Maintained schools and pupils by local authority, Welsh medium type and year (up to 2023/24)

Standard shorthand is used in this table: [t] = total.

Data values	Data description	Year	Local Authority	Sector	Welsh Medium Type
22,239	Number of pupils	2003/04	Vale of Glamorgan	All schools	All schools
598	Number of pupils	2003/04	Merthyr Tydfil	All schools	Primary: Welsh is sole or main medium of instruction (to 2007/08)
358	Number of pupils	2003/04	Bridgend	All schools	Not applicable (Nursery & Special)
348	Number of pupils	2003/04	Vale of Glamorgan	All schools	Not applicable (Nursery & Special)
15,419	Number of pupils	2003/04	Rhondda Cynon Taf	All schools	Secondary: English medium school (to 2008/09)
42,303	Number of pupils	2003/04	Rhondda Cynon Taf	All schools	All schools
125	Number of pupils	2003/04	Neath Port Talbot	All schools	Not applicable (Nursery & Special)
9,983	Number of pupils	2003/04	Bridgend	All schools	Secondary: English medium school (to 2008/09)
1,231	Number of pupils	2003/04	Vale of Glamorgan	All schools	Primary: Welsh is sole or main medium of instruction (to 2007/08)
9,043	Number of pupils	2003/04	Vale of Glamorgan	All schools	Secondary: English medium school (to 2008/09)
4,121	Number of pupils	2003/04	Rhondda Cynon Taf	All schools	Primary: Welsh is sole or main medium of instruction (to 2007/08)
3,803	Number of pupils	2003/04	Rhondda Cynon Taf	All schools	Secondary: Welsh medium school (to 2008/09)
378	Number of pupils	2003/04	Rhondda Cynon Taf	All schools	Not applicable (Nursery & Special)
84	Number of pupils	2003/04	Isle of Anglesey	All schools	Not applicable (Nursery & Special)
75	Number of pupils	2003/04	Pembrokeshire	All schools	Not applicable (Nursery & Special)
8,299	Number of pupils	2003/04	Neath Port Talbot	All schools	Secondary: English medium school (to 2008/09)
1,032	Number of pupils	2003/04	Bridgend	All schools	Primary: Welsh is sole or main medium of instruction (to 2007/08)
11,388	Number of pupils	2003/04	Bridgend	All schools	Primary: Welsh is taught as a second language only (to 2007/08)
22,761	Number of pupils	2003/04	Bridgend	All schools	All schools
27,973	Number of pupils	2003/04	Carmarthenshire	All schools	All schools
11,084	Number of pupils	2003/04	Vale of Glamorgan	All schools	Primary: Welsh is taught as a second language only (to 2007/08)
533	Number of pupils	2003/04	Vale of Glamorgan	All schools	Secondary: Welsh medium school (to 2008/09)
2,152	Number of pupils	2003/04	Neath Port Talbot	All schools	Primary: Welsh is sole or main medium of instruction (to 2007/08)
1,173	Number of pupils	2003/04	Neath Port Talbot	All schools	Secondary: Welsh medium school (to 2008/09)
320	Number of pupils	2003/04	Rhondda Cynon Taf	All schools	Primary: Welsh is used in part of the curriculum (to 2007/08)
18,262	Number of pupils	2003/04	Rhondda Cynon Taf	All schools	Primary: Welsh is taught as a second language only (to 2007/08)
11,001	Number of pupils	2003/04	Neath Port Talbot	All schools	Primary: Welsh is taught as a second language only (to 2007/08)
6,837	Number of pupils	2003/04	Gwynedd	All schools	Secondary: Welsh medium school (to 2008/09)
1,214	Number of pupils	2003/04	Gwynedd	All schools	Secondary: English medium school (to 2008/09)
140	Number of pupils	2003/04	Gwynedd	All schools	Not applicable (Nursery & Special)
3,924	Number of pupils	2003/04	Ceredigion	All schools	Secondary: Welsh medium school (to 2008/09)
20,779	Number of pupils	2003/04	Powys	All schools	All schools
7,755	Number of pupils	2003/04	Pembrokeshire	All schools	Secondary: English medium school (to 2008/09)
1,021	Number of pupils	2003/04	Swansea	All schools	Secondary: Welsh medium school (to 2008/09)
22,750	Number of pupils	2003/04	Neath Port Talbot	All schools	All schools
8,297	Number of pupils	2003/04	Powys	All schools	Primary: Welsh is taught as a second language only (to 2007/08)
5,126	Number of pupils	2003/04	Powys	All schools	Secondary: English medium school (to 2008/09)
19,667	Number of pupils	2003/04	Pembrokeshire	All schools	All schools
5,805	Number of pupils	2003/04	Carmarthenshire	All schools	Primary: Welsh is taught as a second language only (to 2007/08)
18,923	Number of pupils	2003/04	Swansea	All schools	Primary: Welsh is taught as a second language only (to 2007/08)
5,490	Number of pupils	2003/04	Carmarthenshire	All schools	Secondary: Welsh medium school (to 2008/09)
197	Number of pupils	2003/04	Carmarthenshire	All schools	Not applicable (Nursery & Special)
2,000	Number of pupils	2003/04	Swansea	All schools	Primary: Welsh is sole or main medium of instruction (to 2007/08)
1,453	Number of pupils	2003/04	Conwy	All schools	Secondary: Welsh medium school (to 2008/09)
6,485	Number of pupils	2003/04	Conwy	All schools	Secondary: English medium school (to 2008/09)
187	Number of pupils	2003/04	Conwy	All schools	Not applicable (Nursery & Special)
156	Number of pupils	2003/04	Swansea	All schools	Not applicable (Nursery & Special)
10,590	Number of pupils	2003/04	Ceredigion	All schools	All schools
14,420	Number of pupils	2003/04	Swansea	All schools	Secondary: English medium school (to 2008/09)
1,174	Number of pupils	2003/04	Pembrokeshire	All schools	Primary: Welsh is used in part of the curriculum (to 2007/08)
