Author: School Catchment Homes | 4 mins | August 16th 2025
When parents look at secondary school league tables, they often assume that rankings reflect purely academic performance. In reality, school catchment areas play a major role in shaping those results. The students who live within a school's boundaries form the intake - and this can have a direct impact on average exam scores, Ofsted ratings, and overall position in the tables.
League tables can be a useful starting point when comparing schools, but they should never be viewed in isolation. Understanding the link between catchment areas and performance data helps parents make better-informed decisions about both education and where to live.
A catchment area defines which families have priority for a school place. In many cases, these areas are based on distance from the school, but they may also reflect parish boundaries or feeder primary schools. The demographic, socio-economic, and academic profile of families living within that area can have a strong influence on the school's results.
For example, if a catchment includes a high proportion of households with access to tutoring, stable housing, and engaged parents, the school's exam performance may trend above average. Conversely, a catchment drawing from a wide mix of backgrounds may see more varied results - which isn’t a reflection on teaching quality but on intake diversity.
Ofsted ratings - from Outstanding to Inadequate - consider teaching quality, leadership, safeguarding, and pupil outcomes. While these ratings aim to reflect what happens inside the school, catchment areas can indirectly influence outcomes. Schools in more affluent or academically engaged catchments may find it easier to maintain higher performance metrics, leading to stronger Ofsted ratings.
This doesn’t mean schools outside high-performing catchments can’t achieve excellent results. Many do. However, understanding that catchment demographics can affect pupil progress measures gives parents a more realistic view of what league tables represent.
It’s common for top-ranked schools to have smaller catchment areas. Strong results and high Ofsted ratings create demand, which means available places are quickly filled by families living closest to the school. Over time, this can shrink the effective catchment to just a few streets.
This effect is particularly pronounced in urban areas, where housing near desirable schools commands a price premium. In these cases, league table position not only affects catchment size but also the housing market in surrounding streets.
League tables can be misleading if used without context. A high position might reflect selective admissions or socio-economic advantage rather than exceptional teaching. Likewise, a school lower in the rankings may have strong pastoral care, extracurricular opportunities, or specialist programmes that aren’t reflected in raw exam results.
Parents should use league tables alongside catchment maps, Ofsted reports, and a visit to the school. This ensures decisions are based on a full picture rather than just headline figures.
Most catchment boundaries aren’t measured “as the crow flies” but by walking distance or road routes, depending on the local authority’s policy. This means two homes the same straight-line distance from a school may fall into different catchments if one has a safer, shorter walking route.
Yes. Catchment boundaries are reviewed by local authorities and can change from year to year. Factors such as new housing developments, changes in pupil numbers, and adjustments to school capacity can lead to redrawn boundaries - which in turn may shift a school’s league table position over time.
When researching secondary schools, it’s best to start by identifying your actual catchment area using the local authority’s official maps. Once you know which schools you’re most likely to get into, compare their league table positions and Ofsted ratings. This approach avoids disappointment from aiming for a high-ranking school that’s realistically out of reach due to its catchment limits.
Parents can also track multi-year performance trends rather than relying on a single year’s table. If a school’s ranking is steadily improving, it may be a good long-term choice - even if it’s not currently in the top tier.
It’s possible, but places are usually only offered if the school has spare capacity after admitting in-catchment applicants.
Catchments vary greatly - from a few streets in dense urban areas to several miles in rural locations. Check your local authority’s official map for accuracy.
You can find this by entering your postcode into your council’s online school admissions checker or by contacting their admissions team.
“Best” depends on your priorities. Look at league table performance, Ofsted ratings, facilities, and the school’s ethos before deciding.
Enter your postcode to search local school catchment areas