NHS waiting lists: estimate of unique patients, March 2022 onwards

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Standard shorthand is used in this table: [b] = break in time series.

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Data valuesData descriptionDateLocal health board
575,994Estimate of unique patientsMarch 2023Wales
590,663Estimate of unique patientsSeptember 2022Wales
613,328Estimate of unique patientsJanuary 2025Wales
619,076Estimate of unique patientsNovember 2024Wales
619,168Estimate of unique patientsAugust 2024Wales
547,663Estimate of unique patientsMarch 2022Wales
586,269Estimate of unique patientsJuly 2023Wales
589,083Estimate of unique patientsOctober 2022Wales
585,061Estimate of unique patientsJuly 2022Wales
612,168Estimate of unique patientsJune 2025Wales
585,879Estimate of unique patientsAugust 2023Wales
581,551Estimate of unique patientsJune 2023Wales
586,002Estimate of unique patientsNovember 2022Wales
585,964Estimate of unique patientsNovember 2023Wales
618,171Estimate of unique patientsSeptember 2024Wales
611,129Estimate of unique patientsApril 2025Wales
577,357Estimate of unique patientsMay 2023Wales
614,150Estimate of unique patientsFebruary 2025Wales
575,541Estimate of unique patientsJune 2022Wales
7,316,795Estimate of unique patients2024Wales
583,836Estimate of unique patientsDecember 2023Wales
589,092Estimate of unique patientsOctober 2023Wales
577,433Estimate of unique patientsDecember 2022Wales
4,639,999Estimate of unique patients2022Wales
620,311Estimate of unique patientsOctober 2024Wales
613,357Estimate of unique patientsJuly 2025Wales
599,063Estimate of unique patientsMarch 2024Wales
577,882Estimate of unique patientsApril 2023Wales
4,287,018Estimate of unique patients2025Wales
586,450Estimate of unique patientsJanuary 2024Wales
602,853Estimate of unique patientsApril 2024Wales
615,341Estimate of unique patientsJune 2024Wales
608,559Estimate of unique patientsMarch 2025Wales
588,553Estimate of unique patientsAugust 2022Wales
614,327Estimate of unique patientsMay 2025Wales
573,917Estimate of unique patientsFebruary 2023Wales
611,508Estimate of unique patientsMay 2024Wales
586,799Estimate of unique patientsSeptember 2023Wales
616,669Estimate of unique patientsJuly 2024Wales
575,611Estimate of unique patientsJanuary 2023Wales
6,980,151Estimate of unique patients2023Wales
616,547Estimate of unique patientsDecember 2024Wales
591,638Estimate of unique patientsFebruary 2024Wales
134,475Estimate of unique patientsNovember 2023Betsi Cadwaladr
135,627Estimate of unique patientsAugust 2023Betsi Cadwaladr
139,404Estimate of unique patientsDecember 2022Betsi Cadwaladr
1,109,035Estimate of unique patients2022Betsi Cadwaladr
139,881Estimate of unique patientsMarch 2024Betsi Cadwaladr
151,330Estimate of unique patientsNovember 2024Betsi Cadwaladr
150,349Estimate of unique patientsOctober 2024Betsi Cadwaladr
140,645Estimate of unique patientsAugust 2022Betsi Cadwaladr
135,413Estimate of unique patientsJanuary 2024Betsi Cadwaladr
141,121Estimate of unique patientsNovember 2022Betsi Cadwaladr
150,005Estimate of unique patientsSeptember 2024Betsi Cadwaladr
136,994Estimate of unique patientsFebruary 2024Betsi Cadwaladr
135,254 [b]Estimate of unique patientsApril 2023Betsi Cadwaladr
127,344Estimate of unique patientsMarch 2022Betsi Cadwaladr
136,033Estimate of unique patientsJuly 2023Betsi Cadwaladr
148,336Estimate of unique patientsJuly 2024Betsi Cadwaladr
152,523Estimate of unique patientsJuly 2025Betsi Cadwaladr
139,354Estimate of unique patientsMarch 2023Betsi Cadwaladr
134,649Estimate of unique patientsMay 2023Betsi Cadwaladr
148,807Estimate of unique patientsAugust 2024Betsi Cadwaladr
151,920Estimate of unique patientsJune 2025Betsi Cadwaladr
151,697Estimate of unique patientsApril 2025Betsi Cadwaladr
141,183Estimate of unique patientsOctober 2022Betsi Cadwaladr
150,930Estimate of unique patientsMarch 2025Betsi Cadwaladr
135,930Estimate of unique patientsOctober 2023Betsi Cadwaladr
137,424Estimate of unique patientsJune 2022Betsi Cadwaladr
152,473Estimate of unique patientsMay 2025Betsi Cadwaladr
1,061,735Estimate of unique patients2025Betsi Cadwaladr
134,643Estimate of unique patientsDecember 2023Betsi Cadwaladr
140,472Estimate of unique patientsJuly 2022Betsi Cadwaladr
145,087Estimate of unique patientsMay 2024Betsi Cadwaladr
151,537Estimate of unique patientsDecember 2024Betsi Cadwaladr
140,283Estimate of unique patientsJanuary 2023Betsi Cadwaladr
135,564Estimate of unique patientsSeptember 2023Betsi Cadwaladr
1,636,148Estimate of unique patients2023Betsi Cadwaladr
151,157Estimate of unique patientsJanuary 2025Betsi Cadwaladr
151,035Estimate of unique patientsFebruary 2025Betsi Cadwaladr
141,442Estimate of unique patientsSeptember 2022Betsi Cadwaladr
138,324Estimate of unique patientsFebruary 2023Betsi Cadwaladr
136,012Estimate of unique patientsJune 2023Betsi Cadwaladr
146,717Estimate of unique patientsJune 2024Betsi Cadwaladr
142,144Estimate of unique patientsApril 2024Betsi Cadwaladr
1,746,600Estimate of unique patients2024Betsi Cadwaladr
6,694Estimate of unique patientsDecember 2022Powys
51,701Estimate of unique patients2022Powys
7,192Estimate of unique patientsNovember 2023Powys
6,474Estimate of unique patientsAugust 2022Powys
6,751Estimate of unique patientsFebruary 2024Powys
6,818Estimate of unique patientsSeptember 2024Powys
6,838Estimate of unique patientsNovember 2022Powys
7,122Estimate of unique patientsMarch 2024Powys
7,410Estimate of unique patientsApril 2023Powys
7,698Estimate of unique patientsAugust 2023Powys
6,672Estimate of unique patientsOctober 2024Powys
6,667Estimate of unique patientsNovember 2024Powys
8,131Estimate of unique patientsJuly 2023Powys
6,960Estimate of unique patientsJuly 2024Powys
Showing 1 to 100 of 344 rows
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Main information

