12 places
| Region | Clay | Soil pH | Solar irradiation | Elevation | Slope |
|---|---|---|---|---|---|
| County Durham | %23.0 | 6.1 | 984 | 63 | · |
| Darlington | %20.3 | 6.2 | 969 | 41 | · |
| Gateshead | · | · | 972 | 65 | · |
| Hartlepool | · | · | 1003 | 23 | · |
| Middlesbrough | · | · | 988 | 16 | · |
| Newcastle | %23.4 | 6.2 | 1003 | 58 | %5.8 |
| North Tyneside | %23.2 | 6.2 | 1010 | 80 | · |
| Northumberland | %22.0 | 6.0 | 1018 | 79 | · |
| Redcar and Cleveland | %21.4 | 6.3 | 995 | 79 | · |
| South Tyneside | %24.2 | 6.2 | 1003 | 22 | · |
| Stockton-on-tees | · | · | 985 | 12 | · |
| Sunderland | · | · | 993 | 72 | · |