This video goes through how to visualise and analyse population data using Office for National Statistics Census Map. Now you can see on the left hand side there's a menu where it talks about the different census maps. So this one here looks at the different types of maps. We're gonna stick with the census 2021, and we can also see that you can change the area here. So you can type an area into here and search. We're gonna look at England and Wales at the moment, but you can type in different areas in there. And there are also different topics that you can look at. So the variety of different topics here that you can click on and look at. So we're gonna start by looking at this population topic. So we're gonna click here on population and then that brings up all these different layers that we can click on. So can you see here on the left hand side, we've got age, age of arrival in the UK, country of birth. And if we keep looking down, we can see all these different layers that we can click on. So we can click on one of those different layers and it'll add it onto the map. So you can see here where it says select a topic to visualise. That means we're gonna click on one of those layers and we're gonna be able to visualise it. We're gonna be able to see this different information appear on this map. Now the reason we've got all of these different topics is because these were all different questions on the census. So as people have filled in that census, as they've answered those questions, then that information's all been collated here. So we've got information about everybody on all these different topics so we can find out data for the whole country by clicking on one of these topics. It's got the answer from the census all pulled together and we can look at that information for the whole country. I'm going to scroll down and have a look at all of these different topics. Now you can scroll down using the scroll wheel of the mouse or you can click on this bar here and move it up and down. I'm gonna go down until we find population density. Can you see that there? Population density. And I'm gonna click on that and look what happens to the map. So when I click on that, we now have a population density map for England and Wales. And can you see all of these different colours relate to this scale along the bottom. So we can see the population density for the whole of England and Wales. And if I zoom out, you can see it a little bit clearly and we can move the map up and down so that we can look at the different areas. Now you can see that the darker the colour, the more densely populated the area is, the lighter the colour, the more sparsely populated the area is. So unsurprisingly, we've got these big cities. Look here we've got London, which has got that darker colour that's more densely populated. Those cities are more densely populated than the other areas. And we can zoom in and see that information in a little bit more detail if we want to. And then if you hover over these different areas, it tells us the actual population density for those different areas on the key at the bottom. So if you hover over a particular area, you can see here that the population density of West Northamptonshire is 309 persons per square kilometre. Yeah, if we hover over another one here, the population density of Hackney there in London is 13,593 persons per square kilometre. So you can actually see all of this information and all of that specific detail. You can scroll up and down and you can zoom in and out to see places in a little bit more detail. And there's so much more that we can do as well. There's so much more information that we can find out about the population. So if we look back here on the left hand side, if I click back here on population, then I can look at some other information. So now I'm gonna scroll down and I'm gonna go to median age where it says median age and click on that. And now I've got some information about the median age for all of those different areas. And can you see the darker colours, that shows an older median age. And the lighter colours show a younger median age. And can you see these cities, these big cities, London, Birmingham, that had a high population density, they've actually got the younger people living there. They've got a younger median age. So we can click, look at this one here, the median age for people in Dorset, that's 51 years and that's quite high. That's a darker colour. Let's have a look at a lighter one. If we pick this one here. The median age for people in Cambridge is 31 years and that's one of the lighter colours. So that's quite a young median age. So we can see that the darker areas tend to be rural areas away from the cities, but there's also a pattern of where all the other darker areas are. Can you see, a lot of darker areas along the coastline. So the coastline tends to have the more elderly populations. You can see all of these different areas here along the coastline that have an older population. So we can this map to analyse all of this different information and then we can use our geographical understanding to think about why that might be the case, why we might get younger populations in the cities and why we might get older populations around the coastline. So there's lots and lots of different things we can do with these maps, so far we've been looking at England and Wales on quite a big scale, but we can actually change the area and look in a little bit more detail in in a localised area. So if you have a look at this menu on the left hand side, the place here where it says Area England and Wales, if we click on this arrow, this brings open this option for us to type in this box and you could type in a particular area to see it in a little bit more detail. So I'm going to type in York and look, zooms in there on the whole area of York. And you're able to see actually the differences in median age across York. You can see in a little bit more detail the different ages and how they are across the whole of York. Now we can also go back to this menu here on the left hand side and click back again on population. And we could scroll down and go back to population density. And now we can see the population density of York. So this is a really, really useful tool. Really, really clever for us to be able to analyse lots and lots of bits of data for the whole of England and Wales, but also for specific areas. You can really zoom in on particular areas and drill down and see that information. And there's lots and lots of different things that you can see information for. Now, you'll notice that we've only been looking here at England and Wales, but census maps do also exist for Scotland and Northern Ireland if they are your areas, you'll be able to look at those. So census maps also exist for Scotland and you can have a look at all of that information as well. Again, and census maps also exist for Northern Ireland. So you can see here this area, again, you can look and you can analyse lots of different population for your local area. So hopefully this has given you a really good introduction and some information about how we can use GIS to really analyse population.