9,828	Number of pupils	2003/04	Gwynedd	All schools	Primary: Welsh is sole or main medium of instruction (to 2007/08)
3,865	Number of pupils	2003/04	Isle of Anglesey	All schools	Secondary: Welsh medium school (to 2008/09)
423	Number of pupils	2003/04	Gwynedd	All schools	Primary: Welsh is used in part of the curriculum (to 2007/08)
36,520	Number of pupils	2003/04	Swansea	All schools	All schools
111	Number of pupils	2003/04	Gwynedd	All schools	Primary: Welsh is taught as a second language only (to 2007/08)
978	Number of pupils	2003/04	Isle of Anglesey	All schools	Secondary: English medium school (to 2008/09)
1,734	Number of pupils	2003/04	Denbighshire	All schools	Primary: Welsh is sole or main medium of instruction (to 2007/08)
453	Number of pupils	2003/04	Denbighshire	All schools	Primary: Welsh is used in part of the curriculum (to 2007/08)
6,544	Number of pupils	2003/04	Denbighshire	All schools	Primary: Welsh is taught as a second language only (to 2007/08)
2,016	Number of pupils	2003/04	Denbighshire	All schools	Secondary: Welsh medium school (to 2008/09)
5,783	Number of pupils	2003/04	Denbighshire	All schools	Secondary: English medium school (to 2008/09)
280	Number of pupils	2003/04	Denbighshire	All schools	Not applicable (Nursery & Special)
16,810	Number of pupils	2003/04	Denbighshire	All schools	All schools
18,553	Number of pupils	2003/04	Gwynedd	All schools	All schools
10,621	Number of pupils	2003/04	Isle of Anglesey	All schools	All schools
1,819	Number of pupils	2003/04	Powys	All schools	Primary: Welsh is used in part of the curriculum (to 2007/08)
7,990	Number of pupils	2003/04	Pembrokeshire	All schools	Primary: Welsh is taught as a second language only (to 2007/08)
1,168	Number of pupils	2003/04	Powys	All schools	Primary: Welsh is sole or main medium of instruction (to 2007/08)
874	Number of pupils	2003/04	Pembrokeshire	All schools	Secondary: Welsh medium school (to 2008/09)
7,118	Number of pupils	2003/04	Carmarthenshire	All schools	Primary: Welsh is sole or main medium of instruction (to 2007/08)
182	Number of pupils	2003/04	Powys	All schools	Not applicable (Nursery & Special)
868	Number of pupils	2003/04	Flintshire	All schools	Primary: Welsh is sole or main medium of instruction (to 2007/08)
13,572	Number of pupils	2003/04	Flintshire	All schools	Primary: Welsh is taught as a second language only (to 2007/08)
548	Number of pupils	2003/04	Flintshire	All schools	Secondary: Welsh medium school (to 2008/09)
10,258	Number of pupils	2003/04	Flintshire	All schools	Secondary: English medium school (to 2008/09)
259	Number of pupils	2003/04	Flintshire	All schools	Not applicable (Nursery & Special)
25,505	Number of pupils	2003/04	Flintshire	All schools	All schools
4,187	Number of pupils	2003/04	Powys	All schools	Secondary: Welsh medium school (to 2008/09)
4,167	Number of pupils	2003/04	Isle of Anglesey	All schools	Primary: Welsh is sole or main medium of instruction (to 2007/08)
832	Number of pupils	2003/04	Ceredigion	All schools	Primary: Welsh is used in part of the curriculum (to 2007/08)
2,307	Number of pupils	2003/04	Carmarthenshire	All schools	Primary: Welsh is used in part of the curriculum (to 2007/08)
902	Number of pupils	2003/04	Ceredigion	All schools	Primary: Welsh is taught as a second language only (to 2007/08)
2,312	Number of pupils	2003/04	Conwy	All schools	Primary: Welsh is sole or main medium of instruction (to 2007/08)
3,646	Number of pupils	2003/04	Ceredigion	All schools	Primary: Welsh is sole or main medium of instruction (to 2007/08)
349	Number of pupils	2003/04	Conwy	All schools	Primary: Welsh is used in part of the curriculum (to 2007/08)
7,056	Number of pupils	2003/04	Carmarthenshire	All schools	Secondary: English medium school (to 2008/09)
6,880	Number of pupils	2003/04	Conwy	All schools	Primary: Welsh is taught as a second language only (to 2007/08)
751	Number of pupils	2003/04	Isle of Anglesey	All schools	Primary: Welsh is used in part of the curriculum (to 2007/08)
1,104	Number of pupils	2003/04	Wrexham	All schools	Primary: Welsh is sole or main medium of instruction (to 2007/08)
112	Number of pupils	2003/04	Wrexham	All schools	Primary: Welsh is used in part of the curriculum (to 2007/08)
10,568	Number of pupils	2003/04	Wrexham	All schools	Primary: Welsh is taught as a second language only (to 2007/08)
757	Number of pupils	2003/04	Wrexham	All schools	Secondary: Welsh medium school (to 2008/09)
6,418	Number of pupils	2003/04	Wrexham	All schools	Secondary: English medium school (to 2008/09)
355	Number of pupils	2003/04	Wrexham	All schools	Not applicable (Nursery & Special)
19,314	Number of pupils	2003/04	Wrexham	All schools	All schools
17,666	Number of pupils	2003/04	Conwy	All schools	All schools
776	Number of pupils	2003/04	Isle of Anglesey	All schools	Primary: Welsh is taught as a second language only (to 2007/08)
1,286	Number of pupils	2003/04	Ceredigion	All schools	Secondary: English medium school (to 2008/09)
1,799	Number of pupils	2003/04	Pembrokeshire	All schools	Primary: Welsh is sole or main medium of instruction (to 2007/08)
5,030	Number of pupils	2003/04	Merthyr Tydfil	All schools	Primary: Welsh is taught as a second language only (to 2007/08)

