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Ysgol Syr Thomas Jones

Pentrefelin, Amlwch, Ynys Mon, LL68 9TH

Local ranking5th of 5 secondary schools in Isle of Anglesey
Estyn: Not in follow-up

Secondary

Phase

Not published

Capacity

11-18

Age range

Not applicable

Gender

Latest data: 2025 GCSEs · Estyn inspection 15 January 2026. Figures last updated .

Year:

Key Stage 4 Results

2024-25

*Data not available for 2025-26 — showing latest available results

Capped 9 points score
335.5 Wales354.3·Isle337.7
Literacy points score
37.0 Wales38.6·Isle36.9
Numeracy points score
33.7 Wales36.0·Isle34.3
Science points score
35.2 Wales35.8·Isle36.0
Welsh Bacc Skills Challenge
38.3 Wales29.0·Isle36.0

Welsh Government interim KS4 measures, from My Local School. Points scores are averages across the cohort and are not comparable with England's Attainment 8.

Pupil Demographics

2025-26
Total Pupils
495
SEND
12.8%
FSM Eligible
16.9%
SEN Support
12.8%

Attendance & Absence

2024-25

*Data not available for 2025-26 — showing latest available results

Overall Absence Rate
11.6% Wales7.3%·Isle7.0%

Attendance from My Local School (Welsh Government). Wales does not publish per-school persistent absence.

School Information

Type
Welsh establishment
Phase
Secondary
Nursery
Not applicable
Sixth Form
Does not have a sixth form
Boarders
Not applicable

Pupil Ethnicity

2024-25
Loading chart
  • White British: 100.0%

100.0%

White British

Historical Trends

KS4 Performance

Pupil Demographics

Attendance & Absence

Contact & Location

01407830287

Pentrefelin

Ynys Mon, Wales (pseudo)

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Administrative

Country
Wales
URN
401665
UKPRN
10009311
Establishment No.
4025

Common questions about Ysgol Syr Thomas Jones

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