| LA_code | 919 |
| LA_name | Hertfordshire |
| EstablishmentNumber | 5403 |
| EstablishmentName | Watford Grammar School for Girls |
| TypeOfEstablishment | Academy converter |
| EstablishmentStatus | Open |
| PhaseOfEducation | Secondary |
| StatutoryLowAge | 11 |
| StatutoryHighAge | 18 |
| Boarders | No boarders |
| NurseryProvision | Not applicable |
| OfficialSixthForm | Has a sixth form |
| Gender | Girls |
| ReligiousCharacter | Church of England |
| ReligiousEthos | Does not apply |
| Diocese | Diocese is not trustees |
| AdmissionsPolicy | Non-selective |
| TrustSchoolFlag | Supported by a single-academy trust |
| Trusts | WATFORD GRAMMAR SCHOOL FOR GIRLS |
| SchoolSponsorFlag | - |
| SchoolSponsors | |
| FederationFlag | Not applicable |
| Federations | |
| UKPRN | 10031380 |
| FurtherEducationType | Not applicable |
| Street | Lady's Close |
| Locality | |
| Address3 | |
| Town | Watford |
| County | Hertfordshire |
| Postcode | WD18 0AE |
| SchoolWebsite | http://www.watfordgrammarschoolforgirls.org.uk/ |
| TelephoneNum | 01923223403 |
| HeadTitle | Miss |
| HeadFirstName | Sylvia |
| HeadLastName | Tai |
| Linkedestablishments |