School Catchment Areas Explained

"What’s the catchment area?" is one of the first questions parents ask about a school - and one of the most misunderstood. The honest answer for most English state schools is: there isn’t a fixed line on a map. This guide explains how places are actually allocated, why "the catchment" varies year by year, and how to use real distance data to estimate your chances.

What "catchment" really means

Strictly, a catchment area is the geographical area a school prioritises in its admissions policy. Some schools (notably faith schools and some grammars) define a priority area on a map. Most community and academy schools don’t - they simply use distance from home to school as a tie-breaker once all other priority groups have been satisfied.

In practice, when parents say "is my house in catchment?" they usually mean: "if I apply, am I likely to get a place?" That is a different question, and the answer depends on the school’s oversubscription criteria.

How places are actually allocated

When a school receives more applications than it has places, it ranks applicants using a published policy. A typical secondary school list looks like this:

1. Looked-after and previously looked-after children
2. Children with a strong medical or social need
3. Children with a sibling already at the school (sibling priority)
4. Children of staff (sometimes)
5. All remaining children, ranked by straight-line distance from home to school

Faith schools, grammars and banded comprehensives have different lists. Faith schools often place a religious-practice criterion above distance; grammars place an exam pass above almost everything; banded schools split the intake into ability bands first, then apply distance within each band.

What "last offer distance" means

When a local authority publishes admissions statistics, they usually report the furthest distance at which a place was offered in that year. This is the practical "edge" of the catchment for that cohort.

Here’s a real example from our database. Backwell School in North Somerset is a Good-rated secondary that allocates places primarily by distance:

Real example

Backwell School

Bristol, North Somerset

Backwell School - North Somerset secondary. The 2026 intake offered places up to 4.93 miles from home; in earlier years that figure has shifted by half a mile in either direction.

Ofsted rating

Good

View school

If you live inside that distance and you are not in a higher priority category (looked after, sibling, etc.), you have a strong chance of a place. If you live outside, your chances drop quickly.

Why catchment moves year to year

Three things change the cut-off:

1. Applicant numbers. A baby boom in your area pushes the boundary inward. A new housing estate further out pushes it out.
2. Sibling spaces. Schools with lots of large families fill more places via sibling priority, leaving fewer for distance applicants.
3. New schools nearby. A new academy opening up the road eases pressure on neighbouring schools.

How to estimate your chances

A practical approach for any state school you’re considering:

1. Open the school on FavSchools. We display the last 8 years of distance data where available.
2. Look at the trend: is the cut-off shrinking (school becoming more competitive) or growing?
3. Use the map to measure your home-to-school distance in a straight line. Note: most LAs use straight-line distance, not driving distance.
4. Compare with the school’s priority groups. If you have a sibling there, you almost certainly have a place. If you have no priority claim, the distance cut-off is what matters.

Try it on FavSchools

Measure home-to-school distance

Drop a pin on your home and click any school to see straight-line distance and recent offer cut-offs.

Open the map

Common myths

• "Buying a house in the catchment guarantees a place." False. It improves the odds, but priority groups (sibling, faith, medical) come first.
• "Catchment areas are legally fixed." False for most community schools - the cut-off is the result of that year’s applications.
• "You can only apply to schools in your catchment." False. You can apply to any state school in England; the question is whether you’ll be ranked high enough to get a place.

What about appeals?

If you don’t get a place, you have the right to a free independent appeal. Appeals succeed in roughly 1 in 5 cases for secondary admissions, but the success rate varies widely between local authorities. We’ll cover the appeals process in a future guide.

Where to next

• Read Choosing the Right Primary School for the wider checklist beyond catchment.
• Read Ofsted Inspections Explained for the quality side of the picture.

Try it on FavSchools

Compare schools side by side

Once you have two or three candidates, compare them on Ofsted, exam results and intake size in one view.

Open compare