This page provides postcode data for the Hertfordshire English ceremonial county. Hertfordshire contains approximately 453,815 households with a population of about 1,116,083 (2011 census)
| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? |
|---|---|---|---|---|---|---|
| WD18 1QW | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1QX | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1QY | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1QZ | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1RA | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1RB | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1RD | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1RE | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | Yes |
| WD18 1RF | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1RG | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1RH | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1RJ | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1RL | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1RN | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1RP | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1RQ | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1RR | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1RS | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1RT | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1RU | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1RX | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1RY | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1RZ | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1SA | 51.658969 | -0.403422 | 510534 | 196783 | TQ105967 | Yes |
| WD18 1SB | 51.658969 | -0.403422 | 510534 | 196783 | TQ105967 | Yes |
| WD18 1SD | 51.658969 | -0.403422 | 510534 | 196783 | TQ105967 | Yes |
| WD18 1SE | 51.658969 | -0.403422 | 510534 | 196783 | TQ105967 | Yes |
| WD18 1SF | 51.658969 | -0.403422 | 510534 | 196783 | TQ105967 | Yes |
| WD18 1SG | 51.658969 | -0.403422 | 510534 | 196783 | TQ105967 | Yes |
| WD18 1SH | 51.658969 | -0.403422 | 510534 | 196783 | TQ105967 | Yes |
| WD18 1SJ | 51.658969 | -0.403422 | 510534 | 196783 | TQ105967 | Yes |
| WD18 1SL | 51.658969 | -0.403422 | 510534 | 196783 | TQ105967 | Yes |
| WD18 1SN | 51.658969 | -0.403422 | 510534 | 196783 | TQ105967 | Yes |
| WD18 1SP | 51.658969 | -0.403422 | 510534 | 196783 | TQ105967 | Yes |
| WD18 1SQ | 51.658969 | -0.403422 | 510534 | 196783 | TQ105967 | Yes |
| WD18 1SR | 51.658969 | -0.403422 | 510534 | 196783 | TQ105967 | Yes |
| WD18 1SS | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1ST | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1SU | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1SW | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1SX | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1SY | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1SZ | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1TA | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1TB | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1TD | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | Yes |
| WD18 1TE | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1TF | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1TG | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1TH | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1TJ | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1TL | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1TN | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1TP | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1TQ | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1TR | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1TS | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | Yes |
| WD18 1TT | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | Yes |
| WD18 1TU | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1TW | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1TX | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1TY | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1TZ | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | Yes |
| WD18 1UA | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1UB | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1UD | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1UF | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1UG | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1UH | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1UJ | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1UL | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1UN | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1UP | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1UQ | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | Yes |
| WD18 1UR | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | Yes |
| WD18 1US | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1UT | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1UU | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1UW | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1UY | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1UZ | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1WA | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1WB | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1WD | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1WE | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1WF | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1WG | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1WH | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1WJ | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1WL | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1WN | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1WP | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1WQ | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1WR | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1WS | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | Yes |
| WD18 1WT | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1WU | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1WW | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1WX | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1WY | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1WZ | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1XA | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | Yes |
| WD18 1XB | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | Yes |
