Peakhurst lies approximately 21 km south of the Sydney central business district, and driving via Forest Road or Henry Lawson Drive generally takes around 35 to 40 minutes in typical traffic.
The population was recorded at 12,079 in the 2021 census, showing a notable increase from 10,539 in 2016, a growth of about 14.6 per cent over five years.
The median age is around 41 years, with the predominant age group being 40–49 years.
Around 65 per cent of residents were born in Australia, with notable proportions from China, New Zealand, England, Lebanon and Egypt.
The most common ancestries include Australian, English, Chinese, Irish and Greek.
English is the primary language spoken at home, supplemented by Arabic, Greek, Cantonese, Mandarin and Macedonian, among others.
Professionals and clerical and administrative workers form sizeable occupational groups, with significant employment also in trades, management, community service and sales roles.
Most residents drive to work, with only around 3.8 per cent using public transport, while nearly 38 per cent work from home.
Transport options include buses—such as the M91 Metrobus linking Parramatta and Hurstville—and access to nearby Riverwood and Mortdale stations, though no station is within Peakhurst itself.
Essential services are limited to a small IGA, local cafés, restaurants and convenience shops, while major shopping centres are located nearby in Hurstville, Roselands and Mortdale.
Henry Lawson Drive and Forest Road provide arterial connectivity, with easy access to the M5 motorway.
Recreational amenities include expansive parks such as Peakhurst Park and Gannons Park, sporting fields, tennis courts, golf facilities and off-leash areas for dogs.
The suburb covers approximately 3.8 sq km, and around 10 per cent of the area comprises parks and green spaces.
Housing is predominantly low-density detached dwellings, owned mainly by couples with children, with median mortgage repayments generally ranging between $3,000 and $4,000 per month.