• Mae'r wefan hon ar gael yn y Gymraeg

Our data work

We play a central role in ensuring that data meets the needs of our ‘core’ audience by representing the views of local government in Wales around issues such as the Census, and population and migration data. We also hold a wealth of data available in maps, tables and reports in our national system InfoBaseCymru. To see the data we hold in InfoBaseCymru, use the menu on the right. You can also view some of our most popular data using the links below.


As well as the national data available in our InfoBaseCymru system, we support local government and its partners to collect other data. We can support your organisation with its data collection needs. We already work across local authority services to provide support for benchmarking activity. This work includes provision of collection forms, management of the collection activity and providing data in usable intelligent formats. We provide support across the majority of services operating in local authorities.


We can also provide support for collecting qualitative information through surveys and questionnaires. Again, the support we can provide varies based on the needs of the individual. We can help develop and test questions, as well as offering an online survey service which uses fully bilingual software. We can also provide analysis of the survey results.


Please get in touch to discuss how we can support your data needs.


Find information on the deprivation of your area, data on housing, crime and the make-up of your population.

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Find information on the health of children in your area, as well as data on how they are performing at school. You can also find data on what young people are doing after reaching the end of compulsory schooling.

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Find information on the size and types of businesses in your area, the level of earnings, and economic activity of the working age population. You can also find data for Job Seeker's Allowance and other types of benefit.

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Find information on the lifestyle of your population, those using medical services, and those suffering from medical conditions all taken from the Welsh Health survey. You can also find data on social care provision in your area, as well as the health of children from conception and other useful health information.

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Find information on the physical environment, CO2 emissions, traffic volumes, energy consumption and flood risk. You can also find data on the quality of the road network and road casualties.

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Find information from the 2011 Census on the make-up of the population, ranging from Welsh language skills, or how people travel to work to their marital status.

See the data

Local authorities across Wales are required to report on a number of Performance Indicators each year. There are two types of indicator – National Strategic Indicators (NSIs) which are set by Welsh Government, and Public Accountability Measures (PAMs) set by local government. The information shown here is a combination of both of these sets of indicators.

MyLocalCouncil is a tool designed to help members of the public understand how their local council is performing compared to other councils across Wales.

View MyLocalCouncil See the data

Some of our work...


InfobaseCymru provides easy access to a wide range of information for Wales.


MyLocalCouncil is a tool designed to bring performance data to the public.

Local systems

Local systems allow policy makers and citizens to access, analyse, map and download local and national data sets with relative ease.

Local Government Benchmarking Framework (Scotland)

Local Government Benchmarking Framework (Scotland) is a tool designed to bring performance data to the Scottish public.

Third sector funding

The analysis presented shows funding of the third sector including information on funding as grants and payments for services.

Free Swimming Wales

The analysis presented on Free Swimming Wales shows data on maps of Wales, trend graphs over time, added value reports (for Wales, Local Authority and Pool) and exportable data tables.


Data updates

31 March 2019 09:00:00

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Here you’ll find all of our InfoBase news including updates on the system and its content.

Job Seeker's Allowance claimant count (February 2019)

The latest (February 2019) Job Seeker’s Allowance claimant count is now available following a release by the Office for National Statistics.

Average house prices (January 2019)

The data for January 2019 for average house prices is now available following a release by the Land Registry.

Knowing the error associated with survey data

When estimates are produced from a survey there is always associated error. Most data producers publish these associated errors along with the estimates in the form of confidence limits. The confidence limits give the range of error. For example, an estimate of 48% may have confidence limits of 41% and 55%. This means the estimate could be anywhere between the lower limit (LL) and the upper limit (UL). This helps us understand how different two estimates may really be. If the confidence limits for one estimate overlap with the confidence limits of another estimate, then there may be no statistical difference between the two estimates.

We also think it is important to provide this type of information for survey data. We have produced some survey data maps to show some indicators around communities from National Survey for Wales data. These show you the confidence limits in addition to all the usual information we provide. We plan to include more survey data over time.

If you have any queries or comments regarding our presentation of survey data, please get in touch Infobasecymru@data.cymru.

Migration (2016-2017)

The 2016-2017 migration figures are now available following a release by the Welsh Government.

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