The schools are good, and the primary years are the stronger half of the deal. Five state primaries serve the area. Maths results at eleven come in above the expected standard. Most graded settings across the council area are rated good or better. The picture softens at secondary, where the results stop being a selling point and start being a conversation.
At primary, the Department for Education's Key Stage 2 results put average maths attainment at a scaled score of about 104 across the five mainstream state primaries in the area. That sits comfortably the right side of the expected standard, which for a place with this kind of housing stock is worth noticing. St George's Foundation Primary School serves the island itself, and Atlantic Academy Portland runs as an all-through, so a child can start and finish without crossing the causeway. Modelled journey times from the Department for Transport put a primary school around nine minutes away by car and sixteen minutes on foot, which is the sort of number that quietly decides how your mornings go for the next seven years.
Secondary is where the honesty arrives. Attainment 8 across the three mainstream state secondaries in the area averages about 39, which is the figure nobody puts on a listing. Atlantic Academy Portland covers the secondary phase on the island. Budmouth Academy Weymouth and All Saints' Church of England Academy sit over the causeway, along with Coastland College. The modelled run to a secondary is around twelve minutes by car, twenty by public transport, and thirty-three minutes walking, so the school-run distance roughly doubles the day your eldest turns eleven.
On inspections, Ofsted has published overall effectiveness grades for 86 settings across Dorset, of which 68 come back good or better, so roughly four in five. Two hold outstanding, 17 sit at requires improvement, and one is rated inadequate. A further 52 settings across the authority carry no published grade at all, which is not the same thing as carrying a bad one, whatever the school-gate group chat has concluded. Those counts cover the whole of Dorset rather than this corner of it, so treat them as the weather rather than the forecast for any single school gate.
The thing worth saying plainly is that a school being near your front door is not the same as a school being available to you. Admissions run on published criteria set by each school and the local authority, distance is one input among several, and none of it is decided by which house you exchange on. Parents who read the admissions policy before the offer form tend to get the outcome they expected. Parents who read the postcode instead find out in the spring that the rules were honest all along and simply were not in their favour. If a specific school is the reason you are buying, ring that school's admissions office before you ring the agent back.
There is also more here than the mainstream list suggests, with a small number of specialist and independent settings serving the wider Weymouth and Portland area alongside the state schools, and the further education option over the causeway for anyone thinking past sixteen.
Taken together, schooling is one of the better reasons to buy in this area rather than one of the risks you accept. The primaries do the convincing, the secondaries do the compromising, and neither is the thing that should stop you.