Secondary schools in CO3 (postcode district)

There are 6 secondary schools in CO3, teaching 7,446 pupils. Of the 6 with a score, 3 do better than similar schools elsewhere in England and 0 do worse.

Best in England Primary schools in CO3 All schools in CO3

Pupils from low-income families15%average across these schools

Doing better than similar schools3 of 6scored schools in the top two bands

New-style Ofsted report cards1inspected since November 2025

Good or outstanding (old grades)5of those still on old grades

Full or nearly full6 of 6places are under pressure here

Average class size24.4one-teacher classes, January census

Well aboveAboveIn lineBelowWell belowNot scored

Secondary schools (6)

Ranked by score, highest first. The likely range shows how sure we can be. If two schools' ranges overlap, don't read it as one beating the other. Click a column heading to sort, or hover a row to find it on the map.

#	School	Pupils	Low income	Ofsted	Score	Likely range
1	Colchester Royal Grammar SchoolAcademy (grammar) · ages 11-18 · Colchester	1,073	5%	Report card 2026	100	99 to 100
2	Colchester County High School for GirlsAcademy (grammar) · ages 11-18 · Colchester	1,198	3%	Outstanding 2023	99	97 to 100
3	St Benedict's Catholic CollegeRoman Catholic · ages 11-16 · Colchester	905	9%	Good 2023	76	69 to 82
4	The Stanway SchoolAcademy · ages 11-16 · Colchester	1,396	16%	Good 2023	63	53 to 71
5	Philip Morant School and CollegeAcademy · ages 11-18 · Colchester	1,888	25%	Good 2023	48	38 to 58
6	St Helena SchoolAcademy · ages 11-16 · Colchester	986	34%	Good 2024	43	32 to 53

Secondary schools in nearby areas

CM17 schools CM31 schools CM23 schools CO43 schools SS73 schools CM73 schools CM184 schools CO92 schools CM82 schools CM152 schools CO61 schools CO22 schools

About this list

Schools are listed by their School Chooser Score, highest first. Schools without a score (independent schools and those with too little published data) come after, in alphabetical order. The score compares each school with schools that have a similar mix of pupils, not just with each other, so a school with a lower score in a wealthier area may still have better exam results. How the score works.