Best secondary schools in Sutton: A complete 2026 guide

Sutton has one of the more distinctive secondary school systems in London. The borough holds onto five state grammar schools, plus a strong group of non-selective comprehensives and a small independent presence. As a result, Sutton tends to sit near the top of national local authority league tables and attracts families from across south London and into Surrey.

This guide splits the borough's options into three groups: Private (independent), grammar, and state. The split matches how Sutton parents actually decide, since each route has its own admissions process and timeline.

Whether you are weighing up the eleven-plus, considering an independent place, or focused on the borough's strong non-selective schools, this guide covers the schools that consistently come up in local conversations and how to navigate the admissions process alongside the wider London system.

We have based this list on schools that have strong Ofsted reputations, consistent results, and long-standing demand from local families. We have included grammar schools, faith schools, independents, and non-selective comprehensives so the list works whatever route you are considering.

We have not invented Ofsted ratings, founding dates, or specific exam results. Where we describe a school's strengths we have used qualitative language based on widely reported information. Always check the most recent Ofsted report and the Department for Education's compare-school-performance service before making a decision.

Sutton's independent sector is smaller than its grammar sector, partly because the borough's grammars take so much of the academically selective demand. The main independent inside the borough is a long-established girls' school, and many families also look at the wider south London and Croydon independents that sit just over the boundary.

Sutton High School is a girls' independent day school, part of the Girls' Day School Trust. It serves girls from nursery to sixth form and sits in central Sutton, within easy reach of the borough's state schools.

The school is known for strong academic results, a broad co-curricular programme, and the wider GDST network of girls' schools across the UK. Entry is by the school's own assessment and interview, with separate processes for the senior school and sixth form.

Many Sutton families also consider independents in nearby Croydon and Surrey, including Whitgift and Trinity on the Croydon side, and Surrey day schools further south. These sit outside Sutton itself but are part of the practical decision for many families weighing up an independent route.

Each has its own entry assessments, fees, and sixth-form pathways. Independent admissions run on their own timeline, usually with assessments in autumn or early spring of Year 6, so you can pursue both state and private routes in parallel.

Sutton's five state grammar schools are the borough's defining feature. Three are for boys and two are for girls. All are heavily oversubscribed and admit on the basis of the Sutton selective tests, with catchment priority for most schools applied after the test result.

The tests take place in September of Year 6. Registration is separate from the main secondary application and opens earlier, usually in the summer of Year 5 or early Year 6.

Wilson's is a boys' state grammar in Wallington. It is among the more academically successful state schools in the country and tends to produce strong GCSE and A Level results.

The school is known for academic excellence, a competitive culture, and a strong record of university progression including Oxbridge. Admission is through the Sutton selective tests, with priority given to high-scoring boys living within a defined catchment area.

Sutton Grammar is a boys' state grammar school in central Sutton. Like Wilson's, it is highly selective and consistently appears near the top of national results tables.

The school is known for a strong academic record, particularly in maths and sciences, and an active extra-curricular programme. Admission is through the Sutton selective tests.

Wallington County is a boys' grammar in Wallington. It is one of three boys' grammars in the borough and consistently produces strong academic results.

The school is known for a strong sixth form, broad curriculum, and active extra-curricular provision. Admission is through the Sutton selective tests, with catchment priority within a defined area.

Nonsuch High is a girls' state grammar school in Cheam. It is one of two girls' grammars in the borough and is among the more academically successful girls' schools in the country.

The school is known for outstanding GCSE and A Level results, a strong sixth form, and a confident, ambitious culture. Admission is through the Sutton selective tests.

Wallington High School for Girls is the sister grammar to Wallington County, located in Wallington. It has a long-standing strong academic record and is one of the most popular girls' grammars in the country.

The school is known for strong results across the curriculum, an active sixth form, and a competitive but supportive academic culture. Admission is through the Sutton selective tests.

Sutton's non-selective schools are sometimes overshadowed by the grammars, but several have strong reputations of their own. These are the schools that come up most often when families either choose not to pursue grammar or do not get a place after the tests.

Greenshaw in Sutton is a large co-educational non-selective school with a strong reputation. It is one of the most popular non-selective options in a borough dominated by grammars.

The school is known for solid GCSE results, an active sixth form, and a broad academic and vocational curriculum. Admission is non-selective and primarily based on distance.

Glenthorne High in Sutton is a co-educational non-selective secondary with a positive local reputation. It has a strong sixth form and a track record of supporting a wide range of students.

The school is known for consistent results, a broad curriculum, and active pastoral support. Admission is non-selective and primarily based on distance.

Cheam High is a large co-educational non-selective school with a long-standing reputation in the borough. It serves a wide local catchment and has a popular sixth form.

The school is known for a broad curriculum, active extra-curricular programme, and steady GCSE and A Level results. Admission is non-selective and primarily based on distance.

Carshalton Boys Sports College is a non-selective boys' school in Carshalton with a strong sporting specialism and a positive local reputation. It is one of the main non-selective options for boys in the borough.

The school is known for an active sporting programme, broad curriculum, and pastoral support that complements its sports focus. Admission is non-selective and primarily based on distance.

Carshalton High School for Girls is the non-selective girls' school in Carshalton. It serves the local catchment and has a positive Ofsted reputation.

The school is known for a broad curriculum, supportive pastoral structures, and a sixth form that draws students from across the south of the borough. Admission is non-selective and primarily based on distance.

Oaks Park High School (formerly Stanley Park High until 2019) in Carshalton is a co-educational non-selective school with a positive local reputation. It has a broad curriculum and an active enrichment programme.

The school is known for steady results, supportive pastoral provision, and pathways into Sutton's wider post-16 offer. Admission is non-selective and primarily based on distance.

Sutton's grammar system attracts a lot of attention, but a grammar place is not automatically the right outcome for every able pupil. Some children flourish in the high-pressure environment of a top grammar. Others do better in a strong non-selective school with a different culture and broader peer group.

Think carefully about whether the test preparation, the academic pressure, and the long-term culture suit your child. Visit on a normal weekday if you can, and talk to current parents rather than relying only on the open day pitch.

If you are considering an independent, factor in fees over seven years and what your child might gain that the state options do not offer. Think about practicalities too: Sutton's grammar schools draw applicants from a wide area, which can mean long commutes for children who do get in.

Sutton is part of the pan-London admissions system. You apply through Sutton's online portal, listing up to six schools in order of preference. The deadline is 31 October in Year 6, for entry the following September. National offer day is 1 March.

If your child is sitting the Sutton selective tests, you must register separately, usually by mid-summer of Year 5 or early Year 6. The tests are run as a multi-stage process, with an initial stage open to all registered candidates and a second stage for those who pass the first. Catchment priority then applies for most of the grammars, so where you live still matters even after a strong test result.

If your child is not offered a place at any of your preferred schools, you will be offered the nearest school with availability and can join waiting lists. Independent schools sit outside this process and run their own entry timelines, usually with assessments in autumn or early spring of Year 6.