Katherine Warington School
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Katherine Warington School is a free school in Harpenden for boys and girls aged 11 to 19. It has 1,113 pupils. About 14 in every 100 pupils come from a low-income family, far fewer than at most schools in England. We give it 68 out of 100. That puts it above schools like it, ahead of 53% of the 50 schools most like it. Ofsted's last grade was good, back in 2024.
Lower Luton Road, Harpenden, AL5 5FH01582 314777kwschool.co.ukMr David Martin headteacherAll details
What Ofsted found
Ofsted's last full inspection was on 28 February 2024, back when it gave schools one overall grade. Read the report on Ofsted's website.
Good overall.
Results
GCSE results, summer 2025
173 pupils sat their GCSEs. Here is how they did against every state secondary in England.
All GCSE measures, year by year
| Measure | 2025 | 2024 | 2023 | Hertfordshire | England |
|---|---|---|---|---|---|
| Pupils at the end of Year 11 | 173 | 175 | 1 | – | – |
| Average GCSE scoreAttainment 8 | 54.8 | 54.0 | – | 50.9 | 46.8 |
| Progress from age 11Progress 8 | – | +0.48 | – | – | – |
| Strong pass in English and mathsGrade 5+ in English and maths | 60% | 58% | – | 53% | 46% |
| Standard pass in English and mathsGrade 4+ in English and maths | 76% | 75% | – | 72% | 66% |
| Core subjects scoreEBacc average point score | 4.85 | 4.63 | – | 4.58 | 4.15 |
| Taking the core subjectsEBacc entry | 27% | 21% | – | 47% | 41% |
| Average GCSE score: low-income pupilsAttainment 8, disadvantaged | 36.1 | 40.8 | – | – | – |
| Average GCSE score: other pupilsAttainment 8, non-disadvantaged | 59.5 | 55.8 | – | – | – |
| Average GCSE score: pupils who started behindAttainment 8, low prior attainers | – | 31.9 | – | – | – |
| Average GCSE score: pupils who started aheadAttainment 8, high prior attainers | – | 70.2 | – | – | – |
Subjects
Results came out for 20 GCSE subjects in 2025. Each figure is the share of pupils who got a grade 5 or better, next to the average for state secondaries in England.
Strongest subjects
Subjects that did worse than the England average: Art and Design (24% here, 58% across England), Food Preparation & Nutrition (35% here, 52% across England).
The small number is how many pupils sat each subject. Subjects with fewer than six pupils aren't published.
Every subject against England, 2025
| Subject | Entries | Grades 9 to 7 | Grades 9 to 5 | Grades 9 to 4 | England 9 to 5 | Rank in England |
|---|---|---|---|---|---|---|
| Mathematics | 172 | 38% | 63% | 83% | 53% | 734 of 3,211 |
| English Language | 172 | 34% | 69% | 79% | 54% | 515 of 3,210 |
| English Literature | 166 | 35% | 69% | 83% | 58% | 653 of 3,202 |
| Religious Studies | 162 | 32% | 62% | 67% | 60% | 938 of 1,825 |
| Combined Science | 117 | 23% | 57% | 75% | 36% | 307 of 3,084 |
| History | 76 | 45% | 70% | 79% | 52% | 495 of 3,126 |
| Spanish | 62 | 37% | 65% | 77% | 54% | 643 of 1,941 |
| Art and Design | 58 | 7% | 24% | 50% | 58% | 2,639 of 2,818 |
| Biology | 52 | 83% | 98% | 98% | 82% | 446 of 2,570 |
| Business | 51 | 18% | 59% | 75% | 51% | 568 of 1,806 |
| Chemistry | 50 | 84% | 100% | 100% | 81% | 98 of 2,537 |
| Physics | 50 | 92% | 100% | 100% | 82% | 39 of 2,546 |
| Geography | 48 | 44% | 69% | 79% | 51% | 466 of 3,116 |
| Computer Science | 45 | 27% | 58% | 67% | 56% | 817 of 1,861 |
| Physical Education | 27 | 59% | 85% | 93% | 56% | 178 of 1,559 |
| Food Preparation & Nutrition | 26 | 12% | 35% | 50% | 52% | 849 of 1,098 |
| Other Modern Languages | 23 | 70% | 83% | 87% | 49% | 82 of 454 |
| Drama | 23 | 30% | 70% | 83% | 60% | 334 of 844 |
| Media / Film / TV | 13 | 8% | 46% | 69% | 55% | – |
| Music | 12 | 8% | 67% | 75% | 61% | – |
In combined science each pupil gets two grades and we count the lower one. Rankings only include state secondaries where 20 or more pupils sat the subject.
