1220 postboxes in the CH postcode area
| CH1 (82) | CH2 (68) | CH3 (93) | CH4 (67) | CH5 (68) | CH6 (29) | CH7 (129) | CH8 (76) | CH41 (46) |
| CH42 (37) | CH43 (54) | CH44 (40) | CH45 (42) | CH46 (31) | CH47 (30) | CH48 (31) | CH49 (41) | CH60 (28) |
| CH61 (27) | CH62 (45) | CH63 (36) | CH64 (38) | CH65 (38) | CH66 (44) |
Map boundaries are based on data from freethepostcode.org and npemap.org.uk.
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