| WD18 1XD | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1XE | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | Yes |
| WD18 1XF | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | Yes |
| WD18 1XG | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | Yes |
| WD18 1XH | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1XJ | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1XL | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1XN | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | Yes |
| WD18 1XP | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1XQ | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1XR | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1XS | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1XT | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | Yes |
| WD18 1XU | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | Yes |
| WD18 1XW | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1XX | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1XY | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1XZ | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YA | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YB | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YD | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YE | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YF | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YG | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YH | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YJ | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YL | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YN | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YP | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YQ | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YR | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YS | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YT | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YU | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YW | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YX | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 1YY | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1YZ | 51.641755 | -0.427874 | 508883 | 194832 | TQ088948 | No |
| WD18 1ZH | 51.658969 | -0.403422 | 510534 | 196783 | TQ105967 | Yes |
| WD18 1ZZ | 51.658969 | -0.403422 | 510534 | 196783 | TQ105967 | Yes |
| WD18 6AA | 51.646516 | -0.416767 | 509641 | 195378 | TQ096953 | Yes |
| WD18 6AB | 51.645354 | -0.409349 | 510157 | 195260 | TQ101952 | Yes |
| WD18 6AD | 51.645932 | -0.408852 | 510190 | 195325 | TQ101953 | Yes |
| WD18 6AE | 51.64737 | -0.418746 | 509502 | 195470 | TQ095954 | Yes |
| WD18 6AF | 51.645936 | -0.411136 | 510031 | 195322 | TQ100953 | Yes |
| WD18 6AG | 51.64501 | -0.418496 | 509525 | 195208 | TQ095952 | Yes |
| WD18 6AH | 51.643995 | -0.423908 | 509153 | 195087 | TQ091950 | Yes |
| WD18 6BW | 51.647774 | -0.420077 | 509408 | 195513 | TQ094955 | Yes |
| WD18 6FU | 51.646303 | -0.413681 | 509855 | 195359 | TQ098953 | Yes |
| WD18 6FW | 51.646303 | -0.413667 | 509856 | 195359 | TQ098953 | No |
| WD18 6GA | 51.649586 | -0.422428 | 509241 | 195711 | TQ092957 | No |
| WD18 6GB | 51.646787 | -0.41485 | 509772 | 195411 | TQ097954 | Yes |
| WD18 6GD | 51.647099 | -0.415359 | 509737 | 195445 | TQ097954 | Yes |
| WD18 6GE | 51.646433 | -0.414602 | 509790 | 195372 | TQ097953 | Yes |
| WD18 6GF | 51.647024 | -0.413136 | 509890 | 195440 | TQ098954 | Yes |
| WD18 6GG | 51.647187 | -0.412523 | 509933 | 195459 | TQ099954 | Yes |
| WD18 6GH | 51.646052 | -0.413083 | 509897 | 195332 | TQ098953 | Yes |
| WD18 6GJ | 51.647508 | -0.412338 | 509945 | 195495 | TQ099954 | Yes |
| WD18 6GL | 51.647514 | -0.41413 | 509821 | 195493 | TQ098954 | Yes |
| WD18 6GN | 51.647375 | -0.415133 | 509751 | 195476 | TQ097954 | Yes |
| WD18 6GP | 51.646303 | -0.413681 | 509855 | 195359 | TQ098953 | Yes |
| WD18 6GQ | 51.645998 | -0.412377 | 509945 | 195327 | TQ099953 | Yes |
| WD18 6GR | 51.647178 | -0.414547 | 509793 | 195455 | TQ097954 | Yes |
| WD18 6GS | 51.647706 | -0.412996 | 509899 | 195516 | TQ098955 | Yes |
| WD18 6GT | 51.64782 | -0.414799 | 509774 | 195526 | TQ097955 | Yes |
| WD18 6GU | 51.646842 | -0.415614 | 509719 | 195416 | TQ097954 | Yes |
| WD18 6GW | 51.646483 | -0.413039 | 509899 | 195380 | TQ098953 | Yes |
| WD18 6GX | 51.647375 | -0.415133 | 509751 | 195476 | TQ097954 | Yes |
| WD18 6GY | 51.645678 | -0.412026 | 509971 | 195292 | TQ099952 | Yes |
| WD18 6GZ | 51.645998 | -0.412377 | 509945 | 195327 | TQ099953 | Yes |
| WD18 6JD | 51.644688 | -0.410601 | 510072 | 195184 | TQ100951 | Yes |
| WD18 6JG | 51.643822 | -0.410444 | 510084 | 195088 | TQ100950 | Yes |
| WD18 6JH | 51.643334 | -0.41153 | 510011 | 195032 | TQ100950 | Yes |
| WD18 6JJ | 51.643895 | -0.409184 | 510171 | 195098 | TQ101950 | Yes |
| WD18 6JL | 51.642476 | -0.410621 | 510076 | 194938 | TQ100949 | Yes |
| WD18 6JN | 51.642272 | -0.411495 | 510016 | 194914 | TQ100949 | Yes |
| WD18 6JP | 51.643017 | -0.412712 | 509930 | 194995 | TQ099949 | Yes |
| WD18 6JQ | 51.643403 | -0.409996 | 510117 | 195042 | TQ101950 | Yes |
| WD18 6JR | 51.643532 | -0.412232 | 509961 | 195053 | TQ099950 | Yes |
| WD18 6JS | 51.644232 | -0.412135 | 509967 | 195131 | TQ099951 | Yes |
| WD18 6JT | 51.644452 | -0.411795 | 509989 | 195156 | TQ099951 | Yes |
| WD18 6JU | 51.644277 | -0.414157 | 509826 | 195133 | TQ098951 | Yes |
| WD18 6JW | 51.643234 | -0.408802 | 510200 | 195025 | TQ101950 | Yes |
| WD18 6JX | 51.644643 | -0.414563 | 509798 | 195173 | TQ097951 | Yes |
| WD18 6JY | 51.645437 | -0.414131 | 509825 | 195262 | TQ098952 | Yes |
| WD18 6JZ | 51.645339 | -0.414886 | 509773 | 195250 | TQ097952 | Yes |
| WD18 6LA | 51.644242 | -0.415545 | 509731 | 195127 | TQ097951 | Yes |
| WD18 6LB | 51.643398 | -0.416298 | 509680 | 195032 | TQ096950 | Yes |
| WD18 6LD | 51.64499 | -0.415621 | 509723 | 195210 | TQ097952 | Yes |
| WD18 6LE | 51.644348 | -0.416741 | 509648 | 195137 | TQ096951 | Yes |
| WD18 6LF | 51.644681 | -0.416715 | 509649 | 195174 | TQ096951 | Yes |
| WD18 6LG | 51.643323 | -0.409449 | 510155 | 195034 | TQ101950 | Yes |
| WD18 6LJ | 51.6484 | -0.415155 | 509747 | 195590 | TQ097955 | Yes |
| WD18 6LL | 51.644279 | -0.418305 | 509539 | 195127 | TQ095951 | Yes |
| WD18 6LN | 51.648372 | -0.415083 | 509753 | 195587 | TQ097955 | No |
| WD18 6LP | 51.648472 | -0.417147 | 509610 | 195595 | TQ096955 | No |
| WD18 6NP | 51.647769 | -0.415654 | 509714 | 195519 | TQ097955 | Yes |