Britain collectively owes nearly Â£900 billion in mortgage debt, according to the latest figures to be released. The Council of Mortgage Lenders has revealed some fascinating statistics that highlight exactly where in the country the largest amounts of mortgage debt reside. These have been worked out down to the actual postcode areas, providing an interesting snapshot of mortgage debt and where it lies. London is by far the highest by region Region by region, London is unsurprisingly the biggest collective debtor of all. Some Â£227 billion of the Â£891 billion total is for properties in the city. This should not come as a surprise since the capital generally has the most expensive properties available for sale today. The South East comes in a predictable second place, accounting for Â£161 billion of the debt, not far from being a fifth of the total. The lowest amount of debt per region goes to the North East, with Â£25.9 billion in debt, while the second lowest is Wales with Â£28.5 billion in debt. Debt divided into postal codes The Council of Mortgage Lenders has also broken down the figures still further and provided detailed data for individual post code areas up and down the country. This has revealed a stark divide between the north and south of the country. This points out that more than 40% of the total debt lies in London and the South East. The most indebted post code in the entire country is that of Wandsworth in London. This area has a collective mortgage debt of more than Â£649 million. Areas in south west London pop up time and again on the list, popping up seven times in the top ten post code areas. They also appear another six times to round out the top twenty, filling up thirteen spots in total. Kingston upon Thames also features in the 16th, 18th and 20th most indebted post code spots on the list. Two E14 post code variations appear in the top ten, taking the second and tenth spots respectively. A W9 post code is in fourth place while a W4 post code appears in twelfth place. Experts seem to be reassured by the lack of surprises in the list of information. Certainly most people who read the list will see how many predictable results are in the top twenty post codes, all of which are in the London area. It seems the proportion of mortgage debt owed across the country falls into predictable pockets as well, with the aforementioned north-south divide being seen quite clearly in the results. This is the first time the Council of Mortgage Lenders has gone to so much detail when releasing the figures. However it has been an educational and fascinating look at where the mortgages are and where the highest valued properties are as well. If they do the same and release the figures again next year, we would expect to see very little difference when compared to these figures.