This page provides postcode data for the Welwyn Hatfield, unparished area parish. Welwyn Hatfield, unparished area contains approximately 19,553 households with a population of about 46,630 (2011 census)
| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? |
|---|---|---|---|---|---|---|
| AL6 0BS | 51.823136 | -0.205722 | 523759 | 215357 | TL237153 | Yes |
| AL6 0DP | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0EX | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0FA | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0FB | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0GY | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0HR | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0JA | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0JE | 51.803057 | -0.155187 | 527298 | 213211 | TL272132 | Yes |
| AL6 0ND | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0RT | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0WG | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | Yes |
| AL6 0WJ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0WQ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0WT | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0WU | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0WW | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0WY | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | Yes |
| AL6 0XA | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0XL | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0XU | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0XX | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0XY | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0XZ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0YJ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0YQ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0YX | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0YZ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0ZD | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0ZG | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0ZL | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0ZN | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0ZQ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0ZR | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0ZS | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0ZU | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | Yes |
| AL6 0ZW | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0ZY | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 0ZZ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9AG | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9AH | 51.81486 | -0.223867 | 522531 | 214406 | TL225144 | Yes |
| AL6 9AJ | 51.812656 | -0.226037 | 522387 | 214157 | TL223141 | Yes |
| AL6 9AL | 51.815332 | -0.220555 | 522758 | 214464 | TL227144 | Yes |
| AL6 9AN | 51.813594 | -0.223244 | 522577 | 214266 | TL225142 | No |
| AL6 9AZ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9FA | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9HH | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | Yes |
| AL6 9LJ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9NZ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9QG | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9TH | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9WJ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9WQ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9XJ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9XL | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9XQ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9XU | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9XW | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9XZ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9ZF | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9ZJ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9ZL | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9ZQ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9ZR | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9ZS | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9ZT | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9ZW | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL6 9ZX | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL7 1AA | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | Yes |
| AL7 1AB | 51.804489 | -0.195874 | 524489 | 213300 | TL244132 | Yes |
| AL7 1AD | 51.803222 | -0.191133 | 524819 | 213167 | TL248131 | Yes |
