Golspie High School
2,215 km²official catchment, 264 pupils
The biggest official catchment I could find runs from the east coast of Sutherland deep into the empty interior. That is roughly 8.4 km² of land for every pupil on the roll.
How much of the UK does one school serve? Every open state school, the official catchments that councils publish, and the nearest school everywhere else.
Ask a parent in Hackney and a parent in Sutherland how far it is to school and you will get very different answers. In a city a primary school might serve a few hundred metres of streets. In the far north of Scotland a single high school can be responsible for a stretch of moor, mountain and coast bigger than some English counties. I wanted to see that difference on one map: every school in the UK, and the patch of land each one serves.
That turned out to be harder than it sounds, because there is no UK map of school catchments. Scotland's councils draw a catchment for almost every school and many publish them, but England, Wales and Northern Ireland have no national set: English admissions mostly work on distance and oversubscription rules, and only some councils publish the areas they use. So this map does two things. Where a council publishes official catchments openly, I show them, 2,992 areas from 33 councils. Everywhere else I draw nearest-school zones: the land that is closer, as the crow flies, to one school than to any other. These are a geometric yardstick, not catchments, and the map marks them differently.
Solid colours with dark edges are official catchments published by councils. Lighter colours with pale dashed edges are nearest-school zones, drawn wherever no official catchment is published. Colour shows the area each school serves (or, if you switch, the size of the school). Choose primary or secondary, click anywhere to see which school is nearest and whose catchment you are in, or search for a place or postcode. Zoom in to see the schools themselves.
Schools: Get Information About Schools (England), Welsh Government, Scottish Government and Department of Education Northern Ireland, 2025 to 2026, all under the Open Government Licence. Official catchments: the councils listed in section 06. Zones: my calculation. Council borders: ONS. Hill shading: AWS Terrain Tiles. Base map tiles © Esri when they load.
Of the official catchments I could gather, the biggest are all in the Highlands and Islands. Golspie High School's catchment covers 2,215 km² of land, for a school of 264 pupils; Lochaber High School serves 2,048 km² and Ullapool High School 2,031 km². For scale, the whole of Herefordshire is about 2,180 km². The biggest primary catchment, Ullapool Primary School, covers 986 km². England's biggest official catchment in this set is Haydon Bridge High School in Northumberland, at 1,663 km².
Where there is no published catchment, the nearest-school zones tell the same story. The biggest primary zone in the UK belongs to Tongue Primary School (841 km², 27 pupils), and the biggest secondary zone to Ullapool High School (2,390 km²). In England the biggest primary zone is Kielder Primary School and Nursery's, 298 km² of Northumberland forest and fell for 10 pupils; in Wales, Ysgol Dolafon in Powys (345 km²); in Northern Ireland, St Caireall's Primary School, Castlederg (145 km²).
Area and size run in opposite directions. The schools with the most land usually have the fewest pupils: half of Scotland's primaries have 176 pupils or fewer, against 225 in England, and 176 Scottish primaries have fewer than 25. At the other end, the biggest state secondary in the UK is Brampton Manor Academy in Newham with 2,987 pupils, and the biggest primary is Claycots School in Slough with 1,605. The biggest in the other nations: Holyrood Secondary School (2,269) in Scotland, Whitchurch High School (2,459) in Wales and Bangor Academy & Sixth Form College (1,867) in Northern Ireland.
I measured the straight-line distance from every village and hamlet in Great Britain's OS Open Names gazetteer, 28,055 places, to the nearest state primary and secondary school. In England half of them are within 1.6 km of a primary; in Scotland the median is 2.2 km, but 17% of Scottish villages and hamlets (576 places) are more than 5 km from one, against 2% in England and 7% in Wales. For secondary school the gap widens: 34% of Scottish villages and hamlets are more than 10 km from one.
The most remote places are islands (3% of the villages and hamlets are off the mainland), where a straight line to the nearest school crosses the sea and the real journey involves a ferry or a stay in a hostel during the week. On this measure the furthest from a secondary school is Da Hametoon in Shetland Islands (42.2 km), and on the mainland Braemar in Aberdeenshire (37.5 km). Measured over land rather than settlements, 23% of Scotland is more than 10 km from a primary school; in England it is 0.4%.
Where a council publishes catchments, I can test the yardstick. For every official catchment linked to its school, I laid a fine grid of points over it and asked: is this catchment's school also the nearest school of its kind? Weighted by area, the answer is yes for 66% of catchment land (66% for primary, 66% for secondary). So the nearest-school zones on the map are a fair first guess, but a third of the time the official answer is a different school, because catchments follow roads, rivers, parishes, history and the size of buildings rather than straight lines. In 22% of catchments, less than half of the land is nearest to the catchment's own school.
Catholic catchments in Scotland are much bigger, because there are fewer Catholic schools: they agree with the nearest Catholic school for 74% of their land. Switch on "Catholic catchments instead" on the map to see them.
I found official catchments published as open map services by 21 of Scotland's 32 councils, 11 English councils and 1 Welsh council. Scotland's councils also share a national catchment layer through the Improvement Service's Spatial Hub, but downloading it requires accepting the Hub's terms in a web form, so I used each council's own open service instead and left the rest as nearest-school zones. Northern Ireland has no catchments at all: admission is by each school's criteria. Many English councils have no catchments either, or publish them only as PDFs or postcode lookups.
The biggest official catchment I could find runs from the east coast of Sutherland deep into the empty interior. That is roughly 8.4 km² of land for every pupil on the roll.
Kielder's school sits in England's biggest forest, beside Kielder Water and close to the Scottish border. No other English primary is nearest to so much land.
In east London, where schools are close together, nearest-school zones shrink to a few streets: the median primary zone in England is 2.4 km², and in inner London far less.
On Shetland's outer islands and the small isles of the west, a straight line badly understates the journey. Many island pupils board in a school hostel during the week for secondary school.
Northern Ireland has 775 primaries and 189 post-primary schools but no catchments. Its nearest-school zones mix grammar and non-grammar, Catholic, controlled and integrated schools, so they are an especially loose guide there.
Derived data, text and figures: CC BY 4.0. Code: MIT. Data and code on GitHub. Paper and archived release: https://doi.org/10.5281/zenodo.23748248.