| Reference |
post code |
location 1 |
location 2 |
| DL1 1 | DL1 1AA | ROYAL MAIL HOUSE | ST CUTHBERTS WAY DARLINGTON |
| DL1 8 | DL1 1AB | CROWN STREET BRANCH OFFICE | DARLINGTON |
| DL1 254 | DL1 1BW | MCMULLEN ROAD | DARLINGTON |
| DL1 2 | DL1 1EB | EAST END | DARLINGTON |
| DL1 20 | DL1 1EP | YARM ROAD | DARLINGTON |
| DL1 281 | DL1 1JB | HUNDENS LANE | DARLINGTON |
| DL1 123 | DL1 1JZ | EASTMOUNT | DARLINGTON |
| DL1 138 | DL1 1QP | CHESTNUT STREET | DARLINGTON |
| DL1 5 | DL1 1RR | PARKGATE | DARLINGTON |
| DL1 7 | DL1 1UW | HIGH NORTHGATE | DARLINGTON |
| DL1 260 | DL1 1XL | LINGFIELD LANE | DARLINGTON |
| DL1 189 | DL1 2AE | LATIMER ROAD | DARLINGTON |
| DL1 285 | DL1 2AY | NIGHTINGALE AVENUE | DARLINGTON |
| DL1 117 | DL1 2DD | HAUGHTON LE SKERNE POST OFFICE | DARLINGTON |
| DL1 100 | DL1 2EQ | ALBERT ROAD POST OFFICE | DARLINGTON |
| DL1 36 | DL1 2LD | HAUGHTON ROAD | DARLINGTON |
| DL1 35 | DL1 2NE | KILLINGHALL STREET | DARLINGTON |
| DL1 224 | DL1 2NX | CLEVELAND STREET | DARLINGTON |
| DL1 324 | DL1 2PY | MORRISONS,NORTH ROAD | DARLINGTON |
| DL1 143 | DL1 2SR | COOMBE DRIVE | DARLINGTON |
| DL1 113 | DL1 2TH | EPSOM COURT | DARLINGTON |
| DL1 121 | DL1 2TN | LITTLEBECK DRIVE | DARLINGTON |
| DL1 3 | DL1 2YH | NORTHWOOD PARK | DARLINGTON |
| DL1 136 | DL1 3AQ | NORTH END POST OFFICE MAYFAIR ROAD | DARLINGTON |
| DL1 129 | DL1 3BA | SPRINGFIELD | DARLINGTON |
| DL1 251 | DL1 3DN | BENSHAM ROAD | DARLINGTON |
| DL1 320 | DL1 3HQ | BEECH ROAD | DARLINGTON |
| DL1 53 | DL1 3HS | BARMPTON LANE | DARLINGTON |
| DL1 286 | DL1 3JG | BARMPTON LANE | DARLINGTON |
| DL1 197 | DL1 3JJ | GREAT BURDON | DARLINGTON |
| DL1 62 | DL1 3LQ | BRAFFERTON | DARLINGTON |
| DL1 193 | DL1 3LU | COATHAM MUNDEVILLE | DARLINGTON |
| DL1 239 | DL1 3LZ | KETTON | DARLINGTON |
| DL1 102 | DL1 3NQ | BEAUMONT HILL | DARLINGTON |
| DL1 133 | DL1 3PT | WHINBUSH WAY | DARLINGTON |
| DL1 128 | DL1 3QR | FOTHERINGAY DRIVE | DARLINGTON |
| DL1 31 | DL1 4AT | NEASHAM ROAD | DARLINGTON |
| DL1 328 | DL1 4DT | DARLINGTON STATION | DARLINGTON |
| DL1 13 | DL1 4EP | EASTBOURNE ROAD | DARLINGTON |
| DL1 29 | DL1 4HG | GENEVA ROAD | DARLINGTON |
| DL1 59 | DL1 4JF | COBDEN STREET | DARLINGTON |
| DL1 296 | DL1 4JT | GENEVA DRIVE | DARLINGTON |
| DL1 259 | DL1 4NL | HARRIS STREET | DARLINGTON |
| DL1 172 | DL1 4PJ | MORRISONS, MORTON PARK | DARLINGTON |
| DL1 329 | DL1 4PZ | LINGFIELD WAY | DARLINGTON |
| DL1 298 | DL1 4QE | EDGEMOOR ROAD | DARLINGTON |
| DL1 282 | DL1 4SA | BURNSIDE ROAD | DARLINGTON |
| DL1 321 | DL1 4SQ | FIRTHMOOR P.O | DARLINGTON |
| DL1 151 | DL1 4UB | LASCELLES PARK | DARLINGTON |
| DL1 297 | DL1 5AJ | SKERNE PARK P.O | DARLINGTON |
| DL1 225 | DL1 5DX | CLIFTON ROAD | DARLINGTON |
| DL1 106 | DL1 5EH | PARK LANE | DARLINGTON |
| DL1 24 | DL1 5HW | BLACKWELLGATE | DARLINGTON |
| DL1 32 | DL1 5JH | VICTORIA ROAD | DARLINGTON |
| DL1 105 | DL1 5JR | VICTORIA EMBANKMENT | DARLINGTON |
| DL1 236 | DL1 5PG | SAFEWAY,VICTORIA ROAD | DARLINGTON |
| DL1 18 | DL1 5SJ | VICTORIA ROAD | DARLINGTON |
| DL1 253 | DL1 5TE | LAKESIDE | DARLINGTON |
Map boundaries are based on data from