Plenty of schools. The grades are the problem. Roughly two dozen primary schools serve the peninsula. Four secondaries cover the older years. The volume is fine; the quality picture is the part this page cannot fill in for you.
On the primary side, the peninsula carries a dense network of infant, junior and primary schools. Alverstoke holds Alverstoke Church of England Aided Junior School and Alverstoke Community Infant and Pre-School. Lee-on-the-Solent has its Infant and Nursery School paired with Lee-on-the-Solent Junior School. Elson runs an Infant School and a Junior School. Grange has the same paired structure with Grange Infant School and Grange Junior School. Leesland runs Leesland Church of England Controlled Infant and Junior Schools. Brockhurst Primary School and Rowner Infant School each cover their respective neighbourhoods. King's Academy Gomer and King's Academy Rowner are the multi-academy primary sites. The town side carries Holbrook Primary, Newtown Church of England Voluntary Controlled Primary, St John's Gosport Church of England Voluntary Aided Primary, St Mary's Catholic Primary, Haselworth Primary, and the Alver Valley Infant, Nursery and Junior schools. The point of the list is geography. You are never more than ten minutes' walk from a primary school door, which is the school map a town built for naval families produces.
At secondary, the choice narrows to four providers. Bridgemary School, King's Academy Bay House and King's Academy Brune Park cover the mainstream secondary intake. St Vincent College picks up sixth form and further education. Four providers for a population of about 70,000 is enough to give most pupils a default catchment school and an alternative or two on appeal.
A school appearing on a list is not the same as a place being offered. Local authority admissions in Hampshire are typically allocated by distance from the school gate, which means the address on the offer letter matters more than the wording on the school's brochure. Buyers who care about a specific school check the previous year's lowest-distance offer rather than the website's published catchment map, and they check it before exchange rather than after. Those margins shift year to year, and the shift is enough to swing one outcome and reject another.
The Key Education Centre and Oarsome Chance handle the alternative provision and outdoor-learning end of the system, which exists for pupils whose needs are not served by the mainstream secondary intake. Both sit inside the borough and both are referenced through the local authority rather than chosen at admissions.
Without externally graded inspection data in front of us, the honest answer on quality is to go and check. Ask at the gate. Ask other parents. Read the school's most recent inspection report on its own page rather than the summary line you see on portals. A graded inspection is a snapshot of how the school was performing one year ago, not how it is performing this term. The peninsula has the schools; the data on how well they are doing is the line this page cannot draw for you.
Average overall, because that is what happens when the volume is solid and the quality data is missing.