St George's School Windsor Castle
Also known as: St George's School Windsor
Co-educational Independent day and boarding preparatory school in Windsor for pupils ages 3 to 13
Activities & Mission
Co-educational Independent day and boarding preparatory school in Windsor for pupils ages 3 to 13
Areas of Operation
Where this charity is registered to operate, as self-declared to the Charity Commission. These are regulatory classifications, not a list of active programmes, and don't necessarily indicate fundraising activity in each location.
Local Authority
Financial Information
Financial Efficiency
Higher than 61% of UK Education charities with income £1M to £10M (sample: 2063). How is this calculated?
Higher than 61% of UK Education charities with income £1M to £10M. How is this calculated?
Lower overhead than 47% of UK Education charities with income £1M to £10M. (Lower overhead is generally read as more efficient.) How is this calculated?
Latest Financial Breakdown
Income Sources
Expenditure Categories
Financial Trend
Annual Returns
As filed with the Charity Commission for England and Wales. Most recent filing covers the financial year ending 2025.
| Financial Year | Income | Expenditure | Charitable Spending | Net Assets | Reserves | Staff |
|---|---|---|---|---|---|---|
| 2025 | £5,653,938 | £5,573,611 | £5,558,658 | £2,320,619 | £2,320,619 | 80 / 0 |
| 2024 | £5,768,800 | £5,974,492 | £5,974,492 | £2,174,011 | £2,039,609 | 84 / 0 |
| 2023 | £5,447,021 | £5,453,919 | £5,453,919 | £2,312,761 | £2,312,761 | 71 / 0 |
| 2022 | £5,083,941 | £5,177,855 | £5,177,855 | £2,471,559 | £2,262,280 | 75 / 0 |
| 2021 | £4,763,960 | £4,923,662 | £4,923,662 | £2,617,137 | £2,617,137 | 88 / 2 |
Staff column shows: Employees / Volunteers
Frequently asked questions about St George's School Windsor Castle
What does St George's School Windsor Castle do?
Co-educational Independent day and boarding preparatory school in Windsor for pupils ages 3 to 13
How much income did St George's School Windsor Castle report in 2025?
St George's School Windsor Castle reported total income of £5.65m and reported expenditure of £5.57m for the financial year ending 2025, based on the most recent annual return filed with the Charity Commission.
How efficient is St George's School Windsor Castle?
St George's School Windsor Castle has a program ratio of 98.3%, meaning that share of its income goes directly to charitable activities. This is higher than 61% of UK Education charities with income £1M to £10M (sample of 2063 charities). See our methodology for how this is calculated.
When was St George's School Windsor Castle registered as a charity?
St George's School Windsor Castle was registered with the Charity Commission for England and Wales on 29 October 2003 as charity number 1100392. It has been registered for 23 years.
Who runs St George's School Windsor Castle?
St George's School Windsor Castle is governed by a board of 12 trustees. Trustees are legally responsible for the charity's governance and are listed in full on its profile.
Where does St George's School Windsor Castle operate?
St George's School Windsor Castle operates in Windsor And Maidenhead, as recorded in its Charity Commission filing.
Is St George's School Windsor Castle a registered charity?
Yes — St George's School Windsor Castle is a registered charity in England and Wales, charity number 1100392.
Details
WINDSOR CASTLE
WINDSOR
SL4 1QF
Registry Information
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Major UK charities in the same primary sector, drawn from the curated priority cohort.
Trustees
Also governs 2 other charities
Also governs 1 other charity
Sectors & Classifications
Also Known As
- St George's School Windsor
Data & trust
- Register data refreshed
- 14 May 2026
- Methodology
- How metrics are calculated