| AL7 1AE | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL7 1AF | 51.801748 | -0.192918 | 524700 | 213000 | TL247130 | No |
| AL7 1AG | 51.803567 | -0.194296 | 524600 | 213200 | TL245131 | No |
| AL7 1AH | 51.804845 | -0.193916 | 524623 | 213343 | TL246133 | Yes |
| AL7 1AJ | 51.804347 | -0.188303 | 525011 | 213297 | TL250132 | Yes |
| AL7 1AL | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL7 1AN | 51.804094 | -0.188913 | 524970 | 213268 | TL249132 | Yes |
| AL7 1AP | 51.801011 | -0.185928 | 525184 | 212930 | TL251129 | Yes |
| AL7 1AQ | 51.803567 | -0.194296 | 524600 | 213200 | TL245131 | No |
| AL7 1AR | 51.803523 | -0.191397 | 524800 | 213200 | TL247132 | No |
| AL7 1AS | 51.804635 | -0.194152 | 524607 | 213319 | TL246133 | No |
| AL7 1AT | 51.801947 | -0.187761 | 525055 | 213031 | TL250130 | No |
| AL7 1AU | 51.803116 | -0.192399 | 524732 | 213153 | TL247131 | Yes |
| AL7 1AW | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL7 1AX | 51.804104 | -0.190576 | 524855 | 213266 | TL248132 | Yes |
| AL7 1AY | 51.804286 | -0.192024 | 524755 | 213284 | TL247132 | Yes |
| AL7 1AZ | 51.804543 | -0.189354 | 524938 | 213317 | TL249133 | No |
| AL7 1BA | 51.804675 | -0.189131 | 524953 | 213332 | TL249133 | Yes |
| AL7 1BB | 51.809932 | -0.188326 | 524994 | 213918 | TL249139 | No |
| AL7 1BD | 51.803696 | -0.193914 | 524626 | 213215 | TL246132 | Yes |
| AL7 1BE | 51.803913 | -0.191642 | 524782 | 213243 | TL247132 | No |
| AL7 1BF | 51.809932 | -0.188326 | 524994 | 213918 | TL249139 | No |
| AL7 1BG | 51.798784 | -0.189672 | 524932 | 212676 | TL249126 | No |
| AL7 1BH | 51.801844 | -0.195834 | 524499 | 213006 | TL244130 | Yes |
| AL7 1BJ | 51.804563 | -0.190794 | 524839 | 213317 | TL248133 | Yes |
| AL7 1BL | 51.805871 | -0.197351 | 524383 | 213451 | TL243134 | No |
| AL7 1BN | 51.802669 | -0.194332 | 524600 | 213100 | TL245131 | No |
| AL7 1BP | 51.802663 | -0.193984 | 524624 | 213100 | TL246130 | No |
| AL7 1BQ | 51.801528 | -0.186941 | 525113 | 212986 | TL251129 | Yes |
| AL7 1BS | 51.800281 | -0.19463 | 524586 | 212834 | TL245128 | Yes |
| AL7 1BT | 51.809932 | -0.188326 | 524994 | 213918 | TL249139 | No |
| AL7 1BU | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL7 1BW | 51.802232 | -0.194122 | 524616 | 213052 | TL246130 | Yes |
| AL7 1BX | 51.816006 | -0.190404 | 524834 | 214590 | TL248145 | Yes |
| AL7 1BY | 51.815401 | -0.190317 | 524842 | 214523 | TL248145 | Yes |
| AL7 1BZ | 51.809494 | -0.188518 | 524982 | 213869 | TL249138 | No |
| AL7 1DA | 51.810797 | -0.192556 | 524700 | 214007 | TL247140 | Yes |
| AL7 1DB | 51.811485 | -0.19236 | 524712 | 214084 | TL247140 | Yes |
| AL7 1DD | 51.812404 | -0.190147 | 524862 | 214190 | TL248141 | Yes |
| AL7 1DE | 51.812283 | -0.190379 | 524846 | 214176 | TL248141 | Yes |
| AL7 1DF | 51.81313 | -0.189271 | 524920 | 214272 | TL249142 | No |
| AL7 1DG | 51.813605 | -0.188764 | 524954 | 214326 | TL249143 | Yes |
| AL7 1DH | 51.812097 | -0.191871 | 524744 | 214153 | TL247141 | Yes |
| AL7 1DJ | 51.811829 | -0.193724 | 524617 | 214120 | TL246141 | Yes |
| AL7 1DL | 51.813458 | -0.193833 | 524605 | 214301 | TL246143 | Yes |
| AL7 1DN | 51.814824 | -0.192589 | 524687 | 214455 | TL246144 | Yes |
| AL7 1DP | 51.816307 | -0.191354 | 524768 | 214622 | TL247146 | Yes |
| AL7 1DQ | 51.813514 | -0.189827 | 524881 | 214314 | TL248143 | Yes |
| AL7 1DR | 51.81644 | -0.192393 | 524696 | 214635 | TL246146 | Yes |
| AL7 1DS | 51.814941 | -0.190219 | 524850 | 214472 | TL248144 | Yes |
| AL7 1DT | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL7 1DU | 51.814738 | -0.190517 | 524830 | 214449 | TL248144 | Yes |
| AL7 1DW | 51.81643 | -0.192902 | 524661 | 214633 | TL246146 | Yes |
| AL7 1DX | 51.814122 | -0.190774 | 524814 | 214380 | TL248143 | Yes |
| AL7 1DY | 51.809494 | -0.188518 | 524982 | 213869 | TL249138 | No |
| AL7 1DZ | 51.812634 | -0.191661 | 524757 | 214213 | TL247142 | Yes |
| AL7 1EA | 51.812627 | -0.192387 | 524707 | 214211 | TL247142 | Yes |
| AL7 1EB | 51.814022 | -0.191301 | 524778 | 214368 | TL247143 | Yes |
| AL7 1ED | 51.814405 | -0.192257 | 524711 | 214409 | TL247144 | Yes |
| AL7 1EE | 51.813825 | -0.191961 | 524733 | 214345 | TL247143 | Yes |
| AL7 1EF | 51.813149 | -0.19357 | 524624 | 214267 | TL246142 | Yes |
| AL7 1EG | 51.813268 | -0.192578 | 524692 | 214282 | TL246142 | Yes |
| AL7 1EH | 51.805344 | -0.189931 | 524896 | 213405 | TL248134 | No |
| AL7 1EJ | 51.809932 | -0.188326 | 524994 | 213918 | TL249139 | No |
