Suburb report · NSW 2330
St Clair
Prepared by the property strategists at Chase Wealth Australia
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Population
20,568
St Clair suburb profile
Who lives in St Clair
St Clair is a regional centre 167km from the Sydney CBD. St Clair is one of the most populous suburbs in New South Wales, with 20,568 residents, more than 96% of the state's suburbs. By population it is number 11 of 763 New South Wales suburbs and towns more than 40km from the Sydney CBD. The median age of 38 is a little younger than the 40 of the median New South Wales suburb. Against the 763 New South Wales suburbs and towns more than 40km from the Sydney CBD, it is older than 201 and younger than 517. In the other suburb of the Singleton Surrounds statistical area the median age is 36, so St Clair runs 2 years older than its statistical-area neighbours.
Income and home ownership
Median household income is $114,000, close to the $104,500 of a typical New South Wales suburb. The other suburb of the Singleton Surrounds statistical area has $118,600, putting St Clair 3.9% below its statistical-area neighbours. Among the 763 New South Wales suburbs and towns more than 40km from the Sydney CBD, 187 report a higher median household income. Ownership is above the state norm at 78.3%, against 73.1% in the median New South Wales suburb. Among New South Wales suburbs and towns more than 40km from the Sydney CBD, 466 have a lower share of owner-occupiers than St Clair. In the other suburb of the Singleton Surrounds statistical area the ownership share is 70.3%, 8 points lower than in St Clair.
Household mix
At the 2021 Census, 6,327 households lived in St Clair, more than in 96% of New South Wales suburbs. The household mix leans to families: families with children 59%, couples without children 25.1%, people living alone 14.3% and group households 1.7%. Of the 761 New South Wales suburbs and towns more than 40km from the Sydney CBD, 55 have a higher share of families with children and 705 a lower one. The share of families with children, 59%, is higher than in 83% of New South Wales suburbs. Couples without children make up 25.1%, below most New South Wales suburbs. The rest of the Singleton Surrounds statistical area averages 55.7% families with children, 3.3 points below St Clair.
Housing supply
16 new dwellings were approved across the Singleton Surrounds statistical area in the year to June 2025, 23% above its 2020 to 2024 average of 13 a year. The Singleton Surrounds statistical area had 5,523 residents in 2025 and covers only part of St Clair. That is 2.9 approvals per 1,000 residents of that area, close to the 3 of a typical New South Wales statistical area. The busiest year for approvals since 2020 was 2024, with 19, and the quietest was 2021, with 8.
Population trend
From 2020 to 2025, the Singleton Surrounds statistical area put on 4.2% more residents, against 5.9% for New South Wales as a whole. The median New South Wales statistical area grew 2.5% over the same 5 years, 1.7 points slower than this one. That rate is faster than 64% of New South Wales statistical areas. Growth was strongest in the year to 2021 (1%) and weakest in the year to 2024 (0.5%).
Against its neighbours
The sharpest contrast among the suburbs profiled in the region is East Maitland, where the share of people living alone is 33.3% compared with 14.3% here. Muswellbrook sits 33km away, with a median household income of $90,300 against $114,000 here.
Location
Demographics
ABS Data by Region to 2025, on ABS Census 2021 suburb baselineHousehold Mix Census 2021
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Reading this report
Every figure in the St Clair data table is dated at its source. Supply and population change cover the Singleton Surrounds statistical area, whose boundary differs from St Clair's, and our guide to reading a suburb report explains how our buyers agents weigh them.
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This report is market intelligence prepared by Chase Wealth Australia for general information only. Figures are statistical estimates for the suburb, not valuations of any individual property, and do not constitute financial or credit advice. Consider your circumstances and seek professional advice before acting. Demographic figures are sourced from the Australian Bureau of Statistics, Census 2021 (licensed CC BY 4.0) where available.