| Level of risk | Percentage annual likelihood of flooding | Total number of properties in areas at risk flooding from rivers and the sea | Number of residential properties in areas at risk of flooding from rivers and the sea | Total number of properties in areas at risk of flooding from surface water | Number of residential properties in areas at risk of flooding from surface water |
| High | Greater than 3.3 | 198,000 | 120,000 | 326,000 | 241,000 |
| Medium | 1 to 3.3 | 654,000 | 444,000 | 499,000 | 391,000 |
| Low | 0.1 to 0.99 | 1,012,000 | 773,000 | 2,348,000 | 1,874,000 |
| Very low | Less than 0.1 | 626,000 | 522,000 | not assessed | not assessed |
| Total | not applicable | 2,490,000 | 1,859,000 | 3,173,000 | 250,600 |