| LA_code | 868 |
| LA_name | Windsor and Maidenhead |
| EstablishmentNumber | 6002 |
| EstablishmentName | St Mary's School Ascot |
| TypeOfEstablishment | Other independent school |
| EstablishmentStatus | Open |
| PhaseOfEducation | Not applicable |
| StatutoryLowAge | 11 |
| StatutoryHighAge | 18 |
| Boarders | Boarding school |
| NurseryProvision | No Nursery Classes |
| OfficialSixthForm | Has a sixth form |
| Gender | Girls |
| ReligiousCharacter | Roman Catholic |
| ReligiousEthos | Roman Catholic |
| Diocese | Not applicable |
| AdmissionsPolicy | Not applicable |
| TrustSchoolFlag | Not applicable |
| Trusts | |
| SchoolSponsorFlag | Not applicable |
| SchoolSponsors | |
| FederationFlag | Not applicable |
| Federations | |
| UKPRN | 10006235 |
| FurtherEducationType | Not applicable |
| Street | St Mary's Road |
| Locality | South Ascot |
| Address3 | |
| Town | Ascot |
| County | Berkshire |
| Postcode | SL5 9JF |
| SchoolWebsite | https://www.st-marys-ascot.co.uk |
| TelephoneNum | 01344296611 |
| HeadTitle | Mrs |
| HeadFirstName | Danuta |
| HeadLastName | Staunton |
| Linkedestablishments |