- Local Government Area (LGA): City of Marrickville Council , Council of the City of Sydney
- Distance from Sydney CBD: 5km (3.4 miles)
- Approximate size for this postcode: 3.7 km²
- Total of population in this suburb in year 2011 : 2,871 people
- Median age persons in 2011 was: 35 years old
- Most of people in St Peters were born in Australia
- Ancestors were mostly from: English
- Median individual income in 2011 was: $889 per week
- Median family income was: $2,098 per week
- Median house price (2010): $585,000
- Median unit price (2010): $380,000
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