| AL7 1EL | 51.808088 | -0.191379 | 524789 | 213708 | TL247137 | Yes |
| AL7 1EN | 51.809134 | -0.188503 | 524984 | 213829 | TL249138 | Yes |
| AL7 1EP | 51.805339 | -0.190816 | 524835 | 213403 | TL248134 | Yes |
| AL7 1EQ | 51.811821 | -0.193217 | 524652 | 214120 | TL246141 | Yes |
| AL7 1ER | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL7 1ES | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL7 1ET | 51.810097 | -0.190901 | 524816 | 213932 | TL248139 | No |
| AL7 1EU | 51.80948 | -0.189359 | 524924 | 213866 | TL249138 | Yes |
| AL7 1EW | 51.805785 | -0.191877 | 524761 | 213451 | TL247134 | Yes |
| AL7 1EX | 51.808142 | -0.190037 | 524881 | 213716 | TL248137 | No |
| AL7 1EY | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL7 1EZ | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL7 1FA | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL7 1FB | 51.804371 | -0.191609 | 524783 | 213294 | TL247132 | No |
| AL7 1FE | 51.804084 | -0.199279 | 524255 | 213249 | TL242132 | Yes |
| AL7 1FF | 51.796505 | -0.177726 | 525762 | 212443 | TL257124 | Yes |
| AL7 1FG | 51.795784 | -0.17703 | 525812 | 212364 | TL258123 | Yes |
| AL7 1FH | 51.796366 | -0.17866 | 525698 | 212426 | TL256124 | Yes |
| AL7 1FJ | 51.796681 | -0.179228 | 525658 | 212460 | TL256124 | Yes |
| AL7 1FL | 51.797004 | -0.179795 | 525618 | 212495 | TL256124 | Yes |
| AL7 1FN | 51.797569 | -0.18028 | 525583 | 212557 | TL255125 | Yes |
| AL7 1FP | 51.79739 | -0.177981 | 525742 | 212541 | TL257125 | Yes |
| AL7 1FQ | 51.797771 | -0.179387 | 525644 | 212581 | TL256125 | Yes |
| AL7 1FR | 51.79757 | -0.179714 | 525622 | 212558 | TL256125 | Yes |
| AL7 1FS | 51.807087 | -0.189252 | 524938 | 213600 | TL249136 | Yes |
| AL7 1FT | 51.807698 | -0.189242 | 524937 | 213668 | TL249136 | Yes |
| AL7 1FU | 51.805849 | -0.197198 | 524394 | 213449 | TL243134 | Yes |
| AL7 1FW | 51.798627 | -0.180092 | 525593 | 212675 | TL255126 | Yes |
| AL7 1FX | 51.809208 | -0.18805 | 525015 | 213838 | TL250138 | Yes |
| AL7 1FY | 51.80627 | -0.197674 | 524360 | 213495 | TL243134 | Yes |
| AL7 1FZ | 51.809814 | -0.188974 | 524950 | 213904 | TL249139 | Yes |
| AL7 1GA | 51.809974 | -0.196346 | 524441 | 213909 | TL244139 | Yes |
| AL7 1GB | 51.809343 | -0.192745 | 524691 | 213845 | TL246138 | Yes |
| AL7 1GD | 51.798784 | -0.189672 | 524932 | 212676 | TL249126 | Yes |
| AL7 1GE | 51.807779 | -0.186323 | 525138 | 213682 | TL251136 | Yes |
| AL7 1GF | 51.803194 | -0.199987 | 524209 | 213149 | TL242131 | Yes |
| AL7 1GG | 51.799132 | -0.191968 | 524773 | 212711 | TL247127 | Yes |
| AL7 1GH | 51.805423 | -0.197577 | 524369 | 213401 | TL243134 | Yes |
| AL7 1GJ | 51.806064 | -0.195971 | 524478 | 213475 | TL244134 | Yes |
| AL7 1GL | 51.798784 | -0.189672 | 524932 | 212676 | TL249126 | No |
| AL7 1GN | 51.802795 | -0.189105 | 524960 | 213123 | TL249131 | No |
| AL7 1GP | 51.805727 | -0.199234 | 524254 | 213432 | TL242134 | Yes |
| AL7 1GQ | 51.805937 | -0.199994 | 524201 | 213454 | TL242134 | Yes |
| AL7 1GR | 51.805698 | -0.198495 | 524305 | 213430 | TL243134 | Yes |
| AL7 1GS | 51.806194 | -0.198591 | 524297 | 213485 | TL242134 | Yes |
| AL7 1GT | 51.806371 | -0.199614 | 524226 | 213503 | TL242135 | Yes |
| AL7 1GU | 51.803904 | -0.188698 | 524985 | 213247 | TL249132 | Yes |
| AL7 1GW | 51.801311 | -0.191577 | 524794 | 212954 | TL247129 | Yes |
| AL7 1GX | 51.801301 | -0.185496 | 525213 | 212963 | TL252129 | Yes |
| AL7 1GY | 51.798656 | -0.190692 | 524862 | 212660 | TL248126 | Yes |
| AL7 1GZ | 51.79889 | -0.191249 | 524823 | 212685 | TL248126 | Yes |
| AL7 1HA | 51.805147 | -0.188851 | 524971 | 213385 | TL249133 | Yes |
| AL7 1HB | 51.804227 | -0.200405 | 524177 | 213263 | TL241132 | Yes |
| AL7 1HD | 51.804482 | -0.195898 | 524487 | 213299 | TL244132 | No |
| AL7 1HE | 51.805406 | -0.19649 | 524444 | 213401 | TL244134 | Yes |
| AL7 1HF | 51.803011 | -0.199656 | 524232 | 213129 | TL242131 | No |
| AL7 1HG | 51.802406 | -0.191417 | 524802 | 213076 | TL248130 | Yes |
| AL7 1HH | 51.805126 | -0.194645 | 524572 | 213373 | TL245133 | Yes |
| AL7 1HJ | 51.804782 | -0.199643 | 524228 | 213326 | TL242133 | Yes |
| AL7 1HL | 51.801382 | -0.197197 | 524406 | 212952 | TL244129 | Yes |
| AL7 1HN | 51.792831 | -0.17289 | 526106 | 212043 | TL261120 | Yes |
| AL7 1HP | 51.803591 | -0.187652 | 525058 | 213214 | TL250132 | No |
| AL7 1HQ | 51.793737 | -0.174506 | 525992 | 212141 | TL259121 | Yes |
| AL7 1HR | 51.793491 | -0.173138 | 526087 | 212116 | TL260121 | Yes |
| AL7 1HS | 51.800938 | -0.198752 | 524300 | 212900 | TL242128 | No |