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Main information

• Most recent update: 24 September 2025
• Next update expected: July 2026
• Designation: Official statistics
• Data provider: Welsh Government
• Data source: Pupil Level Annual School Census (PLASC)
• Time period covered: September 2003 to August 2024

Data notes

Overview

• Summary of dataset and variables:

  Data from the annual School Census which collects information on schools, pupils, classes, ethnicity, free school meal eligibility, additional learning needs and special educational needs.

• Data collection or calculation:

  The data in this report is collected by the Welsh Government from local authority maintained schools in a return called the Pupil Level Annual School Census (PLASC). PLASC is an electronic collection of pupil and school level data. Schools record data on pupils and the school throughout the year in their Management Information System (MIS) software. This data is collated into an electronic PLASC return and submitted to the Welsh Government through DEWI, a secure online data transfer system developed by the Welsh Government. Various stages of automated validation and sense-checking are built into the process to ensure a high quality of data to inform policy making and funding.

• Statistical quality:

  The returns are authorised by headteachers and validated by local authorities.

  The school census date is usually in January. Due to the level of coronavirus (COVID-19) cases in January 2022, the 2022 census date was delayed to 15 February 2022. School closures between December 2020 and March 2021 due to the coronavirus (COVID-19) pandemic meant that the 2021 census date was delayed to 20 April 2021.

  Pupils are eligible for free school meals if their parents or guardians are in receipt of certain means-tested benefits or support payments. The coronavirus (COVID-19) pandemic may have impacted on the quality of this data and may have resulted in over recording of this data in 2020 to 2022. These figures do not include pupils who only receive free school meals due to the universal primary free school meal policy.

• Related reports:
  • Schools' census results

Published by

• Organisation: Welsh Government
• Contact email: school.stats@gov.wales

Metadata

The metadata for this dataset is not included when you download the data. You can download this separately. This contains all the information from the 'About this dataset' tab.