| Reference |
post code |
location 1 |
location 2 |
| HA1 5 | HA1 1AA | COLLEGE ROAD | |
| HA1 6 | HA1 1AA | COLLEGE ROAD | |
| HA1 100 | HA1 1AA | HARROW POST OFFICE | COLLEGE ROAD |
| HA1 4 | HA1 1JU | ST ANNES ROAD | HAVELOCK PLACE |
| HA1 63 | HA1 1JZ | WELLDON CRESCENT | THE WELLDON CENTRE |
| HA1 32 | HA1 1PG | HEADSTONE ROAD POST OFFICE | 119 HEADSTONE ROAD |
| HA1 20 | HA1 1QF | 15 SPRINGFIELD ROAD | |
| HA1 17 | HA1 1QG | HARROW DELIVERY OFFICE | ELMGROVE ROAD |
| HA1 3 | HA1 1SD | BETHCAR ROAD | OPPOSITEOSITE LOWICK ROAD |
| HA1 68 | HA1 1SU | HAMILTON ROAD | WARRINGTON ROAD |
| HA1 386 | HA1 1TY | MARLBOROUGH HILL | RUSLAND PARK AVENUE |
| HA1 186 | HA1 1XW | DUKES AVENUE | DUKE HILL |
| HA1 7 | HA1 1YB | BARONS MEAD | |
| HA1 23 | HA1 2HA | GAYTON ROAD | OPPOSITEOSITE ST JOHNS ROAD |
| HA1 157 | HA1 2HX | BONNERSFIELD LANE | COURTFIELD AVENUE |
| HA1 259 | HA1 2ND | GERARD ROAD | ELMWOOD AVENUE |
| HA1 67 | HA1 2NT | NORTHWICK PARK ROAD | NORTHWICK PARK HOTEL |
| HA1 171 | HA1 2PH | CROFTS ROAD | OPPOSITEOSITE HILL ROAD |
| HA1 243 | HA1 2TU | TESCO | STATION ROAD |
| HA1 31 | HA1 2UA | STATION ROAD POST OFFICE | 31 STATION ROAD |
| HA1 21 | HA1 3AA | 23 GROVE HILL ROAD | |
| HA1 8 | HA1 3AW | LOWLANDS ROAD | LANSDOWNE ROAD |
| HA1 1 | HA1 3DB | BESSBOROUGH | LASCELLES AVENUE |
| HA1 134 | HA1 3DY | PETERSBOROUGH ROAD | IN WALL |
| HA1 9 | HA1 3EW | VICTORIA TERRACE | WEST STREET |
| HA1 2 | HA1 3HL | HIGH STREET | OPPOSITEOSITE CHURCH HILL |
| HA1 25 | HA1 3JP | MOUNT PARK ROAD | OPPOSITEOSITE CARLYON HOUSE |
| HA1 80 | HA1 3LW | THE HILL POST OFFICE | 82 HIGH STREET |
| HA1 38 | HA1 3NZ | SOUTH HILL AVENUE | SOUTH HILL AVENUE |
| HA1 58 | HA1 3QW | SUDBURY HILL POST OFFICE | 137-139 GREENFORD ROAD |
| HA1 11 | HA1 3RS | SUDBURY HILL | JUNCTION WITH HERGA COURT |
| HA1 241 | HA1 3SF | BENGEWORTH ROAD | SUDBURY COURT ROAD |
| HA1 203 | HA1 3SX | LITTLETON CRESCENT | BY THE GREEN |
| HA1 497 | HA1 3TD | SUDBURY COURT DRIVE | ON SLIP ROAD |
| HA1 354 | HA1 3UA | WATFORD ROAD | PEBWORTH ROAD |
| HA1 10 | HA1 3UL | NORTHWICK PARK HOSPITAL | HOSPITAL RING ROAD |
| HA1 173 | HA1 4AQ | DRURY ROAD | WHITMORE ROAD |
| HA1 53 | HA1 4DB | BOWEN ROAD | MERIVALE ROAD |
| HA1 13 | HA1 4EB | VAUGHAN ROAD | BOUVERIE ROAD |
| HA1 19 | HA1 4HZ | PINNER ROAD | NEAR THE CEMETERY |
| HA1 73 | HA1 4JP | PINNER ROAD POST OFFICE | 178 PINNER ROAD |
| HA1 46 | HA1 4JU | 226 PINNER ROAD | |
| HA1 147 | HA1 4PG | DURHAM ROAD | OPPOSITEOSITE SUSSEX ROAD |
| HA1 138 | HA1 4RA | ALTHORPE ROAD | JUNCTION WITH PINNER ROAD |
| HA1 301 | HA1 4RU | PINNERVIEW | PARKSIDE WAY |
| HA1 41 | HA1 4TE | HARROW VIEW | BUCKINGHAM ROAD |
| HA1 432 | HA1 4TL | HARROW VIEW | OPPOSITEOSITE HARLEY ROAD |
Map boundaries are based on data from