Most recent update
26 September 2025
Next update expected
23 October 2025
Designation
Management information
Data provider
NHS Trusts and Local Health Boards
Data source
No specific source from data provider
Time period covered
January 2022 to December 2025

Data notes

Overview

Summary of dataset and variables

This table provides estimated numbers of individual patients on Referral to Treatment (RTT) waiting lists in Wales by local health board.

Data collection or calculation

Estimates are based on management information provided by Welsh Local Health Boards. Management information are not assessed against the Code of Practice for statistics. Though the principles of the Code of Practice have been applied, these data are not subject to the level of quality assurance applied to accredited official statistics.

Statistical quality

The methods used by the health boards to estimate numbers of individual patients on RTT waiting lists are different, reflecting the different underlying administrative systems in use. In some cases, health boards have confirmed that their methods enable all patients to be counted, and with no duplication, meaning the figures are expected to be very accurate. In other cases, it is known that some patients are not included in the count - for example because they are not recorded on the same systems as other patients - or that there is a possibility of some duplication. The most significant example of this is in Hywel Dda University health board, where it is not possible to include patients waiting for diagnostic services or therapies. These patients account for around 10% of the total RTT pathways provided by Hywel Dda. Other examples of over and under-coverage are expected to have a very small impact on the figures.

Betsi Cadwaladr University (BCU) local health board implemented an improved method for estimating unique patients which was applied to data from April 2023. This means figures for BCU before and after April 2023 are not directly comparable. The new method had the impact of reducing the estimates for BCU by around 4,000 compared with the previous method. This was around 3% of the BCU figure. The impact on Wales level figures was small, causing a reduction of less than 1% compared with the previous methodology.

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Published by

Organisation
Welsh Government
Contact email
stats.healthinfo@gov.wales

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