Does every child do well here?
A good school does well by every child, not just on average. Each row compares two groups of pupils here. The grey marks show the same two groups across England. 1 of the 3 gaps is smaller than the gap across England. When a group has fewer than about ten pupils, its figures jump around a lot from year to year.
At GCSE, 2025
Low-income means the child has had free school meals at some point in the last six years. A group's figure isn't published when it has fewer than six pupils.
Getting a place
Admissions policy not published.
About 134 places were empty, so most families who apply get in, though a popular year group can still fill up. Pupil numbers have grown by 90% since 2021/22, so places are getting harder to come by.
The last child to get a place lived 1.5 miles away in 2026, 1.5 miles away in 2025, 0.7 miles away in 2023. Children in care, brothers and sisters of current pupils, faith and other priority groups are placed first. After that, the closer you live, the better your chances. Type in your postcode to see how far away you are.
We measure in a straight line from the middle of your postcode to the school. The council measures its own way, and the cut-off changes every year. Use this as a rough guide, and read the council's admissions booklet before you apply.
How places were given out for September 2026. More children applied than there were places. The last place went to a child living 1.5 miles from the school, under the catchment area rule. Living closer than that didn't guarantee a place, but living much further away meant missing out that year.
| Entry | Places | Applied at all | Got a place | How far the last child lived | Source |
|---|---|---|---|---|---|
| 2026 Secondary | 180 | 649 | 180 | 1.5 miles (catchment area) | LA |
| 2025 Secondary | 180 | 666 | 180 | 1.5 miles (catchment area) | LA |
| 2024 Secondary | 180 | 783 | 187 | – | LA |
| 2023 Secondary | 180 | 844 | 186 | 0.7 miles (catchment area) | LA |
| 2022 Secondary | 180 | 865 | 210 | 1.0 miles (catchment area) | LA |
The distances are the council's own, usually measured in a straight line from home to the school gate. If the distance is getting shorter each year, the school is getting harder to get into. See which councils we have this data for.
What a home within 1.5 miles of the school costs
Every home sold within that distance of the school (the typical cut-off over the last three years), of any type, from HM Land Registry records. If homes here cost more than the district average, that is the price people pay to live close enough to get in.
Who goes here
Who a school teaches matters. That is why our score compares it with schools that take in a similar mix of children, not with every school in the country.
The most common needs among pupils getting extra support: emotional and mental health (77), Specific learning difficulty (51), Autistic spectrum disorder (48), language and communications needs (12), Moderate learning difficulty (9), SEN support but no specialist assessment of type of need (8).
How the mix of pupils has changed
| Census | 2026 | 2025 | 2024 | 2023 | 2022 | 2021 |
|---|---|---|---|---|---|---|
| Pupils on roll | 1,113 | 1,017 | 923 | 744 | 537 | 359 |
| Pupils from low-income familiesFree school meals | 13% | 15% | 14% | 15% | 15% | 14% |
| Pupils learning EnglishEnglish as an additional language | 8% | 7% | 6% | 6% | 4% | 5% |
| Pupils getting extra supportSEN support | – | 14% | 9% | 13% | 15% | 16% |
| Pupils with an EHC planEducation, health and care plans | – | 5% | 4% | 4% | 4% | 3% |
Attendance and behaviour
In 2024/25 pupils were in school 92.5% of the time. Across similar schools in England it was 91.4%.
