This page provides postcode data for the Hertfordshire English ceremonial county. Hertfordshire contains approximately 453,814 households with a population of about 1,116,078 (2011 census)
| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? |
|---|---|---|---|---|---|---|
| WD7 9LP | 51.694313 | -0.285163 | 518621 | 200899 | TL186008 | Yes |
| WD7 9LQ | 51.693412 | -0.286254 | 518548 | 200797 | TL185007 | Yes |
| WD7 9LR | 51.695339 | -0.291361 | 518190 | 201003 | TL181010 | Yes |
| WD7 9LS | 51.682952 | -0.317216 | 516435 | 199584 | TQ164995 | No |
| WD7 9LT | 51.708636 | -0.299879 | 517567 | 202468 | TL175024 | Yes |
| WD7 9LU | 51.693776 | -0.2853 | 518613 | 200839 | TL186008 | Yes |
| WD7 9NE | 51.698088 | -0.288147 | 518405 | 201314 | TL184013 | Yes |
| WD7 9NR | 51.69397 | -0.286927 | 518500 | 200858 | TL184008 | No |
| WD7 9RB | 51.695216 | -0.287256 | 518474 | 200996 | TL184009 | No |
| WD7 9RH | 51.695732 | -0.293083 | 518070 | 201044 | TL180010 | Yes |
| WD7 9WA | 51.695732 | -0.293083 | 518070 | 201044 | TL180010 | No |
| WD7 9WB | 51.682952 | -0.317216 | 516435 | 199584 | TQ164995 | No |
| WD7 9WD | 51.682952 | -0.317216 | 516435 | 199584 | TQ164995 | No |
| WD7 9XN | 51.695732 | -0.293083 | 518070 | 201044 | TL180010 | No |
| WD7 9XZ | 51.682952 | -0.317216 | 516435 | 199584 | TQ164995 | No |
| WD7 9YN | 51.682952 | -0.317216 | 516435 | 199584 | TQ164995 | No |
| WD7 9ZD | 51.700063 | -0.308377 | 517002 | 201501 | TL170015 | No |
| WD7 9ZE | 51.682952 | -0.317216 | 516435 | 199584 | TQ164995 | No |
| WD7 9ZJ | 51.682952 | -0.317216 | 516435 | 199584 | TQ164995 | No |
| WD7 9ZL | 51.682952 | -0.317216 | 516435 | 199584 | TQ164995 | No |
| WD7 9ZN | 51.682952 | -0.317216 | 516435 | 199584 | TQ164995 | No |
| WD7 9ZP | 51.682952 | -0.317216 | 516435 | 199584 | TQ164995 | No |
| WD7 9ZQ | 51.682952 | -0.317216 | 516435 | 199584 | TQ164995 | No |
| WD7 9ZR | 51.682952 | -0.317216 | 516435 | 199584 | TQ164995 | No |
| WD7 9ZS | 51.682952 | -0.317216 | 516435 | 199584 | TQ164995 | No |
| WD7 9ZT | 51.682952 | -0.317216 | 516435 | 199584 | TQ164995 | No |
| WD7 9ZU | 51.69397 | -0.286927 | 518500 | 200858 | TL184008 | No |
| WD7 9ZW | 51.69397 | -0.286927 | 518500 | 200858 | TL184008 | No |
| WD7 9ZX | 51.69397 | -0.286927 | 518500 | 200858 | TL184008 | No |
| WD7 9ZY | 51.682952 | -0.317216 | 516435 | 199584 | TQ164995 | No |
| WD7 9ZZ | 51.682952 | -0.317216 | 516435 | 199584 | TQ164995 | No |
| WD99 1AA | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AB | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AD | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AE | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AF | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AG | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AH | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AJ | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AL | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AN | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AP | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AQ | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AR | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AS | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AU | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AW | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AX | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AY | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1AZ | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1BA | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1BB | 51.648781 | -0.422065 | 509269 | 195622 | TQ092956 | Yes |
| WD99 1BD | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |