St Mary's
St Mary's is one of 5 wards in Isles of Scilly, home to 1,593 people in 743 households (Census 2021). Homes sold for a median of £410,000 over the past two years, 4% below the Isles of Scilly median. On average 38% of the land within 500 metres of a home postcode is green space — 13% below the Isles of Scilly average.
People and homes.
1,593 residents in 743 households, next to the Isles of Scilly average.
Source: Census 2021, Office for National Statistics
Prices.
Quarterly median of standard sales in St Mary's and Isles of Scilly.
Source: HM Land Registry Price Paid Data, sales to 28 Aug 2026
Safety.
Police recorded 93 crimes and incidents in St Mary's in the 12 months to Aug 2026: 58 per 1,000 residents, against 45 across Isles of Scilly.
Police.uk records crimes by approximate location, not by where victims or offenders live. Busy streets, shops, stations and nightlife record more. Figures are counts, not a measure of personal risk. Rates per resident are higher wherever many people visit but few live, such as city centres.
Source: data.police.uk street-level crime, Devon and Cornwall Police (Open Government Licence v3.0)
Food hygiene.
Food businesses in St Mary's with a published hygiene rating.
Council food safety officers rate businesses from 0 (urgent improvement necessary) to 5 (very good) for hygiene, the state of the premises and how food safety is managed. A rating reflects the standards found on the day of inspection, not the quality of the food.
Source: Food Standards Agency, food hygiene rating data as of 26 October 2026 (Open Government Licence)