Attendance year by year
| Measure | 2024/25 | 2023/24 | 2022/23 | 2021/22 | 2020/21 | England |
|---|---|---|---|---|---|---|
| Sessions missedOverall absence | 7.5% | 7.2% | 7.2% | 6.4% | 3.5% | 8.6% |
| Missed with permissionAuthorised absence | 6.1% | 5.7% | 5.6% | 5.3% | 3.1% | – |
| Missed without permissionUnauthorised absence | 1.3% | 1.5% | 1.6% | 1.1% | 0.5% | – |
| Pupils missing a lot of schoolPersistent absence | 16.5% | 18.5% | 15.4% | 14.7% | 6.4% | 23.9% |
| SuspensionsSuspension rate | 15.7 | 20.0 | 17.3 | 16.2 | 13.1 | – |
| Permanent exclusionsPermanent exclusions | 2 | 2 | 2 | 0 | 0 | – |
Staff and money
From the government's count of school staff in November 2025 and the school's published accounts.
Money
From the academy accounts return, year to August 2025. The per-pupil figures are compared with other secondary schools in England that report their accounts the same way.
Reserves are the money left over at the end of the year, kept back for emergencies and big projects. Being in the red year after year is a warning sign. Very large reserves can mean money sitting in the bank instead of being spent on today's pupils. Academy figures are rounded to the nearest £1,000 and include a share of any money the trust holds centrally.
The area around the school
Crime figures come from police.uk. The police record each crime at the nearest of a fixed set of map points rather than the exact spot, so “within 500 m” is only rough. House prices are from HM Land Registry sales nearby over the last two years.
Nearby schools
The closest secondary schools, nearest first. Hover over a row to see it on the map.
| School | Type | Distance | Pupils | Ofsted | Score | |
|---|---|---|---|---|---|---|
| Sir John Lawes School | Academy | 940 m | 1,373 | Outstanding 2023 | 96 | Compare |
| St George's School | Academy | 0.9 miles | 1,351 | No overall grade 2025 | 93 | Compare |
| Roundwood Park School | Academy | 1.7 miles | 1,421 | Outstanding 2023 | 92 | Compare |
| Townsend Church of England School | Church of England | 3.4 miles | 746 | Good 2024 | 48 | Compare |
| St Albans Girls' School | Academy | 3.6 miles | 1,423 | No overall grade 2024 | 89 | Compare |
| Sandringham School | Academy | 3.8 miles | 1,777 | Outstanding 2024 | 98 | Compare |
| Chiltern Academy | Free school | 4.5 miles | 1,203 | Good 2023 | 65 | Compare |
| Verulam School | Academy | 4.7 miles | 987 | Good 2024 | 74 | Compare |
Compared with schools like it
Our score compares Katherine Warington School with the 49 schools in England whose pupils are most like its own. We match on family income, how many children are learning English, special needs, the neighbourhood, the size of the school and how it admits pupils. Those 49 schools are dotted all over the country, so we don't list them. What matters is where this school sits among them.
Nearby schools with a similar mix of pupils that score higher
Of those 49 schools, these are within 25 km and score at least five points more than Katherine Warington School, nearest first. A school with the same kind of pupils and a higher score is the fairest sign that it gets more out of them.
| School | Type | Distance | Pupils | Ofsted | Score | |
|---|---|---|---|---|---|---|
| Robert Bloomfield Academy | Academy | 14.7 miles | 962 | No overall grade 2025 | 93 | Compare |
How the score was worked out
The score is out of 100. A 68 means that once everything below is added up, this school comes out ahead of 68% of secondary schools in England. Results bounce around from year to year, especially in small schools, so we also show a likely range: 58 to 76. Every part is judged against schools with a similar mix of pupils. For small schools we pull each part towards the group average, so one unusual year can't swing the score too far.
| What we looked at | How much it counts | Against schools like it | Effect on the score | Based on |
|---|---|---|---|---|
| Results over three years | 20% | above | +0.14 | 2025 and 2024 results; 173 pupils |
| Ofsted inspection | 20% | in line | +0.02 | Ofsted grade, 2.5 years old |
| Progress pupils make | 20% | above | +0.18 | DfE progress measure; 173 pupils |
| Direction of travel over five years | 10% | well below | -0.23 | results and attendance falling year on year |
| Attendance and behaviour | 10% | above | +0.06 | 2024/25; 946 pupils |
| Results, allowing for the mix of pupils | 10% | above | +0.10 | Attainment relative to schools with a similar intake; 173 pupils |
| What pupils do next | 0% | no data | – | |
| What parents say | 0% | no data | – |
Worked out on 13 September 2026 (method v1). Read how the score works, including every weight and the checks we run. Think a number is wrong? Tell us.
