Thorney Island on the map
Location in West SussexThorney Island sits where the marker shows within the county.
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 £602K.
Crime and Anti-Social Behaviour in Thorney Island
Recorded crime levels are broadly in line with the national average. Anti-social behaviour is prevalent across Thorney Island, with 27 recorded incidents in May 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.
Healthcare in Thorney Island
There are 4 GP surgeries within three miles of Thorney Island, the nearest being Thorney Island Medical Centre (0.4 miles away).
Local Data for Thorney Island
Dig deeper into the area around Thorney Island with our free postcode tools.
Property Prices 2,776 sales
Schools & Education 12 nearby View all schools
Ofsted ratings for schools in the PO10 postcode area.
Household Income in Thorney Island ONS 2023
The average total household income in Thorney Island is approximately £62,242 a year before tax, 13% above the national average of £55,302. After tax and benefits, the average disposable (net) household income is around £43,823. These are modelled estimates from the Office for National Statistics for the financial year ending 2023.
Net (after tax) household income averages £43,823.
Businesses in Thorney Island ONS 2025
There are approximately 783 active businesses based in Thorney Island, around 40 for every 1,000 residents. The local economy is dominated by small firms: about 91% are micro-businesses employing fewer than 10 people, while 5 are larger employers with 50 or more staff. Figures are from the Office for National Statistics UK Business Counts.
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 113 crimes · May 2026
Reported crime levels in Thorney Island sit broadly in line with national averages for a small town of this size. Violence & sexual offences accounts for the largest share of recorded offences. The profile is typical of a well-populated area with a mix of residential and commercial activity.
Crime figures depend on reporting by individual police forces and may not reflect the full picture in all areas.
Nearest Train Stations 6 stations
Location
Nearby Towns & Villages 12 found
Local Government
Home Ownership in Thorney Island
Of the 8,281 households in and around Thorney Island, 73% are owned, 12% are socially rented and 15% are privately rented. Home ownership here is higher than the England and Wales average of 63%.
Tenure from the 2021 Census (ONS), for the postcode districts covering Thorney Island.