Casterton, Sedbergh Preparatory School vs St Mary's CofE Primary School
A head-to-head comparison of two schools in North West, England, 2.2 km apart, using official English 2025 data. The better value in each row is highlighted.
Casterton, Sedbergh Preparatory School
Kirkby Lonsdale · Independent all-through · Ages 2–13
178 students
St Mary's CofE Primary School
Carnforth · Local authority primary · Ages 3–11
220 students
| Measure | Casterton, Sedbergh Preparatory School Kirkby Lonsdale, North West | St Mary's CofE Primary School Carnforth, North West |
|---|---|---|
| Success Index (England) | – Not rated | 68 Top 50% |
| Region rank | – | #520 of 2,286 |
| National rank | – | #4357 of 15,697 |
| Sector | Independent | Local authority |
| Type | All-through | Primary |
| Year range | Ages 2–13 | Ages 3–11 |
| Students | 178 | 220 |
| Pupils on roll | 178 | 220 |
| Free school meals | – | 4.5% |
| Capacity filled | 80.9% | 98.7% |
| KS2 expected standard (RWM) | – | 70% |
| KS2 higher standard (RWM) | – | 7% |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | – | – |
| Progress 8 | – | – |
| Grade 5+ English & maths | – | – |
| Grade 4+ English & maths | – | – |
| EBacc average points | – | – |
| A level points per entry | – | – |
| town | Kirkby Lonsdale | Carnforth |
| region | North West | North West |
| Website | www.sedberghprep.org | www.stmarys-kl.cumbria.sch.uk |
The verdict
- •St Mary's CofE Primary School is the larger school with 220 students compared with 178.
- •Casterton, Sedbergh Preparatory School is a independent school while St Mary's CofE Primary School is a local authority school, so fees and admission rules differ.
The Success Index (England) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
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Frequently asked questions
Is Casterton, Sedbergh Preparatory School better than St Mary's CofE Primary School?
The two schools are very close on the Success Index (England). Differences in sector, size, programmes and distance from home will matter more than the score.
How far apart are Casterton, Sedbergh Preparatory School and St Mary's CofE Primary School?
About 2.2 km in a straight line, between Kirkby Lonsdale and Carnforth in North West.
Which has the better Pupils on roll?
Casterton, Sedbergh Preparatory School: 178. St Mary's CofE Primary School: 220. Number of pupils in the latest school census.
How do Casterton, Sedbergh Preparatory School and St Mary's CofE Primary School rank in North West?
Casterton, Sedbergh Preparatory School is unranked and St Mary's CofE Primary School is 520th of 2,286 among all-through schools in North West on the 2025 Success Index (England).