| Reference |
post code |
location 1 |
location 2 |
| HP1 2 | HP1 | BANKCOURT | |
| HP1 35 | HP1 | KINGSMEAD ROAD | VOID |
| HP1 77 | HP1 | CEMMAES COURT ROAD | |
| HP1 78 | HP1 | GADBRIDGE ROAD | |
| HP1 79 | HP1 | MARLINS TURN | |
| HP1 81 | HP1 | HOWARDS DRIVE | |
| HP1 82 | HP1 | DAGGSDELL ROAD | |
| HP1 84 | HP1 | SPRING LANE | |
| HP1 86 | HP1 | HOLYBUSH LANE | |
| HP1 89 | HP1 | CHAULDEN LANE | |
| HP1 93 | HP1 | GRAVEL LANE | |
| HP1 95 | HP1 | BOXMOOR ROUNABOUT | |
| HP1 96 | HP1 | ST JOHNS ROAD | |
| HP1 97 | HP1 | HAMMERFIELD | |
| HP1 98 | HP1 | HANGER CLOSE | |
| HP1 99 | HP1 | COTTERELS | |
| HP1 100 | HP1 | BEECHFIELD ROAD | |
| HP1 101 | HP1 | HEATH PARK | |
| HP1 103 | HP1 | LONDON ROAD | |
| HP1 105 | HP1 | BOXMOOR POST OFFICE | |
| HP1 131 | HP1 | WATER END | |
| HP1 132 | HP1 | CHURCH MEADOW | |
| HP1 133 | HP1 | GREAT GADDESEN | |
| HP1 134 | HP1 | ST MARGARETS | |
| HP1 135 | HP1 | NETTLEDEN | |
| HP1 136 | HP1 | FRITHSDEN | |
| HP1 137 | HP1 | WATEREND MOOR | |
| HP1 143 | HP1 | PICCOTTS END | |
| HP1 144 | HP1 | BOURNE END LANE | |
| HP1 145 | HP1 | BOURNE END | |
| HP1 146 | HP1 | WINKWELL | |
| HP1 157 | HP1 | BETJEMAN WAY | |
| HP1 160 | HP1 | ASTLEY ROAD | |
| HP1 164 | HP1 | GADBRIDGE ROAD | |
| HP1 200 | HP1 1AA | HEMEL HEMPSTEAD MAIL CENTRE | PARK LANE |
| HP1 202 | HP1 1AA | PARK LANE | HEMEL HEMPSTEAD |
| HP1 207 | HP1 1BD | WHSMITHS | THE MARLOWES |
| HP1 208 | HP1 1BD | WHSMITH | THE MARLOWES |
| HP1 3 | HP1 1DQ | MARLOWES B O | |
| HP1 66 | HP1 1HF | TOWN HALL | |
| HP1 94 | HP1 1QW | GREEN END ROAD | |
| HP1 92 | HP1 2AR | NORTHBRIDGE WAY | |
| HP1 90 | HP1 2HX | CHAULDEN POST OFFICE | |
| HP1 91 | HP1 2JL | MIDDLE HILL | |
| HP1 83 | HP1 2QW | BOXTED ROAD | |
| HP1 142 | HP1 3 | GRIST HOUSE | |
| HP1 68 | HP1 3AA | HIGH STREET | |
| HP1 85 | HP1 3DN | WARNERS END POST OFFICE | |
| HP1 159 | HP1 3HH | FIELDS END | |
| HP1 67 | HP1 3HT | QUEENSWAY POST OFFICE | |
| HP1 80 | HP1 3LG | ROSSGATE POST OFFICE | |
| HP1 17 | HP1 3SD | CHERRY ORCHARD | |
Map boundaries are based on data from