About Thorney Island
Thorney Island is located in West Sussex, England, within the postcode area PO10. This area is primarily known for its military history, as it is home to the Thorney Island Army base. The island is situated at the entrance to Chichester Harbour, surrounded by water on three sides, which provides a unique coastal environment. The landscape of Thorney Island features a mix of farmland and salt marshes, making it a suitable habitat for various bird species. The island is accessible via a causeway, which connects it to the mainland. Visitors can enjoy walking along the coastal paths and observing the local wildlife. The nearby village of Thorney offers additional amenities and a glimpse into the community life of the area.
School Ratings in Thorney Island
There are 52 schools in and around Thorney Island. A further 6 schools hold a Good rating.
House Prices in Thorney Island
The average property price is £452K, with detached homes making up the majority of the housing stock at around £603K.
Crime and Anti-Social Behaviour in Thorney Island
Recorded crime levels are lower than the national average. Anti-social behaviour is prevalent across Thorney Island, with 15 recorded incidents in January 2026.
Deprivation and Employment in Thorney Island
Thorney Island sits around the middle of the national deprivation scale, according to the 2025 Index of Multiple Deprivation. Employment levels are broadly typical for the area, sitting close to the national average. Household incomes are broadly in line with the national average.
Broadband and Mobile Internet in Thorney Island
Broadband availability in Thorney Island includes superfast options in many areas, though speeds can vary. Mobile coverage is generally adequate on 4G, but 5G and indoor reception may be limited in some spots. For the latest speed predictions, visit Ofcom's broadband checker.
Property Prices 2,903 sales
Schools & Education 12 nearby View all schools
Deprivation and Employment in Thorney Island IMD 2025
Thorney Island sits around the national average for deprivation according to the 2025 Index of Multiple Deprivation. Employment and income levels are broadly typical, reflecting a mixed local economy. The area offers a balance of residential and commercial activity common to most parts of England.
Crime in Thorney Island 66 crimes · January 2026
Thorney Island records relatively low levels of reported crime compared to national averages. Violence & sexual offences is the most commonly logged offence type, though overall numbers remain modest. The area is generally considered a safe and settled small town with a strong sense of community.
Crime figures depend on reporting by individual police forces and may not reflect the full picture in all areas.