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As the demand increases for statistics and data to measure the impact of the COVID-19 pandemic, we have had to change our data gathering and release practices, focussing efforts on priority analysis and statistics. https://gov.wales/statistics-and-research

Local health boards

Population estimates are calculated by combining birth and death registration data together with estimates of international migration and internal migration (within UK) flows to calculate estimates for the usually resident population of each area as at 30 June each year.