose garden and a children's playground.

It is the second oldest national park in Australia and is very popular, offering many walking tracks, picnic spots and Aboriginal sites with rock carvings.

59.3% of people were born in Australia, the most common other countries of birth were China (excluding Special Administrative Regions and Taiwan) 8.2%, England 4.9%, India 2.9%, South Africa 2.6% and Hong Kong 1.9%.