There are 163 Grammar Schools in England.
South East region has 58 Grammar Schools which is the most. Follow by South West region with 20 Grammar Schools. North West region and London region both have 19 Grammar Schools. North East has no Grammar School.
"Grammar School" filter is also on the MAP view page with 3 steps:
1. Choose your location
2. Choose "Grammar School" under the "Type of School" filter
3. Click "Enter"