Questions parents ask
Is Katherine Warington School a good school?
Yes, going by the figures. Katherine Warington School scores 68 out of 100. That is above schools that take in a similar mix of pupils, and ahead of 53% of the 50 schools most like it in England. The score could fairly be anywhere from 58 to 76, so a few points either way between schools doesn't mean much. Its results have been slipping over the last five years.
What is Katherine Warington School's Ofsted rating?
Ofsted rated Katherine Warington School good at its last full inspection on 28 February 2024.
How good are Katherine Warington School's GCSE results?
In summer 2025, 60% of pupils got a grade 5 or better in both English and maths. Across England it was 46%. Its Attainment 8 score, which is the average grade across a pupil's best eight subjects times ten, was 54.8, against 46.8 for England. In each subject, pupils here finished about half a grade ahead of children across England who started secondary school at the same level.
How many pupils does Katherine Warington School have?
1,113 pupils aged 11 to 19 were on the roll in January 2026.
Is Katherine Warington School oversubscribed, and how far away can you live?
Yes. For September 2026 the last place went to a child living 1.5 miles away. Children in care, brothers and sisters of current pupils and other priority groups come before distance, so the cut-off moves every year.
What is attendance like at Katherine Warington School?
Pupils were in school 92.5% of the time in 2024/25. Similar schools in England managed 91.4%. 16% of pupils missed at least a tenth of the year.
How big are the classes at Katherine Warington School?
The average class had 20.6 pupils in January 2026. Across England it was 22.8. 12% of classes had more than 30 pupils.
Does Katherine Warington School have a sixth form?
Yes.
These answers come straight from the figures on this page and update when new data comes out.
Contact and details
- Address
- Lower Luton Road, Harpenden, AL5 5FH
- Telephone
- 01582 314777
- Website
- www.kwschool.co.uk
- Headteacher
- Mr David Martin
- Type of school
- Free school (Free schools, free schools)
- Phase
- Secondary school, ages 11-19, with sixth form
- Gender
- Mixed
- Single-academy trust
- Harpenden Secondary Education Trust (1 schools)
- Local authority
- Hertfordshire
- Ward
- Harpenden East
- Constituency
- Harpenden and Berkhamsted
- Setting
- Urban: Nearer to a major town or city
- Opened
- 2 September 2019
- URN
- 145890 · LAESTAB 9194030 · UKPRN 10083779
Recent changes
- New KS4 results for 2024/25
Where these figures come from
- School details: Department for Education, Get Information About Schools, refreshed daily (this page rebuilt 13 September 2026).
- Inspections: Ofsted management information, monthly; latest publication in our data 27 August 2026.
- GCSE results: DfE key stage 4 performance tables, 2024/25 final.
- Attendance: DfE pupil absence in schools in England, 2024/25 full year.
- Pupil characteristics: DfE school census, January 2026.
- Staff: DfE school workforce census, November 2025.
- Class sizes: DfE schools, pupils and their characteristics, January 2026.
- Pupil premium: DfE allocations and conditions of grant, 2026 to 2027.
- Money: DfE financial benchmarking and insights tool, academy accounts return 2024/25.
- Admissions outcomes: Hertfordshire council's published allocation statistics (source), entry years 2022, 2023, 2024, 2025, 2026.
- House prices: HM Land Registry price paid data, December 2023 to December 2025, placed by postcode.
- Neighbourhood: police.uk street-level crime, HM Land Registry price paid data, NaPTAN bus stops, English Indices of Deprivation 2025.
- All under the Open Government Licence v3.0. Full list and update calendar.